From 6d3f8152fc5544e74f3be1f50ba9cbd62f1ec41b Mon Sep 17 00:00:00 2001
From: Leonardo Balter <leonardo.balter@gmail.com>
Date: Fri, 17 Mar 2017 18:12:14 -0400
Subject: [PATCH 1/2] Add async gen templates for dstr-binding
---
.../default/async-gen-func-decl-dflt.template | 27 ++++++++++
.../default/async-gen-func-decl.template | 27 ++++++++++
.../default/async-gen-func-expr-dflt.template | 29 ++++++++++
.../default/async-gen-func-expr.template | 29 ++++++++++
.../async-gen-func-named-expr-dflt.template | 29 ++++++++++
.../async-gen-func-named-expr.template | 29 ++++++++++
.../default/async-gen-meth.template | 35 ++++++++++++
.../default/async-gen-method-dflt.template | 35 ++++++++++++
.../cls-decl-async-gen-meth-dflt.template | 53 ++++++++++++++++++
...s-decl-async-gen-meth-static-dflt.template | 53 ++++++++++++++++++
.../cls-decl-async-gen-meth-static.template | 53 ++++++++++++++++++
.../default/cls-decl-async-gen-meth.template | 53 ++++++++++++++++++
.../cls-expr-async-gen-meth-dflt.template | 54 +++++++++++++++++++
...s-expr-async-gen-meth-static-dflt.template | 54 +++++++++++++++++++
.../cls-expr-async-gen-meth-static.template | 54 +++++++++++++++++++
.../default/cls-expr-async-gen-meth.template | 54 +++++++++++++++++++
16 files changed, 668 insertions(+)
create mode 100644 src/dstr-binding/default/async-gen-func-decl-dflt.template
create mode 100644 src/dstr-binding/default/async-gen-func-decl.template
create mode 100644 src/dstr-binding/default/async-gen-func-expr-dflt.template
create mode 100644 src/dstr-binding/default/async-gen-func-expr.template
create mode 100644 src/dstr-binding/default/async-gen-func-named-expr-dflt.template
create mode 100644 src/dstr-binding/default/async-gen-func-named-expr.template
create mode 100644 src/dstr-binding/default/async-gen-meth.template
create mode 100644 src/dstr-binding/default/async-gen-method-dflt.template
create mode 100644 src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
create mode 100644 src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
create mode 100644 src/dstr-binding/default/cls-decl-async-gen-meth-static.template
create mode 100644 src/dstr-binding/default/cls-decl-async-gen-meth.template
create mode 100644 src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
create mode 100644 src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
create mode 100644 src/dstr-binding/default/cls-expr-async-gen-meth-static.template
create mode 100644 src/dstr-binding/default/cls-expr-async-gen-meth.template
diff --git a/src/dstr-binding/default/async-gen-func-decl-dflt.template b/src/dstr-binding/default/async-gen-func-decl-dflt.template
new file mode 100644
index 0000000000..1f7045cd81
--- /dev/null
+++ b/src/dstr-binding/default/async-gen-func-decl-dflt.template
@@ -0,0 +1,27 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/statements/async-generator/dstr-dflt-
+name: async generator function declaration (default parameter)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+flags: [async]
+---*/
+
+var callCount = 0;
+async function* f(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/src/dstr-binding/default/async-gen-func-decl.template b/src/dstr-binding/default/async-gen-func-decl.template
new file mode 100644
index 0000000000..0eeb3eae20
--- /dev/null
+++ b/src/dstr-binding/default/async-gen-func-decl.template
@@ -0,0 +1,27 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/statements/async-generator/dstr-
+name: async generator function declaration
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+flags: [async]
+---*/
+
+var callCount = 0;
+async function* f(/*{ elems }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+};
+f(/*{ vals }*/).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/src/dstr-binding/default/async-gen-func-expr-dflt.template b/src/dstr-binding/default/async-gen-func-expr-dflt.template
new file mode 100644
index 0000000000..c514a6aa96
--- /dev/null
+++ b/src/dstr-binding/default/async-gen-func-expr-dflt.template
@@ -0,0 +1,29 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/async-generator/dstr-dflt-
+name: async generator function expression (default parameter)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+flags: [async]
+---*/
+
+var callCount = 0;
+var f;
+f = async function*(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/src/dstr-binding/default/async-gen-func-expr.template b/src/dstr-binding/default/async-gen-func-expr.template
new file mode 100644
index 0000000000..09e743cba2
--- /dev/null
+++ b/src/dstr-binding/default/async-gen-func-expr.template
@@ -0,0 +1,29 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/async-generator/dstr-
+name: async generator function expression
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+flags: [async]
+---*/
+
+var callCount = 0;
+var f;
+f = async function*(/*{ elems }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+};
+
+f(/*{ vals }*/).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/src/dstr-binding/default/async-gen-func-named-expr-dflt.template b/src/dstr-binding/default/async-gen-func-named-expr-dflt.template
new file mode 100644
index 0000000000..e7bec27226
--- /dev/null
+++ b/src/dstr-binding/default/async-gen-func-named-expr-dflt.template
@@ -0,0 +1,29 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/async-generator/dstr-named-dflt-
+name: async generator named function expression (default parameter)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+flags: [async]
+---*/
+
+var callCount = 0;
+var f;
+f = async function* g(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/src/dstr-binding/default/async-gen-func-named-expr.template b/src/dstr-binding/default/async-gen-func-named-expr.template
new file mode 100644
index 0000000000..8f064343b1
--- /dev/null
+++ b/src/dstr-binding/default/async-gen-func-named-expr.template
@@ -0,0 +1,29 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/async-generator/dstr-named-
+name: async generator named function expression
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+flags: [async]
+---*/
+
+var callCount = 0;
+var f;
+f = async function* g(/*{ elems }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+};
+
+f(/*{ vals }*/).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/src/dstr-binding/default/async-gen-meth.template b/src/dstr-binding/default/async-gen-meth.template
new file mode 100644
index 0000000000..71142977d8
--- /dev/null
+++ b/src/dstr-binding/default/async-gen-meth.template
@@ -0,0 +1,35 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/object/dstr-async-gen-meth-
+name: async generator method
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+flags: [async]
+---*/
+
+var callCount = 0;
+var obj = {
+ async *method(/*{ elems }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(/*{ vals }*/).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/src/dstr-binding/default/async-gen-method-dflt.template b/src/dstr-binding/default/async-gen-method-dflt.template
new file mode 100644
index 0000000000..c0c98a853e
--- /dev/null
+++ b/src/dstr-binding/default/async-gen-method-dflt.template
@@ -0,0 +1,35 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/object/dstr-async-gen-meth-dflt-
+name: async generator method (default parameter)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+flags: [async]
+---*/
+
+var callCount = 0;
+var obj = {
+ async *method(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template b/src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
new file mode 100644
index 0000000000..ab50758df8
--- /dev/null
+++ b/src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
@@ -0,0 +1,53 @@
+// Copyright (C) 2017 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-async-gen-meth-dflt-
+name: class expression async generator method (default parameters)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+flags: [async]
+---*/
+
+var callCount = 0;
+class C {
+ async *method(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template b/src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
new file mode 100644
index 0000000000..2fc323229d
--- /dev/null
+++ b/src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
@@ -0,0 +1,53 @@
+// Copyright (C) 2017 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-async-gen-meth-static-dflt-
+name: static class expression async generator method (default parameter)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+flags: [async]
+---*/
+
+var callCount = 0;
+class C {
+ static async *method(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/src/dstr-binding/default/cls-decl-async-gen-meth-static.template b/src/dstr-binding/default/cls-decl-async-gen-meth-static.template
new file mode 100644
index 0000000000..8586b9227c
--- /dev/null
+++ b/src/dstr-binding/default/cls-decl-async-gen-meth-static.template
@@ -0,0 +1,53 @@
+// Copyright (C) 2017 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-async-gen-meth-static-
+name: static class expression async generator method
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+flags: [async]
+---*/
+
+var callCount = 0;
+class C {
+ static async *method(/*{ elems }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+C.method(/*{ vals }*/).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/src/dstr-binding/default/cls-decl-async-gen-meth.template b/src/dstr-binding/default/cls-decl-async-gen-meth.template
new file mode 100644
index 0000000000..d326b878c7
--- /dev/null
+++ b/src/dstr-binding/default/cls-decl-async-gen-meth.template
@@ -0,0 +1,53 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/statements/class/dstr-async-gen-meth-
+name: class expression method
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+flags: [async]
+---*/
+
+var callCount = 0;
+class C {
+ async *method(/*{ elems }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(/*{ vals }*/).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template b/src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
new file mode 100644
index 0000000000..4e0acac1ed
--- /dev/null
+++ b/src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
@@ -0,0 +1,54 @@
+// Copyright (C) 2017 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-async-gen-meth-dflt-
+name: class expression async generator method (default parameter)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+flags: [async]
+---*/
+
+var callCount = 0;
+var C = class {
+ async *method(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template b/src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
new file mode 100644
index 0000000000..3dbcf59e2a
--- /dev/null
+++ b/src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
@@ -0,0 +1,54 @@
+// Copyright (C) 2017 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-async-gen-meth-static-dflt-
+name: static class expression async generator method (default parameter)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+flags: [async]
+---*/
+
+var callCount = 0;
+var C = class {
+ static async *method(/*{ elems }*/ = /*{ vals }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/src/dstr-binding/default/cls-expr-async-gen-meth-static.template b/src/dstr-binding/default/cls-expr-async-gen-meth-static.template
new file mode 100644
index 0000000000..003cd8cb35
--- /dev/null
+++ b/src/dstr-binding/default/cls-expr-async-gen-meth-static.template
@@ -0,0 +1,54 @@
+// Copyright (C) 2017 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-async-gen-meth-static-
+name: static class expression async generator method
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+flags: [async]
+---*/
+
+var callCount = 0;
+var C = class {
+ static async *method(/*{ elems }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+C.method(/*{ vals }*/).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/src/dstr-binding/default/cls-expr-async-gen-meth.template b/src/dstr-binding/default/cls-expr-async-gen-meth.template
new file mode 100644
index 0000000000..5ef3e6228e
--- /dev/null
+++ b/src/dstr-binding/default/cls-expr-async-gen-meth.template
@@ -0,0 +1,54 @@
+// Copyright (C) 2017 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-async-gen-meth-
+name: class expression method
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+flags: [async]
+---*/
+
+var callCount = 0;
+var C = class {
+ async *method(/*{ elems }*/) {
+ /*{ body }*/
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(/*{ vals }*/).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
--
GitLab
From 285888ada113958fdf16c4c94c72d8e13715d2bf Mon Sep 17 00:00:00 2001
From: Leonardo Balter <leonardo.balter@gmail.com>
Date: Fri, 17 Mar 2017 19:21:20 -0400
Subject: [PATCH 2/2] Generate tests
---
.../dstr-ary-init-iter-close.js | 53 ++++++++++
.../dstr-ary-init-iter-no-close.js | 53 ++++++++++
.../async-generator/dstr-ary-name-iter-val.js | 52 ++++++++++
.../dstr-ary-ptrn-elem-ary-elem-init.js | 44 +++++++++
.../dstr-ary-ptrn-elem-ary-elem-iter.js | 45 +++++++++
.../dstr-ary-ptrn-elem-ary-elision-init.js | 51 ++++++++++
.../dstr-ary-ptrn-elem-ary-elision-iter.js | 48 ++++++++++
.../dstr-ary-ptrn-elem-ary-empty-init.js | 46 +++++++++
.../dstr-ary-ptrn-elem-ary-empty-iter.js | 44 +++++++++
.../dstr-ary-ptrn-elem-ary-rest-init.js | 48 ++++++++++
.../dstr-ary-ptrn-elem-ary-rest-iter.js | 51 ++++++++++
.../dstr-ary-ptrn-elem-id-init-exhausted.js | 43 +++++++++
...str-ary-ptrn-elem-id-init-fn-name-arrow.js | 44 +++++++++
...str-ary-ptrn-elem-id-init-fn-name-class.js | 46 +++++++++
...str-ary-ptrn-elem-id-init-fn-name-cover.js | 45 +++++++++
.../dstr-ary-ptrn-elem-id-init-fn-name-fn.js | 45 +++++++++
.../dstr-ary-ptrn-elem-id-init-fn-name-gen.js | 45 +++++++++
.../dstr-ary-ptrn-elem-id-init-hole.js | 39 ++++++++
.../dstr-ary-ptrn-elem-id-init-skipped.js | 48 ++++++++++
.../dstr-ary-ptrn-elem-id-init-undef.js | 42 ++++++++
.../dstr-ary-ptrn-elem-id-iter-complete.js | 46 +++++++++
.../dstr-ary-ptrn-elem-id-iter-done.js | 41 ++++++++
.../dstr-ary-ptrn-elem-id-iter-val.js | 52 ++++++++++
.../dstr-ary-ptrn-elem-obj-id-init.js | 44 +++++++++
.../dstr-ary-ptrn-elem-obj-id.js | 44 +++++++++
.../dstr-ary-ptrn-elem-obj-prop-id-init.js | 54 +++++++++++
.../dstr-ary-ptrn-elem-obj-prop-id.js | 54 +++++++++++
.../dstr-ary-ptrn-elision-exhausted.js | 49 ++++++++++
.../async-generator/dstr-ary-ptrn-elision.js | 58 +++++++++++
.../async-generator/dstr-ary-ptrn-empty.js | 41 ++++++++
.../dstr-ary-ptrn-rest-ary-elem.js | 65 +++++++++++++
.../dstr-ary-ptrn-rest-ary-elision.js | 71 ++++++++++++++
.../dstr-ary-ptrn-rest-ary-empty.js | 54 +++++++++++
.../dstr-ary-ptrn-rest-ary-rest.js | 50 ++++++++++
.../dstr-ary-ptrn-rest-id-elision.js | 46 +++++++++
.../dstr-ary-ptrn-rest-id-exhausted.js | 42 ++++++++
.../async-generator/dstr-ary-ptrn-rest-id.js | 43 +++++++++
.../dstr-ary-ptrn-rest-init-ary.js | 39 ++++++++
.../dstr-ary-ptrn-rest-init-id.js | 39 ++++++++
.../dstr-ary-ptrn-rest-init-obj.js | 39 ++++++++
.../dstr-ary-ptrn-rest-not-final-ary.js | 39 ++++++++
.../dstr-ary-ptrn-rest-not-final-id.js | 39 ++++++++
.../dstr-ary-ptrn-rest-not-final-obj.js | 39 ++++++++
.../dstr-ary-ptrn-rest-obj-id.js | 43 +++++++++
.../dstr-ary-ptrn-rest-obj-prop-id.js | 51 ++++++++++
.../dstr-dflt-ary-init-iter-close.js | 53 ++++++++++
.../dstr-dflt-ary-init-iter-no-close.js | 53 ++++++++++
.../dstr-dflt-ary-name-iter-val.js | 52 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-elem-init.js | 44 +++++++++
.../dstr-dflt-ary-ptrn-elem-ary-elem-iter.js | 45 +++++++++
...str-dflt-ary-ptrn-elem-ary-elision-init.js | 51 ++++++++++
...str-dflt-ary-ptrn-elem-ary-elision-iter.js | 48 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-empty-init.js | 46 +++++++++
.../dstr-dflt-ary-ptrn-elem-ary-empty-iter.js | 44 +++++++++
.../dstr-dflt-ary-ptrn-elem-ary-rest-init.js | 48 ++++++++++
.../dstr-dflt-ary-ptrn-elem-ary-rest-iter.js | 51 ++++++++++
...tr-dflt-ary-ptrn-elem-id-init-exhausted.js | 43 +++++++++
...flt-ary-ptrn-elem-id-init-fn-name-arrow.js | 44 +++++++++
...flt-ary-ptrn-elem-id-init-fn-name-class.js | 46 +++++++++
...flt-ary-ptrn-elem-id-init-fn-name-cover.js | 45 +++++++++
...r-dflt-ary-ptrn-elem-id-init-fn-name-fn.js | 45 +++++++++
...-dflt-ary-ptrn-elem-id-init-fn-name-gen.js | 45 +++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-hole.js | 39 ++++++++
...dstr-dflt-ary-ptrn-elem-id-init-skipped.js | 48 ++++++++++
.../dstr-dflt-ary-ptrn-elem-id-init-undef.js | 42 ++++++++
...str-dflt-ary-ptrn-elem-id-iter-complete.js | 46 +++++++++
.../dstr-dflt-ary-ptrn-elem-id-iter-done.js | 41 ++++++++
.../dstr-dflt-ary-ptrn-elem-id-iter-val.js | 52 ++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-id-init.js | 44 +++++++++
.../dstr-dflt-ary-ptrn-elem-obj-id.js | 44 +++++++++
...str-dflt-ary-ptrn-elem-obj-prop-id-init.js | 54 +++++++++++
.../dstr-dflt-ary-ptrn-elem-obj-prop-id.js | 54 +++++++++++
.../dstr-dflt-ary-ptrn-elision-exhausted.js | 49 ++++++++++
.../dstr-dflt-ary-ptrn-elision.js | 58 +++++++++++
.../dstr-dflt-ary-ptrn-empty.js | 41 ++++++++
.../dstr-dflt-ary-ptrn-rest-ary-elem.js | 65 +++++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-elision.js | 71 ++++++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-empty.js | 54 +++++++++++
.../dstr-dflt-ary-ptrn-rest-ary-rest.js | 50 ++++++++++
.../dstr-dflt-ary-ptrn-rest-id-elision.js | 46 +++++++++
.../dstr-dflt-ary-ptrn-rest-id-exhausted.js | 42 ++++++++
.../dstr-dflt-ary-ptrn-rest-id.js | 43 +++++++++
.../dstr-dflt-ary-ptrn-rest-init-ary.js | 39 ++++++++
.../dstr-dflt-ary-ptrn-rest-init-id.js | 39 ++++++++
.../dstr-dflt-ary-ptrn-rest-init-obj.js | 39 ++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-ary.js | 39 ++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-id.js | 39 ++++++++
.../dstr-dflt-ary-ptrn-rest-not-final-obj.js | 39 ++++++++
.../dstr-dflt-ary-ptrn-rest-obj-id.js | 43 +++++++++
.../dstr-dflt-ary-ptrn-rest-obj-prop-id.js | 51 ++++++++++
.../dstr-dflt-obj-ptrn-empty.js | 42 ++++++++
...str-dflt-obj-ptrn-id-init-fn-name-arrow.js | 43 +++++++++
...str-dflt-obj-ptrn-id-init-fn-name-class.js | 45 +++++++++
...str-dflt-obj-ptrn-id-init-fn-name-cover.js | 44 +++++++++
.../dstr-dflt-obj-ptrn-id-init-fn-name-fn.js | 44 +++++++++
.../dstr-dflt-obj-ptrn-id-init-fn-name-gen.js | 44 +++++++++
.../dstr-dflt-obj-ptrn-id-init-skipped.js | 47 +++++++++
.../dstr-dflt-obj-ptrn-id-trailing-comma.js | 37 +++++++
.../dstr-dflt-obj-ptrn-prop-ary-init.js | 46 +++++++++
...r-dflt-obj-ptrn-prop-ary-trailing-comma.js | 37 +++++++
.../dstr-dflt-obj-ptrn-prop-ary.js | 44 +++++++++
...dstr-dflt-obj-ptrn-prop-id-init-skipped.js | 59 ++++++++++++
.../dstr-dflt-obj-ptrn-prop-id-init.js | 40 ++++++++
...tr-dflt-obj-ptrn-prop-id-trailing-comma.js | 41 ++++++++
.../dstr-dflt-obj-ptrn-prop-id.js | 40 ++++++++
.../dstr-dflt-obj-ptrn-prop-obj-init.js | 46 +++++++++
.../dstr-dflt-obj-ptrn-prop-obj.js | 44 +++++++++
.../dstr-dflt-obj-ptrn-rest-getter.js | 38 ++++++++
.../dstr-dflt-obj-ptrn-rest-nested-obj.js | 35 +++++++
...dstr-dflt-obj-ptrn-rest-obj-nested-rest.js | 45 +++++++++
...str-dflt-obj-ptrn-rest-obj-own-property.js | 36 +++++++
...-dflt-obj-ptrn-rest-skip-non-enumerable.js | 44 +++++++++
.../dstr-dflt-obj-ptrn-rest-val-obj.js | 43 +++++++++
.../dstr-named-ary-init-iter-close.js | 53 ++++++++++
.../dstr-named-ary-init-iter-no-close.js | 53 ++++++++++
.../dstr-named-ary-name-iter-val.js | 52 ++++++++++
.../dstr-named-ary-ptrn-elem-ary-elem-init.js | 44 +++++++++
.../dstr-named-ary-ptrn-elem-ary-elem-iter.js | 45 +++++++++
...tr-named-ary-ptrn-elem-ary-elision-init.js | 51 ++++++++++
...tr-named-ary-ptrn-elem-ary-elision-iter.js | 48 ++++++++++
...dstr-named-ary-ptrn-elem-ary-empty-init.js | 46 +++++++++
...dstr-named-ary-ptrn-elem-ary-empty-iter.js | 44 +++++++++
.../dstr-named-ary-ptrn-elem-ary-rest-init.js | 48 ++++++++++
.../dstr-named-ary-ptrn-elem-ary-rest-iter.js | 51 ++++++++++
...r-named-ary-ptrn-elem-id-init-exhausted.js | 43 +++++++++
...med-ary-ptrn-elem-id-init-fn-name-arrow.js | 44 +++++++++
...med-ary-ptrn-elem-id-init-fn-name-class.js | 46 +++++++++
...med-ary-ptrn-elem-id-init-fn-name-cover.js | 45 +++++++++
...-named-ary-ptrn-elem-id-init-fn-name-fn.js | 45 +++++++++
...named-ary-ptrn-elem-id-init-fn-name-gen.js | 45 +++++++++
.../dstr-named-ary-ptrn-elem-id-init-hole.js | 39 ++++++++
...str-named-ary-ptrn-elem-id-init-skipped.js | 48 ++++++++++
.../dstr-named-ary-ptrn-elem-id-init-undef.js | 42 ++++++++
...tr-named-ary-ptrn-elem-id-iter-complete.js | 46 +++++++++
.../dstr-named-ary-ptrn-elem-id-iter-done.js | 41 ++++++++
.../dstr-named-ary-ptrn-elem-id-iter-val.js | 52 ++++++++++
.../dstr-named-ary-ptrn-elem-obj-id-init.js | 44 +++++++++
.../dstr-named-ary-ptrn-elem-obj-id.js | 44 +++++++++
...tr-named-ary-ptrn-elem-obj-prop-id-init.js | 54 +++++++++++
.../dstr-named-ary-ptrn-elem-obj-prop-id.js | 54 +++++++++++
.../dstr-named-ary-ptrn-elision-exhausted.js | 49 ++++++++++
.../dstr-named-ary-ptrn-elision.js | 58 +++++++++++
.../dstr-named-ary-ptrn-empty.js | 41 ++++++++
.../dstr-named-ary-ptrn-rest-ary-elem.js | 65 +++++++++++++
.../dstr-named-ary-ptrn-rest-ary-elision.js | 71 ++++++++++++++
.../dstr-named-ary-ptrn-rest-ary-empty.js | 54 +++++++++++
.../dstr-named-ary-ptrn-rest-ary-rest.js | 50 ++++++++++
.../dstr-named-ary-ptrn-rest-id-elision.js | 46 +++++++++
.../dstr-named-ary-ptrn-rest-id-exhausted.js | 42 ++++++++
.../dstr-named-ary-ptrn-rest-id.js | 43 +++++++++
.../dstr-named-ary-ptrn-rest-init-ary.js | 39 ++++++++
.../dstr-named-ary-ptrn-rest-init-id.js | 39 ++++++++
.../dstr-named-ary-ptrn-rest-init-obj.js | 39 ++++++++
.../dstr-named-ary-ptrn-rest-not-final-ary.js | 39 ++++++++
.../dstr-named-ary-ptrn-rest-not-final-id.js | 39 ++++++++
.../dstr-named-ary-ptrn-rest-not-final-obj.js | 39 ++++++++
.../dstr-named-ary-ptrn-rest-obj-id.js | 43 +++++++++
.../dstr-named-ary-ptrn-rest-obj-prop-id.js | 51 ++++++++++
.../dstr-named-dflt-ary-init-iter-close.js | 53 ++++++++++
.../dstr-named-dflt-ary-init-iter-no-close.js | 53 ++++++++++
.../dstr-named-dflt-ary-name-iter-val.js | 52 ++++++++++
...-named-dflt-ary-ptrn-elem-ary-elem-init.js | 44 +++++++++
...-named-dflt-ary-ptrn-elem-ary-elem-iter.js | 45 +++++++++
...med-dflt-ary-ptrn-elem-ary-elision-init.js | 51 ++++++++++
...med-dflt-ary-ptrn-elem-ary-elision-iter.js | 48 ++++++++++
...named-dflt-ary-ptrn-elem-ary-empty-init.js | 46 +++++++++
...named-dflt-ary-ptrn-elem-ary-empty-iter.js | 44 +++++++++
...-named-dflt-ary-ptrn-elem-ary-rest-init.js | 48 ++++++++++
...-named-dflt-ary-ptrn-elem-ary-rest-iter.js | 51 ++++++++++
...ed-dflt-ary-ptrn-elem-id-init-exhausted.js | 43 +++++++++
...flt-ary-ptrn-elem-id-init-fn-name-arrow.js | 44 +++++++++
...flt-ary-ptrn-elem-id-init-fn-name-class.js | 46 +++++++++
...flt-ary-ptrn-elem-id-init-fn-name-cover.js | 45 +++++++++
...d-dflt-ary-ptrn-elem-id-init-fn-name-fn.js | 45 +++++++++
...-dflt-ary-ptrn-elem-id-init-fn-name-gen.js | 45 +++++++++
...r-named-dflt-ary-ptrn-elem-id-init-hole.js | 39 ++++++++
...amed-dflt-ary-ptrn-elem-id-init-skipped.js | 48 ++++++++++
...-named-dflt-ary-ptrn-elem-id-init-undef.js | 42 ++++++++
...med-dflt-ary-ptrn-elem-id-iter-complete.js | 46 +++++++++
...r-named-dflt-ary-ptrn-elem-id-iter-done.js | 41 ++++++++
...tr-named-dflt-ary-ptrn-elem-id-iter-val.js | 52 ++++++++++
...tr-named-dflt-ary-ptrn-elem-obj-id-init.js | 44 +++++++++
.../dstr-named-dflt-ary-ptrn-elem-obj-id.js | 44 +++++++++
...med-dflt-ary-ptrn-elem-obj-prop-id-init.js | 54 +++++++++++
...tr-named-dflt-ary-ptrn-elem-obj-prop-id.js | 54 +++++++++++
...r-named-dflt-ary-ptrn-elision-exhausted.js | 49 ++++++++++
.../dstr-named-dflt-ary-ptrn-elision.js | 58 +++++++++++
.../dstr-named-dflt-ary-ptrn-empty.js | 41 ++++++++
.../dstr-named-dflt-ary-ptrn-rest-ary-elem.js | 65 +++++++++++++
...tr-named-dflt-ary-ptrn-rest-ary-elision.js | 71 ++++++++++++++
...dstr-named-dflt-ary-ptrn-rest-ary-empty.js | 54 +++++++++++
.../dstr-named-dflt-ary-ptrn-rest-ary-rest.js | 50 ++++++++++
...str-named-dflt-ary-ptrn-rest-id-elision.js | 46 +++++++++
...r-named-dflt-ary-ptrn-rest-id-exhausted.js | 42 ++++++++
.../dstr-named-dflt-ary-ptrn-rest-id.js | 43 +++++++++
.../dstr-named-dflt-ary-ptrn-rest-init-ary.js | 39 ++++++++
.../dstr-named-dflt-ary-ptrn-rest-init-id.js | 39 ++++++++
.../dstr-named-dflt-ary-ptrn-rest-init-obj.js | 39 ++++++++
...-named-dflt-ary-ptrn-rest-not-final-ary.js | 39 ++++++++
...r-named-dflt-ary-ptrn-rest-not-final-id.js | 39 ++++++++
...-named-dflt-ary-ptrn-rest-not-final-obj.js | 39 ++++++++
.../dstr-named-dflt-ary-ptrn-rest-obj-id.js | 43 +++++++++
...tr-named-dflt-ary-ptrn-rest-obj-prop-id.js | 51 ++++++++++
.../dstr-named-dflt-obj-ptrn-empty.js | 42 ++++++++
...med-dflt-obj-ptrn-id-init-fn-name-arrow.js | 43 +++++++++
...med-dflt-obj-ptrn-id-init-fn-name-class.js | 45 +++++++++
...med-dflt-obj-ptrn-id-init-fn-name-cover.js | 44 +++++++++
...-named-dflt-obj-ptrn-id-init-fn-name-fn.js | 44 +++++++++
...named-dflt-obj-ptrn-id-init-fn-name-gen.js | 44 +++++++++
...str-named-dflt-obj-ptrn-id-init-skipped.js | 47 +++++++++
...r-named-dflt-obj-ptrn-id-trailing-comma.js | 37 +++++++
.../dstr-named-dflt-obj-ptrn-prop-ary-init.js | 46 +++++++++
...d-dflt-obj-ptrn-prop-ary-trailing-comma.js | 37 +++++++
.../dstr-named-dflt-obj-ptrn-prop-ary.js | 44 +++++++++
...amed-dflt-obj-ptrn-prop-id-init-skipped.js | 59 ++++++++++++
.../dstr-named-dflt-obj-ptrn-prop-id-init.js | 40 ++++++++
...ed-dflt-obj-ptrn-prop-id-trailing-comma.js | 41 ++++++++
.../dstr-named-dflt-obj-ptrn-prop-id.js | 40 ++++++++
.../dstr-named-dflt-obj-ptrn-prop-obj-init.js | 46 +++++++++
.../dstr-named-dflt-obj-ptrn-prop-obj.js | 44 +++++++++
.../dstr-named-dflt-obj-ptrn-rest-getter.js | 38 ++++++++
...str-named-dflt-obj-ptrn-rest-nested-obj.js | 35 +++++++
...amed-dflt-obj-ptrn-rest-obj-nested-rest.js | 45 +++++++++
...med-dflt-obj-ptrn-rest-obj-own-property.js | 36 +++++++
...-dflt-obj-ptrn-rest-skip-non-enumerable.js | 44 +++++++++
.../dstr-named-dflt-obj-ptrn-rest-val-obj.js | 43 +++++++++
.../dstr-named-obj-ptrn-empty.js | 42 ++++++++
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.../dstr-ary-ptrn-rest-obj-id.js | 41 ++++++++
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.../dstr-dflt-ary-ptrn-rest-obj-id.js | 41 ++++++++
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...str-dflt-obj-ptrn-id-init-fn-name-class.js | 43 +++++++++
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.../dstr-dflt-obj-ptrn-id-init-fn-name-fn.js | 42 ++++++++
.../dstr-dflt-obj-ptrn-id-init-fn-name-gen.js | 42 ++++++++
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...r-dflt-obj-ptrn-prop-ary-trailing-comma.js | 35 +++++++
.../dstr-dflt-obj-ptrn-prop-ary.js | 42 ++++++++
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.../dstr-dflt-obj-ptrn-prop-id-init.js | 38 ++++++++
...tr-dflt-obj-ptrn-prop-id-trailing-comma.js | 39 ++++++++
.../dstr-dflt-obj-ptrn-prop-id.js | 38 ++++++++
.../dstr-dflt-obj-ptrn-prop-obj-init.js | 44 +++++++++
.../dstr-dflt-obj-ptrn-prop-obj.js | 42 ++++++++
.../dstr-dflt-obj-ptrn-rest-getter.js | 36 +++++++
.../dstr-dflt-obj-ptrn-rest-nested-obj.js | 33 +++++++
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...str-dflt-obj-ptrn-rest-obj-own-property.js | 34 +++++++
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.../dstr-obj-ptrn-id-init-fn-name-arrow.js | 41 ++++++++
.../dstr-obj-ptrn-id-init-fn-name-class.js | 43 +++++++++
.../dstr-obj-ptrn-id-init-fn-name-cover.js | 42 ++++++++
.../dstr-obj-ptrn-id-init-fn-name-fn.js | 42 ++++++++
.../dstr-obj-ptrn-id-init-fn-name-gen.js | 42 ++++++++
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...nc-gen-meth-static-obj-ptrn-rest-getter.js | 62 ++++++++++++
...en-meth-static-obj-ptrn-rest-nested-obj.js | 59 ++++++++++++
...th-static-obj-ptrn-rest-obj-nested-rest.js | 69 +++++++++++++
...h-static-obj-ptrn-rest-obj-own-property.js | 60 ++++++++++++
...tatic-obj-ptrn-rest-skip-non-enumerable.js | 68 +++++++++++++
...c-gen-meth-static-obj-ptrn-rest-val-obj.js | 67 +++++++++++++
1088 files changed, 63440 insertions(+)
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create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-obj.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-getter.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-nested-obj.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-obj-nested-rest.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-obj-own-property.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-skip-non-enumerable.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-val-obj.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-empty.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-arrow.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-class.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-cover.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-fn.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-gen.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-skipped.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-trailing-comma.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary-init.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary-trailing-comma.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-init-skipped.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-init.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-trailing-comma.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-id.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-obj-init.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-obj.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-getter.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-nested-obj.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-obj-nested-rest.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-obj-own-property.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-skip-non-enumerable.js
create mode 100644 test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-val-obj.js
diff --git a/test/language/expressions/async-generator/dstr-ary-init-iter-close.js b/test/language/expressions/async-generator/dstr-ary-init-iter-close.js
new file mode 100644
index 0000000000..ba461d82f0
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-init-iter-close.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = async function*([x]) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+};
+
+f(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-init-iter-no-close.js b/test/language/expressions/async-generator/dstr-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..d86532d87e
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-init-iter-no-close.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+
+var callCount = 0;
+var f;
+f = async function*([x]) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+};
+
+f(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-name-iter-val.js b/test/language/expressions/async-generator/dstr-ary-name-iter-val.js
new file mode 100644
index 0000000000..499de0116a
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-name-iter-val.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: SingleNameBinding with normal value iteration (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([x, y, z]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..eea31a9237
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([[x, y, z] = [4, 5, 6]]) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..c6eebf4c37
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([[x, y, z] = [4, 5, 6]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+};
+
+f([[7, 8, 9]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..4766ead717
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+
+var callCount = 0;
+var f;
+f = async function*([[,] = g()]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..7a3e8c8062
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+
+var callCount = 0;
+var f;
+f = async function*([[,] = g()]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+};
+
+f([[]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..e467b90ae5
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+
+var callCount = 0;
+var f;
+f = async function*([[] = function() { initCount += 1; return iter; }()]) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..fbadf98513
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+
+var callCount = 0;
+var f;
+f = async function*([[] = function() { initCount += 1; }()]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f([[23]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..c7bc031e09
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+
+var callCount = 0;
+var f;
+f = async function*([[...x] = values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..67152696b9
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+
+var callCount = 0;
+var f;
+f = async function*([[...x] = function() { initCount += 1; }()]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f([values]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..234b837c9c
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Destructuring initializer with an exhausted iterator (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([x = 23]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..65ff61312c
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([arrow = () => {}]) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..eb6d842856
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }]) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..802ef044a9
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([cover = (function () {}), xCover = (0, function() {})]) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..228b817cff
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([fn = function () {}, xFn = function x() {}]) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..944929879a
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([gen = function* () {}, xGen = function* x() {}]) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..0c344d82ed
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Destructuring initializer with a "hole" (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([x = 23]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+};
+
+f([,]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..99049e281c
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+
+var callCount = 0;
+var f;
+f = async function*([w = counter(), x = counter(), y = counter(), z = counter()]) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f([null, 0, false, '']).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..3cbda93d34
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Destructuring initializer with an undefined value (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([x = 23]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f([undefined]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..e031bd113b
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: SingleNameBinding when value iteration completes (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([x]) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..f52c076ddd
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([_, x]) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..1708ece4a0
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([x, y, z]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..f03a02917a
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([{ x, y, z } = { x: 44, y: 55, z: 66 }]) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-obj-id.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..2cde7d069a
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([{ x, y, z } = { x: 44, y: 55, z: 66 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+};
+
+f([{ x: 11, y: 22, z: 33 }]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..962719c17a
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }]) {
+ assert.sameValue(v, 444);
+ assert.sameValue(x, 555);
+ assert.sameValue(z, 666);
+
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..51f2765c69
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = async function*([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }]) {
+ 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([{ u: 777, w: 888, y: 999 }]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elision-exhausted.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..89b330aa6c
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Elision accepts exhausted iterator (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+
+var callCount = 0;
+var f;
+f = async function*([,]) {
+
+ callCount = callCount + 1;
+};
+
+f(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-elision.js b/test/language/expressions/async-generator/dstr-ary-ptrn-elision.js
new file mode 100644
index 0000000000..9c6a167c42
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-elision.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Elision advances iterator (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+
+var callCount = 0;
+var f;
+f = async function*([,]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f(g()).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-empty.js b/test/language/expressions/async-generator/dstr-ary-ptrn-empty.js
new file mode 100644
index 0000000000..513938bc4d
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-empty.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+
+var callCount = 0;
+var f;
+f = async function*([]) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+};
+
+f(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-rest-ary-elem.js b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..3c43df5608
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Rest element containing an array BindingElementList pattern (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = async function*([...[x, y, z]]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+};
+
+f([3, 4, 5]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-rest-ary-elision.js b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..598074ff3f
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Rest element containing an elision (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = async function*([...[,]]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+};
+
+f(g()).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-rest-ary-empty.js b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..0826952b5d
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Rest element containing an "empty" array pattern (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+
+var callCount = 0;
+var f;
+f = async function*([...[]]) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+};
+
+f(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-rest-ary-rest.js b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..e92b336c14
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Rest element containing a rest element (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+
+var callCount = 0;
+var f;
+f = async function*([...[...x]]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+};
+
+f(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-rest-id-elision.js b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..777cb98cd7
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Rest element following elision elements (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+
+var callCount = 0;
+var f;
+f = async function*([ , , ...x]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..629393e194
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: RestElement applied to an exhausted iterator (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([, , ...x]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+};
+
+f([1, 2]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-rest-id.js b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..310b819baa
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-id.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Lone rest element (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+
+var callCount = 0;
+var f;
+f = async function*([...x]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-rest-init-ary.js b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..a2f2a7215f
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([...[ x ] = []]) {
+
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-rest-init-id.js b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..a8d252bab6
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-init-id.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Reset element (identifier) does not support initializer (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([...x = []]) {
+
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-rest-init-obj.js b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..21dc82f665
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([...{ x } = []]) {
+
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..0cb4c8e8d5
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([...[x], y]) {
+
+ callCount = callCount + 1;
+};
+
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-rest-not-final-id.js b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..d523387fd0
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Rest element (identifier) may not be followed by any element (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([...x, y]) {
+
+ callCount = callCount + 1;
+};
+
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..4fb1b78810
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([...{ x }, y]) {
+
+ callCount = callCount + 1;
+};
+
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-rest-obj-id.js b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..1eb76bee63
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Rest element containing an object binding pattern (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([...{ length }]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+};
+
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..d4fd7cb2fe
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Rest element containing an object binding pattern (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([...{ 0: v, 1: w, 2: x, 3: y, length: z }]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+};
+
+f([7, 8, 9]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-init-iter-close.js b/test/language/expressions/async-generator/dstr-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..e966ce5891
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-init-iter-close.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+
+var callCount = 0;
+var f;
+f = async function*([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-init-iter-no-close.js b/test/language/expressions/async-generator/dstr-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..dfb9dc9676
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+
+var callCount = 0;
+var f;
+f = async function*([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-name-iter-val.js b/test/language/expressions/async-generator/dstr-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..288df23bfa
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-name-iter-val.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..1001f14112
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..dbe29a4640
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..b2c5d08638
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+
+var callCount = 0;
+var f;
+f = async function*([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..c4c865a703
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+
+var callCount = 0;
+var f;
+f = async function*([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..fc559bcfc1
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+
+var callCount = 0;
+var f;
+f = async function*([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..fac6ae4e58
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+
+var callCount = 0;
+var f;
+f = async function*([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..c7decc0f90
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+
+var callCount = 0;
+var f;
+f = async function*([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..46f0bc0b62
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+
+var callCount = 0;
+var f;
+f = async function*([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..d5ca7e62cc
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..d488959a34
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..6cd170d20f
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..5f3bded604
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..e2985313e3
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..8a96e50a77
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..5f4197b717
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..8e26f280c5
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+
+var callCount = 0;
+var f;
+f = async function*([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..8e36e3fd8a
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..b2fd3381d6
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..9985160185
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..57b5d63599
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = async function*([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..e5b5589e77
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..938f844d84
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..0b0ac87f41
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = async 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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..aae5883802
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = async 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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..e29cea22c5
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Elision accepts exhausted iterator (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+
+var callCount = 0;
+var f;
+f = async function*([,] = iter) {
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elision.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..8f6e7e5739
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-elision.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Elision advances iterator (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+
+var callCount = 0;
+var f;
+f = async function*([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-empty.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..f661e0cc61
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-empty.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+
+var callCount = 0;
+var f;
+f = async function*([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..774e284564
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = async function*([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..8917f1e348
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Rest element containing an elision (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = async function*([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..9d7d8573ab
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+
+var callCount = 0;
+var f;
+f = async function*([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..e2948a7c6b
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Rest element containing a rest element (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+
+var callCount = 0;
+var f;
+f = async function*([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..b100baa90e
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Rest element following elision elements (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+
+var callCount = 0;
+var f;
+f = async function*([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..f56afb87a9
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-id.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..77d3894cd9
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Lone rest element (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+
+var callCount = 0;
+var f;
+f = async function*([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..fadd8c7e78
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..8c63a78e21
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([...x = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..60b24fb978
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..a767c963ad
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..af8fc48d7d
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..c055c14302
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..5cf0342f80
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Rest element containing an object binding pattern (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..ac09037c40
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Rest element containing an object binding pattern (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-empty.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..edda21b43f
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-empty.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+
+var callCount = 0;
+var f;
+f = async function*({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..f0374bbda8
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..fd457153bb
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..d9b4190765
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..76bfa748b4
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..efc10e9170
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..6bf59018e7
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,47 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+
+var callCount = 0;
+var f;
+f = async function*({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..65e480d47e
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..a0008a691b
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..578a772d62
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..f53b8489f6
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..ad2572a8a0
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+
+var callCount = 0;
+var f;
+f = async function*({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() } = { s: null, u: 0, w: false, y: '' }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..bebdf9055e
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,40 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..5fcf4c2985
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-id.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..1156dd09cb
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,40 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Binding as specified via property name and identifier (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..ea16f611d5
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..60e1c0eb47
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-getter.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..a37a15a0ac
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-getter.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var count = 0;
+
+
+var callCount = 0;
+var f;
+f = async function*({...x} = { get v() { count++; return 2; } }) {
+ assert.sameValue(x.v, 2);
+ assert.sameValue(count, 1);
+
+ verifyEnumerable(x, "v");
+ verifyWritable(x, "v");
+ verifyConfigurable(x, "v");
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-nested-obj.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-nested-obj.js
new file mode 100644
index 0000000000..d176cbdf46
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-nested-obj.js
@@ -0,0 +1,35 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-nested-obj.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var obj = {a: 3, b: 4};
+
+
+var callCount = 0;
+var f;
+f = async function*({a, b, ...{c, e}} = {a: 1, b: 2, c: 3, d: 4, e: 5}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+ assert.sameValue(e, 5);
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-obj-nested-rest.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-obj-nested-rest.js
new file mode 100644
index 0000000000..2f8f46f414
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-obj-nested-rest.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-nested-rest.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment and object rest desconstruction is allowed in that case. (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({a, b, ...{c, ...rest}} = {a: 1, b: 2, c: 3, d: 4, e: 5}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+
+ assert.sameValue(rest.d, 4);
+ assert.sameValue(rest.e, 5);
+
+ verifyEnumerable(rest, "d");
+ verifyWritable(rest, "d");
+ verifyConfigurable(rest, "d");
+
+ verifyEnumerable(rest, "e");
+ verifyWritable(rest, "e");
+ verifyConfigurable(rest, "e");
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-obj-own-property.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-obj-own-property.js
new file mode 100644
index 0000000000..442ec11e55
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-obj-own-property.js
@@ -0,0 +1,36 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-own-property.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Rest object contains just soruce object's own properties (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = Object.create({ x: 1, y: 2 });
+o.z = 3;
+
+
+var callCount = 0;
+var f;
+f = async function*({ x, ...{y , z} } = o) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-skip-non-enumerable.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..9c7159b5c0
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+
+var callCount = 0;
+var f;
+f = async function*({...rest} = o) {
+ assert.sameValue(rest.a, 3);
+ assert.sameValue(rest.b, 4);
+ assert.sameValue(rest.x, undefined);
+
+ verifyEnumerable(rest, "a");
+ verifyWritable(rest, "a");
+ verifyConfigurable(rest, "a");
+
+ verifyEnumerable(rest, "b");
+ verifyWritable(rest, "b");
+ verifyConfigurable(rest, "b");
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-val-obj.js b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..2641719212
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-dflt-obj-ptrn-rest-val-obj.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/async-gen-func-expr-dflt.template
+/*---
+description: Rest object contains just unextracted data (async generator function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({a, b, ...rest} = {x: 1, y: 2, a: 5, b: 3}) {
+ assert.sameValue(rest.x, 1);
+ assert.sameValue(rest.y, 2);
+ assert.sameValue(rest.a, undefined);
+ assert.sameValue(rest.b, undefined);
+
+ verifyEnumerable(rest, "x");
+ verifyWritable(rest, "x");
+ verifyConfigurable(rest, "x");
+
+ verifyEnumerable(rest, "y");
+ verifyWritable(rest, "y");
+ verifyConfigurable(rest, "y");
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-init-iter-close.js b/test/language/expressions/async-generator/dstr-named-ary-init-iter-close.js
new file mode 100644
index 0000000000..c492a039e3
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-init-iter-close.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+
+var callCount = 0;
+var f;
+f = async function* g([x]) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+};
+
+f(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-init-iter-no-close.js b/test/language/expressions/async-generator/dstr-named-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..b4ef60a6fd
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-init-iter-no-close.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+
+var callCount = 0;
+var f;
+f = async function* g([x]) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+};
+
+f(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-name-iter-val.js b/test/language/expressions/async-generator/dstr-named-ary-name-iter-val.js
new file mode 100644
index 0000000000..d4237ac76d
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-name-iter-val.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: SingleNameBinding with normal value iteration (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([x, y, z]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..43fcbaf45d
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([[x, y, z] = [4, 5, 6]]) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..0c00558e71
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([[x, y, z] = [4, 5, 6]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+};
+
+f([[7, 8, 9]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..62af41cba5
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+
+var callCount = 0;
+var f;
+f = async function* g([[,] = g()]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..4ce7bf5652
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+
+var callCount = 0;
+var f;
+f = async function* g([[,] = g()]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+};
+
+f([[]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..4eb1851f92
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+
+var callCount = 0;
+var f;
+f = async function* g([[] = function() { initCount += 1; return iter; }()]) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..ec796c01dd
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+
+var callCount = 0;
+var f;
+f = async function* g([[] = function() { initCount += 1; }()]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f([[23]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..d2484801a5
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+
+var callCount = 0;
+var f;
+f = async function* g([[...x] = values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..791b302e31
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+
+var callCount = 0;
+var f;
+f = async function* g([[...x] = function() { initCount += 1; }()]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f([values]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..63552a2501
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Destructuring initializer with an exhausted iterator (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([x = 23]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..55071488ab
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([arrow = () => {}]) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..a3c35ed419
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }]) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..bc6791e05b
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([cover = (function () {}), xCover = (0, function() {})]) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..a96c4cfdc7
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([fn = function () {}, xFn = function x() {}]) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..9dd4f15587
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([gen = function* () {}, xGen = function* x() {}]) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..bde0d44d0e
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Destructuring initializer with a "hole" (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([x = 23]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+};
+
+f([,]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..454d8be993
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+
+var callCount = 0;
+var f;
+f = async function* g([w = counter(), x = counter(), y = counter(), z = counter()]) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f([null, 0, false, '']).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..ca450f0f54
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Destructuring initializer with an undefined value (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([x = 23]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f([undefined]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..903604376c
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: SingleNameBinding when value iteration completes (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([x]) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..1ff6a6c033
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([_, x]) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..38d24244b4
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 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 = async function* g([x, y, z]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..ca5184f1ab
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([{ x, y, z } = { x: 44, y: 55, z: 66 }]) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-obj-id.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..387631336d
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([{ x, y, z } = { x: 44, y: 55, z: 66 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+};
+
+f([{ x: 11, y: 22, z: 33 }]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..29cd75b50a
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 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 = async function* g([{ 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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..9cff313ff2
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 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 = async function* g([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }]) {
+ 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([{ u: 777, w: 888, y: 999 }]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elision-exhausted.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..6e093ab12d
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Elision accepts exhausted iterator (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+
+var callCount = 0;
+var f;
+f = async function* g([,]) {
+
+ callCount = callCount + 1;
+};
+
+f(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-elision.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elision.js
new file mode 100644
index 0000000000..721d4f7dda
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-elision.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Elision advances iterator (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+
+var callCount = 0;
+var f;
+f = async function* g([,]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f(g()).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-empty.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-empty.js
new file mode 100644
index 0000000000..6a97bf2207
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-empty.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+
+var callCount = 0;
+var f;
+f = async function* g([]) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+};
+
+f(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-ary-elem.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..d8d4782e71
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Rest element containing an array BindingElementList pattern (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 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 = async function* g([...[x, y, z]]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+};
+
+f([3, 4, 5]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-ary-elision.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..4523ec4d4c
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Rest element containing an elision (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 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 = async function* g([...[,]]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+};
+
+f(g()).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-ary-empty.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..fa464b8ce0
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Rest element containing an "empty" array pattern (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+
+var callCount = 0;
+var f;
+f = async function* g([...[]]) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+};
+
+f(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-ary-rest.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..d846b87c10
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Rest element containing a rest element (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+
+var callCount = 0;
+var f;
+f = async function* g([...[...x]]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+};
+
+f(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-id-elision.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..8b1e80646a
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Rest element following elision elements (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+
+var callCount = 0;
+var f;
+f = async function* g([ , , ...x]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..7ed4bda840
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: RestElement applied to an exhausted iterator (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([, , ...x]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+};
+
+f([1, 2]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-id.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..fe8fc09850
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-id.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Lone rest element (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+
+var callCount = 0;
+var f;
+f = async function* g([...x]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-init-ary.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..1f373de273
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([...[ x ] = []]) {
+
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-init-id.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..8d4502d042
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-init-id.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Reset element (identifier) does not support initializer (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([...x = []]) {
+
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-init-obj.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..0ea051975d
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([...{ x } = []]) {
+
+ callCount = callCount + 1;
+};
+
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..fd29d569c6
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([...[x], y]) {
+
+ callCount = callCount + 1;
+};
+
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-not-final-id.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..fbbe220627
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Rest element (identifier) may not be followed by any element (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([...x, y]) {
+
+ callCount = callCount + 1;
+};
+
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..a72c7c6377
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([...{ x }, y]) {
+
+ callCount = callCount + 1;
+};
+
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-obj-id.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..7fa97b64c3
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Rest element containing an object binding pattern (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([...{ length }]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+};
+
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..e3ba1e9949
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Rest element containing an object binding pattern (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([...{ 0: v, 1: w, 2: x, 3: y, length: z }]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+};
+
+f([7, 8, 9]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-init-iter-close.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..e7b655f606
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-init-iter-close.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+
+var callCount = 0;
+var f;
+f = async function* g([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-init-iter-no-close.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..6fcb36404a
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+
+var callCount = 0;
+var f;
+f = async function* g([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-name-iter-val.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..6713809acc
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-name-iter-val.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 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 = async function* g([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..40effb6ae6
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..35c0ff453f
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..086f2610b7
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+
+var callCount = 0;
+var f;
+f = async function* g([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..c3d89adcd9
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+
+var callCount = 0;
+var f;
+f = async function* g([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..59071d0b15
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+
+var callCount = 0;
+var f;
+f = async function* g([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..cc12ea7320
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+
+var callCount = 0;
+var f;
+f = async function* g([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..ccb51fc5a8
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+
+var callCount = 0;
+var f;
+f = async function* g([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..6088959a53
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 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 = async function* g([[...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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..8d79c8c074
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..21f0bdf38c
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..a2c4c507d3
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,46 @@
+// 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/async-gen-func-named-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 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 = async function* g([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..0209d35514
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..5d4e9fadc7
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..b4d0443a25
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..5bf7f3c7f0
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..1b4c934254
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+
+var callCount = 0;
+var f;
+f = async function* g([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..23148fcad6
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..1d3d3cd6c2
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..ce7dc34880
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..26ea236e42
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 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 = async function* g([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..001137991b
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..da3fd02aad
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..39e9fbff9a
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 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 = async function* g([{ 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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..1c72686cdb
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 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 = async function* g([{ 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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..dc3fbbfca6
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Elision accepts exhausted iterator (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+
+var callCount = 0;
+var f;
+f = async function* g([,] = iter) {
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elision.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..c1f3309fc9
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-elision.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Elision advances iterator (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 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 = async function* g([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-empty.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..38e75ffcbf
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-empty.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+
+var callCount = 0;
+var f;
+f = async function* g([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..a73aa10625
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 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 = async function* g([...[x, y, z]] = [3, 4, 5]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..99f68ef432
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Rest element containing an elision (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 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 = async function* g([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..7076d3f1f4
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+
+var callCount = 0;
+var f;
+f = async function* g([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..591ff84411
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Rest element containing a rest element (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+
+var callCount = 0;
+var f;
+f = async function* g([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..54899439bb
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Rest element following elision elements (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+
+var callCount = 0;
+var f;
+f = async function* g([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..35ab0e8e31
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-id.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..d3931178be
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Lone rest element (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+
+var callCount = 0;
+var f;
+f = async function* g([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..2b6a541570
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..f081466ebf
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([...x = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..7482c06bbd
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..f164096a5f
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..65b0bc7fec
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..06a0b81650
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..396ced753e
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Rest element containing an object binding pattern (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..d81c63c00f
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Rest element containing an object binding pattern (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-empty.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..22f93fe4f7
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-empty.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+
+var callCount = 0;
+var f;
+f = async function* g({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..920bfb3ffd
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..6a3ab9abd2
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..9fbc293b81
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..0fa23abdbc
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..2ba403e6e0
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..6e8bab67aa
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,47 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+
+var callCount = 0;
+var f;
+f = async function* g({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..542751c921
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..623126eeb7
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..cd709a72c4
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..339cb40412
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..8311292549
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 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 = async function* g({ 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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..bac87d8b2a
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,40 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..120c8864cc
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-id.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..ad446cbfbe
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,40 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Binding as specified via property name and identifier (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..5d3c841189
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..5213fdbd46
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-getter.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..d24fc34c63
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-getter.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+---*/
+var count = 0;
+
+
+var callCount = 0;
+var f;
+f = async function* g({...x} = { get v() { count++; return 2; } }) {
+ assert.sameValue(x.v, 2);
+ assert.sameValue(count, 1);
+
+ verifyEnumerable(x, "v");
+ verifyWritable(x, "v");
+ verifyConfigurable(x, "v");
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-nested-obj.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-nested-obj.js
new file mode 100644
index 0000000000..8deb75ad0a
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-nested-obj.js
@@ -0,0 +1,35 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-nested-obj.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+---*/
+var obj = {a: 3, b: 4};
+
+
+var callCount = 0;
+var f;
+f = async function* g({a, b, ...{c, e}} = {a: 1, b: 2, c: 3, d: 4, e: 5}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+ assert.sameValue(e, 5);
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-obj-nested-rest.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-obj-nested-rest.js
new file mode 100644
index 0000000000..214120a141
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-obj-nested-rest.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-nested-rest.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment and object rest desconstruction is allowed in that case. (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({a, b, ...{c, ...rest}} = {a: 1, b: 2, c: 3, d: 4, e: 5}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+
+ assert.sameValue(rest.d, 4);
+ assert.sameValue(rest.e, 5);
+
+ verifyEnumerable(rest, "d");
+ verifyWritable(rest, "d");
+ verifyConfigurable(rest, "d");
+
+ verifyEnumerable(rest, "e");
+ verifyWritable(rest, "e");
+ verifyConfigurable(rest, "e");
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-obj-own-property.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-obj-own-property.js
new file mode 100644
index 0000000000..8530eb6935
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-obj-own-property.js
@@ -0,0 +1,36 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-own-property.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Rest object contains just soruce object's own properties (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+---*/
+var o = Object.create({ x: 1, y: 2 });
+o.z = 3;
+
+
+var callCount = 0;
+var f;
+f = async function* g({ x, ...{y , z} } = o) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-skip-non-enumerable.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..0934e60b84
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+
+var callCount = 0;
+var f;
+f = async function* g({...rest} = o) {
+ assert.sameValue(rest.a, 3);
+ assert.sameValue(rest.b, 4);
+ assert.sameValue(rest.x, undefined);
+
+ verifyEnumerable(rest, "a");
+ verifyWritable(rest, "a");
+ verifyConfigurable(rest, "a");
+
+ verifyEnumerable(rest, "b");
+ verifyWritable(rest, "b");
+ verifyConfigurable(rest, "b");
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-val-obj.js b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..30b2aafe13
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-dflt-obj-ptrn-rest-val-obj.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/async-gen-func-named-expr-dflt.template
+/*---
+description: Rest object contains just unextracted data (async generator named function expression (default parameter))
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({a, b, ...rest} = {x: 1, y: 2, a: 5, b: 3}) {
+ assert.sameValue(rest.x, 1);
+ assert.sameValue(rest.y, 2);
+ assert.sameValue(rest.a, undefined);
+ assert.sameValue(rest.b, undefined);
+
+ verifyEnumerable(rest, "x");
+ verifyWritable(rest, "x");
+ verifyConfigurable(rest, "x");
+
+ verifyEnumerable(rest, "y");
+ verifyWritable(rest, "y");
+ verifyConfigurable(rest, "y");
+
+ callCount = callCount + 1;
+};
+
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-empty.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-empty.js
new file mode 100644
index 0000000000..2a64471d76
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-empty.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+
+var callCount = 0;
+var f;
+f = async function* g({}) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+};
+
+f(obj).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..dce02d4347
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ arrow = () => {} }) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..cc09344708
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } }) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+};
+
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..f9d138ed1f
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ cover = (function () {}), xCover = (0, function() {}) }) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..8aa56d73fe
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ fn = function () {}, xFn = function x() {} }) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..4cbb3a83f4
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ gen = function* () {}, xGen = function* x() {} }) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-skipped.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..0dc3982ea7
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,47 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+
+var callCount = 0;
+var f;
+f = async function* g({ w = counter(), x = counter(), y = counter(), z = counter() }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f({ w: null, x: 0, y: false, z: '' }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-trailing-comma.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..7e323eba8f
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ x, }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-ary-init.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..3551c495ce
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ w: [x, y, z] = [4, 5, 6] }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..b15620034d
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ x: [y], }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+};
+
+f({ x: [45] }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-ary.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..bee5b84e0c
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-ary.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ w: [x, y, z] = [4, 5, 6] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f({ w: [7, undefined, ] }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..51a9d5ba18
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 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 = async function* g({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() }) {
+ 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({ s: null, u: 0, w: false, y: '' }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-id-init.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..2a8c400916
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-id-init.js
@@ -0,0 +1,40 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ x: y = 33 }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f({ }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..1ab068c14a
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ x: y, }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-id.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..44ceddf56a
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-id.js
@@ -0,0 +1,40 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Binding as specified via property name and identifier (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ x: y }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-obj-init.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..a9ecbeb6e2
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f({ w: undefined }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-obj.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..fba95b709d
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-prop-obj.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f({ w: { x: undefined, z: 7 } }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-getter.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..331f833336
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-getter.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+---*/
+var count = 0;
+
+
+var callCount = 0;
+var f;
+f = async function* g({...x}) {
+ assert.sameValue(x.v, 2);
+ assert.sameValue(count, 1);
+
+ verifyEnumerable(x, "v");
+ verifyWritable(x, "v");
+ verifyConfigurable(x, "v");
+
+ callCount = callCount + 1;
+};
+
+f({ get v() { count++; return 2; } }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-nested-obj.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-nested-obj.js
new file mode 100644
index 0000000000..73cdc466a5
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-nested-obj.js
@@ -0,0 +1,35 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-nested-obj.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+---*/
+var obj = {a: 3, b: 4};
+
+
+var callCount = 0;
+var f;
+f = async function* g({a, b, ...{c, e}}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+ assert.sameValue(e, 5);
+
+ callCount = callCount + 1;
+};
+
+f({a: 1, b: 2, c: 3, d: 4, e: 5}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-obj-nested-rest.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-obj-nested-rest.js
new file mode 100644
index 0000000000..3e499172ee
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-obj-nested-rest.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-nested-rest.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment and object rest desconstruction is allowed in that case. (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({a, b, ...{c, ...rest}}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+
+ assert.sameValue(rest.d, 4);
+ assert.sameValue(rest.e, 5);
+
+ verifyEnumerable(rest, "d");
+ verifyWritable(rest, "d");
+ verifyConfigurable(rest, "d");
+
+ verifyEnumerable(rest, "e");
+ verifyWritable(rest, "e");
+ verifyConfigurable(rest, "e");
+
+ callCount = callCount + 1;
+};
+
+f({a: 1, b: 2, c: 3, d: 4, e: 5}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-obj-own-property.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-obj-own-property.js
new file mode 100644
index 0000000000..33ff58b906
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-obj-own-property.js
@@ -0,0 +1,36 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-own-property.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Rest object contains just soruce object's own properties (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+---*/
+var o = Object.create({ x: 1, y: 2 });
+o.z = 3;
+
+
+var callCount = 0;
+var f;
+f = async function* g({ x, ...{y , z} }) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ callCount = callCount + 1;
+};
+
+f(o).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-skip-non-enumerable.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..074e85de5a
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+
+var callCount = 0;
+var f;
+f = async function* g({...rest}) {
+ assert.sameValue(rest.a, 3);
+ assert.sameValue(rest.b, 4);
+ assert.sameValue(rest.x, undefined);
+
+ verifyEnumerable(rest, "a");
+ verifyWritable(rest, "a");
+ verifyConfigurable(rest, "a");
+
+ verifyEnumerable(rest, "b");
+ verifyWritable(rest, "b");
+ verifyConfigurable(rest, "b");
+
+ callCount = callCount + 1;
+};
+
+f(o).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-val-obj.js b/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..789ae2c0b9
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-named-obj-ptrn-rest-val-obj.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/async-gen-func-named-expr.template
+/*---
+description: Rest object contains just unextracted data (async generator named function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 7. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, funcEnv, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function* g({a, b, ...rest}) {
+ assert.sameValue(rest.x, 1);
+ assert.sameValue(rest.y, 2);
+ assert.sameValue(rest.a, undefined);
+ assert.sameValue(rest.b, undefined);
+
+ verifyEnumerable(rest, "x");
+ verifyWritable(rest, "x");
+ verifyConfigurable(rest, "x");
+
+ verifyEnumerable(rest, "y");
+ verifyWritable(rest, "y");
+ verifyConfigurable(rest, "y");
+
+ callCount = callCount + 1;
+};
+
+f({x: 1, y: 2, a: 5, b: 3}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-empty.js b/test/language/expressions/async-generator/dstr-obj-ptrn-empty.js
new file mode 100644
index 0000000000..240160001f
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-empty.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+
+var callCount = 0;
+var f;
+f = async function*({}) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+};
+
+f(obj).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..84f6a329db
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ arrow = () => {} }) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..d8f998ed24
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } }) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+};
+
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..ee03204628
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ cover = (function () {}), xCover = (0, function() {}) }) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..bd85796993
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ fn = function () {}, xFn = function x() {} }) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..a822663727
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ gen = function* () {}, xGen = function* x() {} }) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-skipped.js b/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..7b5b423d1a
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,47 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+
+var callCount = 0;
+var f;
+f = async function*({ w = counter(), x = counter(), y = counter(), z = counter() }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+
+f({ w: null, x: 0, y: false, z: '' }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-id-trailing-comma.js b/test/language/expressions/async-generator/dstr-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..7d79ef0026
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ x, }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+
+f({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-prop-ary-init.js b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..ffcfcb494f
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ w: [x, y, z] = [4, 5, 6] }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..4276cc0ec5
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ x: [y], }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+};
+
+f({ x: [45] }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-prop-ary.js b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..0dfe5903cd
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-ary.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ w: [x, y, z] = [4, 5, 6] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f({ w: [7, undefined, ] }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..35cf7f857e
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+
+var callCount = 0;
+var f;
+f = async function*({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+
+f({ s: null, u: 0, w: false, y: '' }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-prop-id-init.js b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..8e3a18b457
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-id-init.js
@@ -0,0 +1,40 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ x: y = 33 }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f({ }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..8d8c17ac44
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ x: y, }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-prop-id.js b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..2759f84156
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-id.js
@@ -0,0 +1,40 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Binding as specified via property name and identifier (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ x: y }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+
+f({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-prop-obj-init.js b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..7351870286
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f({ w: undefined }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-prop-obj.js b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..3a3ecab45e
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-prop-obj.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+
+f({ w: { x: undefined, z: 7 } }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-rest-getter.js b/test/language/expressions/async-generator/dstr-obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..51cdb21924
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-rest-getter.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var count = 0;
+
+
+var callCount = 0;
+var f;
+f = async function*({...x}) {
+ assert.sameValue(x.v, 2);
+ assert.sameValue(count, 1);
+
+ verifyEnumerable(x, "v");
+ verifyWritable(x, "v");
+ verifyConfigurable(x, "v");
+
+ callCount = callCount + 1;
+};
+
+f({ get v() { count++; return 2; } }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-rest-nested-obj.js b/test/language/expressions/async-generator/dstr-obj-ptrn-rest-nested-obj.js
new file mode 100644
index 0000000000..1f15a4c4a6
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-rest-nested-obj.js
@@ -0,0 +1,35 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-nested-obj.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var obj = {a: 3, b: 4};
+
+
+var callCount = 0;
+var f;
+f = async function*({a, b, ...{c, e}}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+ assert.sameValue(e, 5);
+
+ callCount = callCount + 1;
+};
+
+f({a: 1, b: 2, c: 3, d: 4, e: 5}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-rest-obj-nested-rest.js b/test/language/expressions/async-generator/dstr-obj-ptrn-rest-obj-nested-rest.js
new file mode 100644
index 0000000000..485bca78b1
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-rest-obj-nested-rest.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-nested-rest.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment and object rest desconstruction is allowed in that case. (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({a, b, ...{c, ...rest}}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+
+ assert.sameValue(rest.d, 4);
+ assert.sameValue(rest.e, 5);
+
+ verifyEnumerable(rest, "d");
+ verifyWritable(rest, "d");
+ verifyConfigurable(rest, "d");
+
+ verifyEnumerable(rest, "e");
+ verifyWritable(rest, "e");
+ verifyConfigurable(rest, "e");
+
+ callCount = callCount + 1;
+};
+
+f({a: 1, b: 2, c: 3, d: 4, e: 5}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-rest-obj-own-property.js b/test/language/expressions/async-generator/dstr-obj-ptrn-rest-obj-own-property.js
new file mode 100644
index 0000000000..a7df802e33
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-rest-obj-own-property.js
@@ -0,0 +1,36 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-own-property.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Rest object contains just soruce object's own properties (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = Object.create({ x: 1, y: 2 });
+o.z = 3;
+
+
+var callCount = 0;
+var f;
+f = async function*({ x, ...{y , z} }) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ callCount = callCount + 1;
+};
+
+f(o).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-rest-skip-non-enumerable.js b/test/language/expressions/async-generator/dstr-obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..c1f2000439
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+
+var callCount = 0;
+var f;
+f = async function*({...rest}) {
+ assert.sameValue(rest.a, 3);
+ assert.sameValue(rest.b, 4);
+ assert.sameValue(rest.x, undefined);
+
+ verifyEnumerable(rest, "a");
+ verifyWritable(rest, "a");
+ verifyConfigurable(rest, "a");
+
+ verifyEnumerable(rest, "b");
+ verifyWritable(rest, "b");
+ verifyConfigurable(rest, "b");
+
+ callCount = callCount + 1;
+};
+
+f(o).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/async-generator/dstr-obj-ptrn-rest-val-obj.js b/test/language/expressions/async-generator/dstr-obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..c473c96b81
--- /dev/null
+++ b/test/language/expressions/async-generator/dstr-obj-ptrn-rest-val-obj.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/async-gen-func-expr.template
+/*---
+description: Rest object contains just unextracted data (async generator function expression)
+esid: sec-asyncgenerator-definitions-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorExpression : async [no LineTerminator here] function * ( FormalParameters ) {
+ AsyncGeneratorBody }
+
+ [...]
+ 3. Let closure be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var f;
+f = async function*({a, b, ...rest}) {
+ assert.sameValue(rest.x, 1);
+ assert.sameValue(rest.y, 2);
+ assert.sameValue(rest.a, undefined);
+ assert.sameValue(rest.b, undefined);
+
+ verifyEnumerable(rest, "x");
+ verifyWritable(rest, "x");
+ verifyConfigurable(rest, "x");
+
+ verifyEnumerable(rest, "y");
+ verifyWritable(rest, "y");
+ verifyConfigurable(rest, "y");
+
+ callCount = callCount + 1;
+};
+
+f({x: 1, y: 2, a: 5, b: 3}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-init-iter-close.js b/test/language/expressions/class/dstr-async-gen-meth-ary-init-iter-close.js
new file mode 100644
index 0000000000..36a8e1c042
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-init-iter-close.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x]) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-init-iter-no-close.js b/test/language/expressions/class/dstr-async-gen-meth-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..4721fd38a1
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-init-iter-no-close.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x]) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-name-iter-val.js b/test/language/expressions/class/dstr-async-gen-meth-ary-name-iter-val.js
new file mode 100644
index 0000000000..ba5907a1e7
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-name-iter-val.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: SingleNameBinding with normal value iteration (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x, y, z]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..be43c3d883
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..abd902dd8e
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[x, y, z] = [4, 5, 6]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([[7, 8, 9]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..31b60c9f9a
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,76 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[,] = g()]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..a9fb1fec06
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,73 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[,] = g()]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([[]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..955c21cf0f
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,71 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[] = function() { initCount += 1; return iter; }()]) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..e6c136cd90
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[] = function() { initCount += 1; }()]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([[23]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..f257312876
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,73 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..577648d905
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,76 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[...x] = function() { initCount += 1; }()]) {
+ 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([values]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..21db37fcd3
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth.template
+/*---
+description: Destructuring initializer with an exhausted iterator (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x = 23]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..ee96db4bab
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([arrow = () => {}]) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..c1c2082e9a
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-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/cls-expr-async-gen-meth.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }]) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..4ab753efed
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([cover = (function () {}), xCover = (0, function() {})]) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..e14a707550
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([fn = function () {}, xFn = function x() {}]) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..35443cf796
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([gen = function* () {}, xGen = function* x() {}]) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..698a6b3ca5
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,64 @@
+// 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-async-gen-meth.template
+/*---
+description: Destructuring initializer with a "hole" (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x = 23]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([,]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..50317451fb
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,73 @@
+// 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-async-gen-meth.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([w = counter(), x = counter(), y = counter(), z = counter()]) {
+ 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([null, 0, false, '']).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..f1f50faa38
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,67 @@
+// 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-async-gen-meth.template
+/*---
+description: Destructuring initializer with an undefined value (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x = 23]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([undefined]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..72991c27c4
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,71 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding when value iteration completes (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x]) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..e9f3df4636
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,66 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([_, x]) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..82b45138c8
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,77 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x, y, z]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..fe6087acfb
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-obj-id.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..910d018c12
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([{ x, y, z } = { x: 44, y: 55, z: 66 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([{ x: 11, y: 22, z: 33 }]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..dd8ed97437
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,79 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..f885023a84
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,79 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }]) {
+ 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([{ u: 777, w: 888, y: 999 }]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elision-exhausted.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..5125b9d76c
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Elision accepts exhausted iterator (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([,]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elision.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elision.js
new file mode 100644
index 0000000000..6bf1561795
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-elision.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Elision advances iterator (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([,]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(g()).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-empty.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-empty.js
new file mode 100644
index 0000000000..9c47369e73
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-empty.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([]) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-ary-elem.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..32de9cf6e8
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Rest element containing an array BindingElementList pattern (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[x, y, z]]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([3, 4, 5]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-ary-elision.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..bf27d4936a
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Rest element containing an elision (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[,]]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(g()).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-ary-empty.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..14a84af801
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Rest element containing an "empty" array pattern (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[]]) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-ary-rest.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..7bef02832c
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Rest element containing a rest element (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[...x]]) {
+ 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(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-id-elision.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..e047d698a0
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Rest element following elision elements (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([ , , ...x]) {
+ 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(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..008b951dc0
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: RestElement applied to an exhausted iterator (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([, , ...x]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([1, 2]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-id.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..a6fd4704cf
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-id.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Lone rest element (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...x]) {
+ 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(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-init-ary.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..18edf05c82
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[ x ] = []]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-init-id.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..8cc3711551
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-init-id.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Reset element (identifier) does not support initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...x = []]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-init-obj.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..7a0ed7f0e8
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...{ x } = []]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..385d7493b8
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,64 @@
+// 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-async-gen-meth.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[x], y]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-not-final-id.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..059bac7c28
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,64 @@
+// 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-async-gen-meth.template
+/*---
+description: Rest element (identifier) may not be followed by any element (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...x, y]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..e2d2d6c34f
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,64 @@
+// 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-async-gen-meth.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...{ x }, y]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-obj-id.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..f807c6fdbf
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Rest element containing an object binding pattern (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...{ length }]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..3163b8bc1b
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,76 @@
+// 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-async-gen-meth.template
+/*---
+description: Rest element containing an object binding pattern (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...{ 0: v, 1: w, 2: x, 3: y, length: z }]) {
+ 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([7, 8, 9]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-init-iter-close.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..27a9cf2332
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-init-iter-close.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-init-iter-no-close.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..eed7371736
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-name-iter-val.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..3dc38f9177
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-name-iter-val.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..4f3e600a9e
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..fbdb77320b
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..be3fc1b9ab
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,76 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..534cdc8ab4
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,73 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..8163e94d18
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,71 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..eabac854f8
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..36950728e9
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,73 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..e62af86f32
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,76 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..ef0862481a
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..50be953f91
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..e141b57341
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-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/cls-expr-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..b1091d6dc1
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..3a69dca1e8
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..357704c8f1
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..0840c48f0f
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,64 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..5ca818894d
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,73 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..cd65a5b222
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,67 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..c14e949291
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,71 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..611cd1b530
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,66 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..39de6a7655
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,77 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..a743254fca
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..5317dcc149
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..8d21068a65
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,79 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..42945ca647
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,79 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..b5cadb5cb2
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Elision accepts exhausted iterator (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elision.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..aebcea6c50
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-elision.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Elision advances iterator (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-empty.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..e2bbc04334
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-empty.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..74f8543f62
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..64f8436f31
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Rest element containing an elision (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..66575057ab
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..adaaabe56f
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Rest element containing a rest element (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..e71a2cd3a3
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..96fc35d991
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..3e33126e59
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Lone rest element (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..d148f581cc
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..ca88618de8
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..1d6b8c55d7
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..a89ee1089b
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,64 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..1bf578b6b1
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,64 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..b9e346aa62
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,64 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..2ff043fd93
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..083dea0f7b
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,76 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-empty.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..a4b91d6ac9
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-empty.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..fc7ffd0824
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..6799beb53e
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-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/cls-expr-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..aaad99ca4e
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..b63144a2e4
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..8115fca5bd
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..04fb5fd4dd
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..c39b588bc1
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var C = class {
+ async *method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..3ff581de13
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..9b7105b25d
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,62 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var C = class {
+ async *method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..4eacea4edb
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..9fbab5342f
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,84 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..0e3bef2937
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var C = class {
+ async *method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..3befceb3ec
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,66 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var C = class {
+ async *method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..8d43c98329
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Binding as specified via property name and identifier (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var C = class {
+ async *method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..0617bc954f
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..532e1e2daf
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-getter.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..5d42d4c3b4
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-getter.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var count = 0;
+
+
+var callCount = 0;
+var C = class {
+ async *method({...x} = { get v() { count++; return 2; } }) {
+ assert.sameValue(x.v, 2);
+ assert.sameValue(count, 1);
+
+ verifyEnumerable(x, "v");
+ verifyWritable(x, "v");
+ verifyConfigurable(x, "v");
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-nested-obj.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-nested-obj.js
new file mode 100644
index 0000000000..195d5719a7
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-nested-obj.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-nested-obj.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var obj = {a: 3, b: 4};
+
+
+var callCount = 0;
+var C = class {
+ async *method({a, b, ...{c, e}} = {a: 1, b: 2, c: 3, d: 4, e: 5}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+ assert.sameValue(e, 5);
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-nested-rest.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-nested-rest.js
new file mode 100644
index 0000000000..7304aa2c13
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-nested-rest.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-nested-rest.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment and object rest desconstruction is allowed in that case. (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var C = class {
+ async *method({a, b, ...{c, ...rest}} = {a: 1, b: 2, c: 3, d: 4, e: 5}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+
+ assert.sameValue(rest.d, 4);
+ assert.sameValue(rest.e, 5);
+
+ verifyEnumerable(rest, "d");
+ verifyWritable(rest, "d");
+ verifyConfigurable(rest, "d");
+
+ verifyEnumerable(rest, "e");
+ verifyWritable(rest, "e");
+ verifyConfigurable(rest, "e");
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-own-property.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-own-property.js
new file mode 100644
index 0000000000..8f0a905f9b
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-own-property.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-own-property.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Rest object contains just soruce object's own properties (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = Object.create({ x: 1, y: 2 });
+o.z = 3;
+
+
+var callCount = 0;
+var C = class {
+ async *method({ x, ...{y , z} } = o) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-skip-non-enumerable.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..1c7a899d37
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+
+var callCount = 0;
+var C = class {
+ async *method({...rest} = o) {
+ assert.sameValue(rest.a, 3);
+ assert.sameValue(rest.b, 4);
+ assert.sameValue(rest.x, undefined);
+
+ verifyEnumerable(rest, "a");
+ verifyWritable(rest, "a");
+ verifyConfigurable(rest, "a");
+
+ verifyEnumerable(rest, "b");
+ verifyWritable(rest, "b");
+ verifyConfigurable(rest, "b");
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-val-obj.js b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..2ab89e9444
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-val-obj.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-dflt.template
+/*---
+description: Rest object contains just unextracted data (class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var C = class {
+ async *method({a, b, ...rest} = {x: 1, y: 2, a: 5, b: 3}) {
+ assert.sameValue(rest.x, 1);
+ assert.sameValue(rest.y, 2);
+ assert.sameValue(rest.a, undefined);
+ assert.sameValue(rest.b, undefined);
+
+ verifyEnumerable(rest, "x");
+ verifyWritable(rest, "x");
+ verifyConfigurable(rest, "x");
+
+ verifyEnumerable(rest, "y");
+ verifyWritable(rest, "y");
+ verifyConfigurable(rest, "y");
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-empty.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-empty.js
new file mode 100644
index 0000000000..d308275cfa
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-empty.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({}) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(obj).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..0f7004cc45
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ arrow = () => {} }) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..be19e63d85
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-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/cls-expr-async-gen-meth.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } }) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..d78fa89dde
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ cover = (function () {}), xCover = (0, function() {}) }) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..e55c73ad2d
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ fn = function () {}, xFn = function x() {} }) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..11da07c1b8
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ gen = function* () {}, xGen = function* x() {} }) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-init-skipped.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..0cc981d7bf
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ w = counter(), x = counter(), y = counter(), z = counter() }) {
+ 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({ w: null, x: 0, y: false, z: '' }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-trailing-comma.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..bb6ba0377c
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var C = class {
+ async *method({ x, }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-ary-init.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..60f6c989e9
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..09100cc941
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,62 @@
+// 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-async-gen-meth.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var C = class {
+ async *method({ x: [y], }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ x: [45] }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-ary.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..7711f02cbc
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-ary.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ w: [x, y, z] = [4, 5, 6] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ w: [7, undefined, ] }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..01b5131b9e
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,84 @@
+// 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-async-gen-meth.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() }) {
+ 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({ s: null, u: 0, w: false, y: '' }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-id-init.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..da1e2cd112
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-id-init.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var C = class {
+ async *method({ x: y = 33 }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..92fe6d7952
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,66 @@
+// 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-async-gen-meth.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var C = class {
+ async *method({ x: y, }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-id.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..c501a870d6
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-id.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Binding as specified via property name and identifier (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var C = class {
+ async *method({ x: y }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-obj-init.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..907bb07990
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ w: undefined }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-obj.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..bb6797ce69
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-prop-obj.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ w: { x: undefined, z: 7 } }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-getter.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..7ec6be2994
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-getter.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var count = 0;
+
+
+var callCount = 0;
+var C = class {
+ async *method({...x}) {
+ assert.sameValue(x.v, 2);
+ assert.sameValue(count, 1);
+
+ verifyEnumerable(x, "v");
+ verifyWritable(x, "v");
+ verifyConfigurable(x, "v");
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ get v() { count++; return 2; } }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-nested-obj.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-nested-obj.js
new file mode 100644
index 0000000000..b258263408
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-nested-obj.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-nested-obj.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var obj = {a: 3, b: 4};
+
+
+var callCount = 0;
+var C = class {
+ async *method({a, b, ...{c, e}}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+ assert.sameValue(e, 5);
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({a: 1, b: 2, c: 3, d: 4, e: 5}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-obj-nested-rest.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-obj-nested-rest.js
new file mode 100644
index 0000000000..3b7fab8d36
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-obj-nested-rest.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-nested-rest.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment and object rest desconstruction is allowed in that case. (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var C = class {
+ async *method({a, b, ...{c, ...rest}}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+
+ assert.sameValue(rest.d, 4);
+ assert.sameValue(rest.e, 5);
+
+ verifyEnumerable(rest, "d");
+ verifyWritable(rest, "d");
+ verifyConfigurable(rest, "d");
+
+ verifyEnumerable(rest, "e");
+ verifyWritable(rest, "e");
+ verifyConfigurable(rest, "e");
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({a: 1, b: 2, c: 3, d: 4, e: 5}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-obj-own-property.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-obj-own-property.js
new file mode 100644
index 0000000000..60af16c059
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-obj-own-property.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-own-property.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Rest object contains just soruce object's own properties (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = Object.create({ x: 1, y: 2 });
+o.z = 3;
+
+
+var callCount = 0;
+var C = class {
+ async *method({ x, ...{y , z} }) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(o).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-skip-non-enumerable.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..e61725d7ff
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+
+var callCount = 0;
+var C = class {
+ async *method({...rest}) {
+ assert.sameValue(rest.a, 3);
+ assert.sameValue(rest.b, 4);
+ assert.sameValue(rest.x, undefined);
+
+ verifyEnumerable(rest, "a");
+ verifyWritable(rest, "a");
+ verifyConfigurable(rest, "a");
+
+ verifyEnumerable(rest, "b");
+ verifyWritable(rest, "b");
+ verifyConfigurable(rest, "b");
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(o).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-val-obj.js b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..82973b03c3
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-obj-ptrn-rest-val-obj.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth.template
+/*---
+description: Rest object contains just unextracted data (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var C = class {
+ async *method({a, b, ...rest}) {
+ assert.sameValue(rest.x, 1);
+ assert.sameValue(rest.y, 2);
+ assert.sameValue(rest.a, undefined);
+ assert.sameValue(rest.b, undefined);
+
+ verifyEnumerable(rest, "x");
+ verifyWritable(rest, "x");
+ verifyConfigurable(rest, "x");
+
+ verifyEnumerable(rest, "y");
+ verifyWritable(rest, "y");
+ verifyConfigurable(rest, "y");
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({x: 1, y: 2, a: 5, b: 3}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-init-iter-close.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-init-iter-close.js
new file mode 100644
index 0000000000..64b1fbcc1f
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-init-iter-close.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x]) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-init-iter-no-close.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..349006afab
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-init-iter-no-close.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x]) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-name-iter-val.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-name-iter-val.js
new file mode 100644
index 0000000000..8423127ee9
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-name-iter-val.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: SingleNameBinding with normal value iteration (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x, y, z]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..bc4f9ae905
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..8756a88d50
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[x, y, z] = [4, 5, 6]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([[7, 8, 9]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..4fb310ab00
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,76 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[,] = g()]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..da19c02dc7
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,73 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[,] = g()]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([[]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..9b3422c652
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,71 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[] = function() { initCount += 1; return iter; }()]) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..b2c5b7a034
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[] = function() { initCount += 1; }()]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([[23]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..e42d26c791
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,73 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..e880fefce1
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,76 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[...x] = function() { initCount += 1; }()]) {
+ 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([values]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..3fd6b3a401
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Destructuring initializer with an exhausted iterator (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x = 23]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..65de318232
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([arrow = () => {}]) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..ac174bca49
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-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/cls-expr-async-gen-meth-static.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }]) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..101abd4633
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([cover = (function () {}), xCover = (0, function() {})]) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..dadfe97ae3
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([fn = function () {}, xFn = function x() {}]) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..a984f8f96f
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([gen = function* () {}, xGen = function* x() {}]) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..9dca70bd94
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,64 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Destructuring initializer with a "hole" (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x = 23]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+C.method([,]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..9854b882c4
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,73 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([w = counter(), x = counter(), y = counter(), z = counter()]) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([null, 0, false, '']).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..39e6c7cee1
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,67 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Destructuring initializer with an undefined value (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x = 23]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([undefined]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..4f4bf30daf
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,71 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding when value iteration completes (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x]) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..90e5796746
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,66 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([_, x]) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..2acd50098a
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,77 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x, y, z]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..30738173a0
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-id.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..530e9b7845
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([{ x, y, z } = { x: 44, y: 55, z: 66 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([{ x: 11, y: 22, z: 33 }]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..ed11b2c356
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,79 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..4c486fe0b0
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,79 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }]) {
+ 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([{ u: 777, w: 888, y: 999 }]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elision-exhausted.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..499b7d4cfd
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Elision accepts exhausted iterator (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([,]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elision.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elision.js
new file mode 100644
index 0000000000..63c68b98b7
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-elision.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Elision advances iterator (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([,]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(g()).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-empty.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-empty.js
new file mode 100644
index 0000000000..fb1874312f
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-empty.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([]) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-elem.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..a535622c98
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Rest element containing an array BindingElementList pattern (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[x, y, z]]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([3, 4, 5]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-elision.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..9b17e8568c
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Rest element containing an elision (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[,]]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(g()).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-empty.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..5d73f5214c
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Rest element containing an "empty" array pattern (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[]]) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-rest.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..dde452ba32
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Rest element containing a rest element (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[...x]]) {
+ 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(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-id-elision.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..8b40770627
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Rest element following elision elements (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([ , , ...x]) {
+ 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(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..657cc57b6d
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: RestElement applied to an exhausted iterator (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([, , ...x]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([1, 2]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-id.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..337711992f
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-id.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Lone rest element (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...x]) {
+ 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(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-init-ary.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..fc0672c7ab
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[ x ] = []]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-init-id.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..b8c194da77
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-init-id.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Reset element (identifier) does not support initializer (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...x = []]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-init-obj.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..021274ab46
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...{ x } = []]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..73cb96c847
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,64 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[x], y]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-not-final-id.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..f4e94ec64a
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,64 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Rest element (identifier) may not be followed by any element (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...x, y]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..c773260eeb
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,64 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...{ x }, y]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-obj-id.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..cde509b788
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Rest element containing an object binding pattern (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...{ length }]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..3f24b5b0f3
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,76 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Rest element containing an object binding pattern (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...{ 0: v, 1: w, 2: x, 3: y, length: z }]) {
+ 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([7, 8, 9]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-init-iter-close.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..ed415d7eb3
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-init-iter-close.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-init-iter-no-close.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..8d6713abab
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-name-iter-val.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..d8c7b55a68
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-name-iter-val.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..8c386e9e4f
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..90b68d8b19
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..d1d1c0736c
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,76 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..b86ebe7885
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,73 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..b7cd352146
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,71 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..04b7a9e335
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..8397e09c82
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,73 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..9c64e54aa0
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,76 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..50d7aedbd3
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..6b2cb8b7b9
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..075a60d207
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-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/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..71820f839c
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..c3e8c6a3a0
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..ba0cda4786
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..02747084b6
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,64 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..4b492e7fa6
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,73 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..0ba21cd6f5
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,67 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..99627fed07
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,71 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..501576a670
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,66 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..afe9e62dd7
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,77 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..46cd8ab3a1
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..2ef0e57406
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..85acd2824e
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,79 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..96ac0b0318
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,79 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..6fe69aa30b
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Elision accepts exhausted iterator (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elision.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..cc43b8d24e
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elision.js
@@ -0,0 +1,83 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Elision advances iterator (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-empty.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..609ac7f130
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-empty.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..0ed53b0f34
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,90 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..b1f3653c6c
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,96 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an elision (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..55fb51d148
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,79 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..1b8fa344c0
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,75 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Rest element containing a rest element (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..02758599fb
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..afbbc09bd0
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..88b2d27e43
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Lone rest element (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..66992474e0
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..09f3c28d72
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..4b5462333c
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..870a596652
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,64 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..0649353af3
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,64 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..106b3cf68b
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,64 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..901443d353
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..32d88bded5
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,76 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-empty.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..a94492d4ca
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-empty.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..005d95d41f
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..56467a920e
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-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/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..d9cf9bd565
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..01b38758c9
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..21ca8bf461
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..f23bfe6591
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..bfaf2b4579
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var C = class {
+ static async *method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..f58f54a486
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..1fa134165e
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,62 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var C = class {
+ static async *method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..8f19dd0990
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..fb431c6c58
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,84 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..155fe35115
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var C = class {
+ static async *method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..71f83dd81f
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,66 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var C = class {
+ static async *method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..16e1667b2a
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Binding as specified via property name and identifier (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var C = class {
+ static async *method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..e023ecc109
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..807699e148
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-getter.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..2592571700
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-getter.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var count = 0;
+
+
+var callCount = 0;
+var C = class {
+ static async *method({...x} = { get v() { count++; return 2; } }) {
+ assert.sameValue(x.v, 2);
+ assert.sameValue(count, 1);
+
+ verifyEnumerable(x, "v");
+ verifyWritable(x, "v");
+ verifyConfigurable(x, "v");
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-nested-obj.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-nested-obj.js
new file mode 100644
index 0000000000..a94f442651
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-nested-obj.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-nested-obj.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var obj = {a: 3, b: 4};
+
+
+var callCount = 0;
+var C = class {
+ static async *method({a, b, ...{c, e}} = {a: 1, b: 2, c: 3, d: 4, e: 5}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+ assert.sameValue(e, 5);
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-obj-nested-rest.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-obj-nested-rest.js
new file mode 100644
index 0000000000..d3600f2feb
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-obj-nested-rest.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-nested-rest.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment and object rest desconstruction is allowed in that case. (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var C = class {
+ static async *method({a, b, ...{c, ...rest}} = {a: 1, b: 2, c: 3, d: 4, e: 5}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+
+ assert.sameValue(rest.d, 4);
+ assert.sameValue(rest.e, 5);
+
+ verifyEnumerable(rest, "d");
+ verifyWritable(rest, "d");
+ verifyConfigurable(rest, "d");
+
+ verifyEnumerable(rest, "e");
+ verifyWritable(rest, "e");
+ verifyConfigurable(rest, "e");
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-obj-own-property.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-obj-own-property.js
new file mode 100644
index 0000000000..c79762ab82
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-obj-own-property.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-own-property.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Rest object contains just soruce object's own properties (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = Object.create({ x: 1, y: 2 });
+o.z = 3;
+
+
+var callCount = 0;
+var C = class {
+ static async *method({ x, ...{y , z} } = o) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-skip-non-enumerable.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..be47e2743d
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+
+var callCount = 0;
+var C = class {
+ static async *method({...rest} = o) {
+ assert.sameValue(rest.a, 3);
+ assert.sameValue(rest.b, 4);
+ assert.sameValue(rest.x, undefined);
+
+ verifyEnumerable(rest, "a");
+ verifyWritable(rest, "a");
+ verifyConfigurable(rest, "a");
+
+ verifyEnumerable(rest, "b");
+ verifyWritable(rest, "b");
+ verifyConfigurable(rest, "b");
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-val-obj.js b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..69ac1d56c8
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-val-obj.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static-dflt.template
+/*---
+description: Rest object contains just unextracted data (static class expression async generator method (default parameter))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var C = class {
+ static async *method({a, b, ...rest} = {x: 1, y: 2, a: 5, b: 3}) {
+ assert.sameValue(rest.x, 1);
+ assert.sameValue(rest.y, 2);
+ assert.sameValue(rest.a, undefined);
+ assert.sameValue(rest.b, undefined);
+
+ verifyEnumerable(rest, "x");
+ verifyWritable(rest, "x");
+ verifyConfigurable(rest, "x");
+
+ verifyEnumerable(rest, "y");
+ verifyWritable(rest, "y");
+ verifyConfigurable(rest, "y");
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-empty.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-empty.js
new file mode 100644
index 0000000000..88fac39d04
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-empty.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({}) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(obj).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..b637db8590
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ arrow = () => {} }) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..f67714bf61
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-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/cls-expr-async-gen-meth-static.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } }) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+C.method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..03978a4460
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ cover = (function () {}), xCover = (0, function() {}) }) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..cb5538e1b4
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ fn = function () {}, xFn = function x() {} }) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..f84d6e3c1b
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ gen = function* () {}, xGen = function* x() {} }) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-init-skipped.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..4ed5b67edb
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,72 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ w = counter(), x = counter(), y = counter(), z = counter() }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ w: null, x: 0, y: false, z: '' }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-trailing-comma.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..bf44093156
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var C = class {
+ static async *method({ x, }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..c23e79e31d
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..5853c47d4b
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,62 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var C = class {
+ static async *method({ x: [y], }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ x: [45] }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..b796147f59
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ w: [x, y, z] = [4, 5, 6] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ w: [7, undefined, ] }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..6a5ebd3dc4
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,84 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() }) {
+ 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({ s: null, u: 0, w: false, y: '' }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..7cbd9b6439
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-init.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var C = class {
+ static async *method({ x: y = 33 }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..806bb2b839
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,66 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var C = class {
+ static async *method({ x: y, }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-id.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..42e9262125
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-id.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Binding as specified via property name and identifier (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var C = class {
+ static async *method({ x: y }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-obj-init.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..584e939c6a
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ w: undefined }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-obj.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..20b4a06c96
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-prop-obj.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ w: { x: undefined, z: 7 } }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-getter.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..8404cf22c1
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-getter.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var count = 0;
+
+
+var callCount = 0;
+var C = class {
+ static async *method({...x}) {
+ assert.sameValue(x.v, 2);
+ assert.sameValue(count, 1);
+
+ verifyEnumerable(x, "v");
+ verifyWritable(x, "v");
+ verifyConfigurable(x, "v");
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ get v() { count++; return 2; } }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-nested-obj.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-nested-obj.js
new file mode 100644
index 0000000000..21df513c14
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-nested-obj.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-nested-obj.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var obj = {a: 3, b: 4};
+
+
+var callCount = 0;
+var C = class {
+ static async *method({a, b, ...{c, e}}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+ assert.sameValue(e, 5);
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method({a: 1, b: 2, c: 3, d: 4, e: 5}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-obj-nested-rest.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-obj-nested-rest.js
new file mode 100644
index 0000000000..662f61a6e9
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-obj-nested-rest.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-nested-rest.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment and object rest desconstruction is allowed in that case. (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var C = class {
+ static async *method({a, b, ...{c, ...rest}}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+
+ assert.sameValue(rest.d, 4);
+ assert.sameValue(rest.e, 5);
+
+ verifyEnumerable(rest, "d");
+ verifyWritable(rest, "d");
+ verifyConfigurable(rest, "d");
+
+ verifyEnumerable(rest, "e");
+ verifyWritable(rest, "e");
+ verifyConfigurable(rest, "e");
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method({a: 1, b: 2, c: 3, d: 4, e: 5}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-obj-own-property.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-obj-own-property.js
new file mode 100644
index 0000000000..66e312d824
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-obj-own-property.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-own-property.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Rest object contains just soruce object's own properties (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = Object.create({ x: 1, y: 2 });
+o.z = 3;
+
+
+var callCount = 0;
+var C = class {
+ static async *method({ x, ...{y , z} }) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method(o).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-skip-non-enumerable.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..792346def3
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+
+var callCount = 0;
+var C = class {
+ static async *method({...rest}) {
+ assert.sameValue(rest.a, 3);
+ assert.sameValue(rest.b, 4);
+ assert.sameValue(rest.x, undefined);
+
+ verifyEnumerable(rest, "a");
+ verifyWritable(rest, "a");
+ verifyConfigurable(rest, "a");
+
+ verifyEnumerable(rest, "b");
+ verifyWritable(rest, "b");
+ verifyConfigurable(rest, "b");
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method(o).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-val-obj.js b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..f474c9d17d
--- /dev/null
+++ b/test/language/expressions/class/dstr-async-gen-meth-static-obj-ptrn-rest-val-obj.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/cls-expr-async-gen-meth-static.template
+/*---
+description: Rest object contains just unextracted data (static class expression async generator method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassExpression : class BindingIdentifieropt ClassTail
+
+ 1. If BindingIdentifieropt is not present, let className be undefined.
+ 2. Else, let className be StringValue of BindingIdentifier.
+ 3. Let value be the result of ClassDefinitionEvaluation of ClassTail
+ with argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation
+ for m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var C = class {
+ static async *method({a, b, ...rest}) {
+ assert.sameValue(rest.x, 1);
+ assert.sameValue(rest.y, 2);
+ assert.sameValue(rest.a, undefined);
+ assert.sameValue(rest.b, undefined);
+
+ verifyEnumerable(rest, "x");
+ verifyWritable(rest, "x");
+ verifyConfigurable(rest, "x");
+
+ verifyEnumerable(rest, "y");
+ verifyWritable(rest, "y");
+ verifyConfigurable(rest, "y");
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method({x: 1, y: 2, a: 5, b: 3}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-init-iter-close.js b/test/language/expressions/object/dstr-async-gen-meth-ary-init-iter-close.js
new file mode 100644
index 0000000000..e19bcf28f4
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-init-iter-close.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+
+var callCount = 0;
+var obj = {
+ async *method([x]) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-init-iter-no-close.js b/test/language/expressions/object/dstr-async-gen-meth-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..5d0787e580
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-init-iter-no-close.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+
+var callCount = 0;
+var obj = {
+ async *method([x]) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-name-iter-val.js b/test/language/expressions/object/dstr-async-gen-meth-ary-name-iter-val.js
new file mode 100644
index 0000000000..480ebbae65
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-name-iter-val.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: SingleNameBinding with normal value iteration (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([x, y, z]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..9b1159563b
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..97edbdabca
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([[x, y, z] = [4, 5, 6]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([[7, 8, 9]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..6b6801a738
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([[,] = g()]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..09994b091e
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([[,] = g()]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([[]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..fa7c038162
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([[] = function() { initCount += 1; return iter; }()]) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..0cfe75ce9d
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([[] = function() { initCount += 1; }()]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([[23]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..6aad35c9d6
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..5a0149c560
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([[...x] = function() { initCount += 1; }()]) {
+ 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([values]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..f960fc433b
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Destructuring initializer with an exhausted iterator (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([x = 23]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..971f59b80c
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,50 @@
+// 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/async-gen-meth.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([arrow = () => {}]) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..e2efbe4e20
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,52 @@
+// 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/async-gen-meth.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }]) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..436827f664
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,51 @@
+// 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/async-gen-meth.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([cover = (function () {}), xCover = (0, function() {})]) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..37fe061be4
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,51 @@
+// 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/async-gen-meth.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([fn = function () {}, xFn = function x() {}]) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..12d34c1cde
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,51 @@
+// 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/async-gen-meth.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([gen = function* () {}, xGen = function* x() {}]) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..2e3f3c4d91
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Destructuring initializer with a "hole" (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([x = 23]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([,]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..028b9e47f6
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([w = counter(), x = counter(), y = counter(), z = counter()]) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([null, 0, false, '']).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..37e6498b8f
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Destructuring initializer with an undefined value (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([x = 23]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([undefined]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..c93c01c34e
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: SingleNameBinding when value iteration completes (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([x]) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..2b6c1e9951
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,47 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([_, x]) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..81d14b61bc
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([x, y, z]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..68489f8748
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-obj-id.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..2e09c59ea2
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([{ x, y, z } = { x: 44, y: 55, z: 66 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([{ x: 11, y: 22, z: 33 }]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..20f6681d89
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..fab7573f17
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }]) {
+ 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([{ u: 777, w: 888, y: 999 }]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elision-exhausted.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..d3ff1150a5
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Elision accepts exhausted iterator (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+
+var callCount = 0;
+var obj = {
+ async *method([,]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elision.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elision.js
new file mode 100644
index 0000000000..f9376b8460
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-elision.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Elision advances iterator (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([,]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(g()).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-empty.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-empty.js
new file mode 100644
index 0000000000..053e0aaa49
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-empty.js
@@ -0,0 +1,47 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+
+var callCount = 0;
+var obj = {
+ async *method([]) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-ary-elem.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..2a85ce2a0f
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Rest element containing an array BindingElementList pattern (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([...[x, y, z]]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([3, 4, 5]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-ary-elision.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..7e8057ec5b
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Rest element containing an elision (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([...[,]]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(g()).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-ary-empty.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..adbc1a816f
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Rest element containing an "empty" array pattern (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([...[]]) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-ary-rest.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..7c08905b89
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Rest element containing a rest element (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([...[...x]]) {
+ 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(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-id-elision.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..90cbdc1e8a
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Rest element following elision elements (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([ , , ...x]) {
+ 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(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..bc88c7034c
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: RestElement applied to an exhausted iterator (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([, , ...x]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([1, 2]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-id.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..4382157cfd
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-id.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Lone rest element (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+
+var callCount = 0;
+var obj = {
+ async *method([...x]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-init-ary.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..14ec7d8726
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([...[ x ] = []]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-init-id.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..fca362170d
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-init-id.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Reset element (identifier) does not support initializer (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([...x = []]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-init-obj.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..d873b1b043
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([...{ x } = []]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..4ea655a09a
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([...[x], y]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-not-final-id.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..e6e5eb4265
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Rest element (identifier) may not be followed by any element (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([...x, y]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..e784923774
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([...{ x }, y]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-obj-id.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..baf63e81da
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Rest element containing an object binding pattern (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([...{ length }]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..e3601f3a8c
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Rest element containing an object binding pattern (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([...{ 0: v, 1: w, 2: x, 3: y, length: z }]) {
+ 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([7, 8, 9]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-init-iter-close.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..36a7165902
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-init-iter-close.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-init-iter-no-close.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..320a505ec2
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-name-iter-val.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..5e345b4642
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-name-iter-val.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..4fef251e24
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..2226c85a03
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..fb460616f0
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..5d8633895d
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..45240896f5
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..e739fc85c4
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..d5e6071438
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..75cb38cc85
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..51a929aa06
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..edc0b478f8
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,50 @@
+// 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/async-gen-method-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..e09d4861b9
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,52 @@
+// 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/async-gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..9dca6381a2
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,51 @@
+// 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/async-gen-method-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..e6d77ec9c1
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,51 @@
+// 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/async-gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..da562222a6
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,51 @@
+// 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/async-gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..4513990768
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..eb2bb1d681
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,54 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..cd6afc2d88
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..1d15c16704
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..1da266ae41
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,47 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..c0f6ac8568
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,58 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..fbc61c154d
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..3075aaef2d
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..1ef45a2f7b
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..7e11161d19
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elision-exhausted.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..7afec8813c
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,55 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Elision accepts exhausted iterator (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elision.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..e235d9fa98
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-elision.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Elision advances iterator (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-empty.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..c8e7ea1d3f
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-empty.js
@@ -0,0 +1,47 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+
+var callCount = 0;
+var obj = {
+ async *method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elem.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..19e83422db
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elision.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..7646efd23f
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Rest element containing an elision (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-empty.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..e05934b2dd
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-rest.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..8a74ce4010
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Rest element containing a rest element (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-elision.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..4e9a7a297e
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Rest element following elision elements (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..8127901b63
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-id.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..d5c1bb2090
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Lone rest element (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+
+var callCount = 0;
+var obj = {
+ async *method([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-ary.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..f245f3cec9
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-id.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..4ba44f2129
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-obj.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..6a5405dc2d
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..11a6c7d437
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-id.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..e3d5d9bc3d
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..316274925d
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-id.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..0de62cb0df
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Rest element containing an object binding pattern (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..ee5540b8a0
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Rest element containing an object binding pattern (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-empty.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..e00c5431bf
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-empty.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+
+var callCount = 0;
+var obj = {
+ async *method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..5134ef2930
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..d1cff55fcb
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..db3a8fd631
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..e79109fd74
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..aa376bd39d
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-skipped.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..fc141617ea
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-trailing-comma.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..9d7bc92d94
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-init.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..99dc367f19
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..b164875aca
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..13000678b8
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..813122d6ed
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..97facc2121
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..e0a6649411
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,47 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-id.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..a19da6f05b
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Binding as specified via property name and identifier (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj-init.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..310e8826a7
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..abbf751140
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-getter.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..bda58c0ca9
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-getter.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var count = 0;
+
+
+var callCount = 0;
+var obj = {
+ async *method({...x} = { get v() { count++; return 2; } }) {
+ assert.sameValue(x.v, 2);
+ assert.sameValue(count, 1);
+
+ verifyEnumerable(x, "v");
+ verifyWritable(x, "v");
+ verifyConfigurable(x, "v");
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-nested-obj.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-nested-obj.js
new file mode 100644
index 0000000000..a874c566ee
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-nested-obj.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-nested-obj.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var obj = {a: 3, b: 4};
+
+
+var callCount = 0;
+var obj = {
+ async *method({a, b, ...{c, e}} = {a: 1, b: 2, c: 3, d: 4, e: 5}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+ assert.sameValue(e, 5);
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-nested-rest.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-nested-rest.js
new file mode 100644
index 0000000000..e36d2567b4
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-nested-rest.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-nested-rest.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment and object rest desconstruction is allowed in that case. (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method({a, b, ...{c, ...rest}} = {a: 1, b: 2, c: 3, d: 4, e: 5}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+
+ assert.sameValue(rest.d, 4);
+ assert.sameValue(rest.e, 5);
+
+ verifyEnumerable(rest, "d");
+ verifyWritable(rest, "d");
+ verifyConfigurable(rest, "d");
+
+ verifyEnumerable(rest, "e");
+ verifyWritable(rest, "e");
+ verifyConfigurable(rest, "e");
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-own-property.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-own-property.js
new file mode 100644
index 0000000000..cb01cb6b5b
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-own-property.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-own-property.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Rest object contains just soruce object's own properties (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = Object.create({ x: 1, y: 2 });
+o.z = 3;
+
+
+var callCount = 0;
+var obj = {
+ async *method({ x, ...{y , z} } = o) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-skip-non-enumerable.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..52dea8b347
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+
+var callCount = 0;
+var obj = {
+ async *method({...rest} = o) {
+ assert.sameValue(rest.a, 3);
+ assert.sameValue(rest.b, 4);
+ assert.sameValue(rest.x, undefined);
+
+ verifyEnumerable(rest, "a");
+ verifyWritable(rest, "a");
+ verifyConfigurable(rest, "a");
+
+ verifyEnumerable(rest, "b");
+ verifyWritable(rest, "b");
+ verifyConfigurable(rest, "b");
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-val-obj.js b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..0c2a19291f
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-dflt-obj-ptrn-rest-val-obj.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/async-gen-method-dflt.template
+/*---
+description: Rest object contains just unextracted data (async generator method (default parameter))
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method({a, b, ...rest} = {x: 1, y: 2, a: 5, b: 3}) {
+ assert.sameValue(rest.x, 1);
+ assert.sameValue(rest.y, 2);
+ assert.sameValue(rest.a, undefined);
+ assert.sameValue(rest.b, undefined);
+
+ verifyEnumerable(rest, "x");
+ verifyWritable(rest, "x");
+ verifyConfigurable(rest, "x");
+
+ verifyEnumerable(rest, "y");
+ verifyWritable(rest, "y");
+ verifyConfigurable(rest, "y");
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-empty.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-empty.js
new file mode 100644
index 0000000000..22dd65cc11
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-empty.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+
+var callCount = 0;
+var obj = {
+ async *method({}) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(obj).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-arrow.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..023538fa25
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method({ arrow = () => {} }) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-class.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..7a7500c0f3
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } }) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-cover.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..d66b0cf9c9
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method({ cover = (function () {}), xCover = (0, function() {}) }) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-fn.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..f2205817bd
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method({ fn = function () {}, xFn = function x() {} }) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-gen.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..abb045b755
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method({ gen = function* () {}, xGen = function* x() {} }) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-skipped.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..b23416a796
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,53 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method({ w = counter(), x = counter(), y = counter(), z = counter() }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({ w: null, x: 0, y: false, z: '' }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-trailing-comma.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..7cfb3d6d56
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method({ x, }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-ary-init.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..6d80a3dea9
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-ary-trailing-comma.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..61d8739555
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method({ x: [y], }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({ x: [45] }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-ary.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..81f8e51f31
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-ary.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method({ w: [x, y, z] = [4, 5, 6] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({ w: [7, undefined, ] }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-id-init-skipped.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..6083b3e226
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() }) {
+ 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({ s: null, u: 0, w: false, y: '' }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-id-init.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..f33f24d56e
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-id-init.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method({ x: y = 33 }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({ }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-id-trailing-comma.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..6f6372ea4b
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,47 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method({ x: y, }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-id.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..813649196e
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-id.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Binding as specified via property name and identifier (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method({ x: y }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-obj-init.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..decb9a913f
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 = {
+ async *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({ w: undefined }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-obj.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..4fea231d4f
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-prop-obj.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({ w: { x: undefined, z: 7 } }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-getter.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..8c1f1128ec
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-getter.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var count = 0;
+
+
+var callCount = 0;
+var obj = {
+ async *method({...x}) {
+ assert.sameValue(x.v, 2);
+ assert.sameValue(count, 1);
+
+ verifyEnumerable(x, "v");
+ verifyWritable(x, "v");
+ verifyConfigurable(x, "v");
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({ get v() { count++; return 2; } }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-nested-obj.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-nested-obj.js
new file mode 100644
index 0000000000..9d498eeccf
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-nested-obj.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-nested-obj.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var obj = {a: 3, b: 4};
+
+
+var callCount = 0;
+var obj = {
+ async *method({a, b, ...{c, e}}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+ assert.sameValue(e, 5);
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({a: 1, b: 2, c: 3, d: 4, e: 5}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-obj-nested-rest.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-obj-nested-rest.js
new file mode 100644
index 0000000000..284e6c356a
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-obj-nested-rest.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-nested-rest.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment and object rest desconstruction is allowed in that case. (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method({a, b, ...{c, ...rest}}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+
+ assert.sameValue(rest.d, 4);
+ assert.sameValue(rest.e, 5);
+
+ verifyEnumerable(rest, "d");
+ verifyWritable(rest, "d");
+ verifyConfigurable(rest, "d");
+
+ verifyEnumerable(rest, "e");
+ verifyWritable(rest, "e");
+ verifyConfigurable(rest, "e");
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({a: 1, b: 2, c: 3, d: 4, e: 5}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-obj-own-property.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-obj-own-property.js
new file mode 100644
index 0000000000..a9509b285d
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-obj-own-property.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-own-property.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Rest object contains just soruce object's own properties (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = Object.create({ x: 1, y: 2 });
+o.z = 3;
+
+
+var callCount = 0;
+var obj = {
+ async *method({ x, ...{y , z} }) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(o).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-skip-non-enumerable.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..117de2a268
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+
+var callCount = 0;
+var obj = {
+ async *method({...rest}) {
+ assert.sameValue(rest.a, 3);
+ assert.sameValue(rest.b, 4);
+ assert.sameValue(rest.x, undefined);
+
+ verifyEnumerable(rest, "a");
+ verifyWritable(rest, "a");
+ verifyConfigurable(rest, "a");
+
+ verifyEnumerable(rest, "b");
+ verifyWritable(rest, "b");
+ verifyConfigurable(rest, "b");
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method(o).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-val-obj.js b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..2a1bf68307
--- /dev/null
+++ b/test/language/expressions/object/dstr-async-gen-meth-obj-ptrn-rest-val-obj.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/async-gen-meth.template
+/*---
+description: Rest object contains just unextracted data (async generator method)
+esid: sec-asyncgenerator-definitions-propertydefinitionevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+var obj = {
+ async *method({a, b, ...rest}) {
+ assert.sameValue(rest.x, 1);
+ assert.sameValue(rest.y, 2);
+ assert.sameValue(rest.a, undefined);
+ assert.sameValue(rest.b, undefined);
+
+ verifyEnumerable(rest, "x");
+ verifyWritable(rest, "x");
+ verifyConfigurable(rest, "x");
+
+ verifyEnumerable(rest, "y");
+ verifyWritable(rest, "y");
+ verifyConfigurable(rest, "y");
+
+ callCount = callCount + 1;
+ }
+};
+
+obj.method({x: 1, y: 2, a: 5, b: 3}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-init-iter-close.js b/test/language/statements/async-generator/dstr-ary-init-iter-close.js
new file mode 100644
index 0000000000..90dfc65884
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-init-iter-close.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+
+var callCount = 0;
+async function* f([x]) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+};
+f(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-init-iter-no-close.js b/test/language/statements/async-generator/dstr-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..cf71d05052
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-init-iter-no-close.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+
+var callCount = 0;
+async function* f([x]) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+};
+f(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-name-iter-val.js b/test/language/statements/async-generator/dstr-ary-name-iter-val.js
new file mode 100644
index 0000000000..7b0fb4a8f4
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-name-iter-val.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: SingleNameBinding with normal value iteration (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([x, y, z]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..6e43ae848e
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+async function* f([[x, y, z] = [4, 5, 6]]) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+};
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..24f12c1e3b
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+async function* f([[x, y, z] = [4, 5, 6]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+};
+f([[7, 8, 9]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..7e3b4da798
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+
+var callCount = 0;
+async function* f([[,] = g()]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..3a151be92c
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+
+var callCount = 0;
+async function* f([[,] = g()]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+};
+f([[]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..002e831708
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+
+var callCount = 0;
+async function* f([[] = function() { initCount += 1; return iter; }()]) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+};
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..afddd1c069
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+
+var callCount = 0;
+async function* f([[] = function() { initCount += 1; }()]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f([[23]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..1ef9412dae
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+
+var callCount = 0;
+async function* f([[...x] = values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..33055af227
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+
+var callCount = 0;
+async function* f([[...x] = function() { initCount += 1; }()]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f([values]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..ba82ce74e1
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Destructuring initializer with an exhausted iterator (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([x = 23]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..75f23a1017
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([arrow = () => {}]) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..db68e1028b
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }]) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+};
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..aa5aa23d15
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([cover = (function () {}), xCover = (0, function() {})]) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..1e6ed5c955
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([fn = function () {}, xFn = function x() {}]) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..ba47c6da01
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([gen = function* () {}, xGen = function* x() {}]) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-hole.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..95c8e0a0ec
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Destructuring initializer with a "hole" (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([x = 23]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+};
+f([,]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..9b33450ab2
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+
+var callCount = 0;
+async function* f([w = counter(), x = counter(), y = counter(), z = counter()]) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f([null, 0, false, '']).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-undef.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..cf31ab9154
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,40 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Destructuring initializer with an undefined value (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([x = 23]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f([undefined]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..39652e587b
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: SingleNameBinding when value iteration completes (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([x]) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-iter-done.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..09b6a7f4aa
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([_, x]) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-iter-val.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..379d181fcf
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([x, y, z]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-obj-id-init.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..45bffcc9f4
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+async function* f([{ x, y, z } = { x: 44, y: 55, z: 66 }]) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+};
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-obj-id.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..d53643e268
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+async function* f([{ x, y, z } = { x: 44, y: 55, z: 66 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+};
+f([{ x: 11, y: 22, z: 33 }]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..5584a570af
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 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;
+async 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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/async-generator/dstr-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..0f56359f7c
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 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;
+async function* f([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }]) {
+ 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([{ u: 777, w: 888, y: 999 }]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elision-exhausted.js b/test/language/statements/async-generator/dstr-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..ba34f1af90
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,47 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Elision accepts exhausted iterator (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+
+var callCount = 0;
+async function* f([,]) {
+
+ callCount = callCount + 1;
+};
+f(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-elision.js b/test/language/statements/async-generator/dstr-ary-ptrn-elision.js
new file mode 100644
index 0000000000..563736af2a
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-elision.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Elision advances iterator (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+
+var callCount = 0;
+async function* f([,]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+f(g()).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-empty.js b/test/language/statements/async-generator/dstr-ary-ptrn-empty.js
new file mode 100644
index 0000000000..bca9a24a95
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-empty.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+
+var callCount = 0;
+async function* f([]) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+};
+f(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-rest-ary-elem.js b/test/language/statements/async-generator/dstr-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..6ec47c6a66
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Rest element containing an array BindingElementList pattern (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 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;
+async function* f([...[x, y, z]]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+};
+f([3, 4, 5]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-rest-ary-elision.js b/test/language/statements/async-generator/dstr-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..2599e4307f
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Rest element containing an elision (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 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;
+async function* f([...[,]]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+};
+f(g()).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-rest-ary-empty.js b/test/language/statements/async-generator/dstr-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..3383a05f8b
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Rest element containing an "empty" array pattern (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+
+var callCount = 0;
+async function* f([...[]]) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+};
+f(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-rest-ary-rest.js b/test/language/statements/async-generator/dstr-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..87e1bb8994
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Rest element containing a rest element (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+
+var callCount = 0;
+async function* f([...[...x]]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+};
+f(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-rest-id-elision.js b/test/language/statements/async-generator/dstr-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..76e3b66459
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Rest element following elision elements (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+
+var callCount = 0;
+async function* f([ , , ...x]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-rest-id-exhausted.js b/test/language/statements/async-generator/dstr-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..eabf8f866c
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,40 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: RestElement applied to an exhausted iterator (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+
+var callCount = 0;
+async function* f([, , ...x]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+};
+f([1, 2]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-rest-id.js b/test/language/statements/async-generator/dstr-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..fb7d10bd0a
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-rest-id.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Lone rest element (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+
+var callCount = 0;
+async function* f([...x]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-rest-init-ary.js b/test/language/statements/async-generator/dstr-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..e7fb8ec102
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+async function* f([...[ x ] = []]) {
+
+ callCount = callCount + 1;
+};
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-rest-init-id.js b/test/language/statements/async-generator/dstr-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..41a3a5c0f7
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-rest-init-id.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Reset element (identifier) does not support initializer (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+async function* f([...x = []]) {
+
+ callCount = callCount + 1;
+};
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-rest-init-obj.js b/test/language/statements/async-generator/dstr-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..81420e0b41
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+async function* f([...{ x } = []]) {
+
+ callCount = callCount + 1;
+};
+f([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-rest-not-final-ary.js b/test/language/statements/async-generator/dstr-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..0d9bcc79a2
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+async function* f([...[x], y]) {
+
+ callCount = callCount + 1;
+};
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-rest-not-final-id.js b/test/language/statements/async-generator/dstr-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..c3ee45107b
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Rest element (identifier) may not be followed by any element (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+async function* f([...x, y]) {
+
+ callCount = callCount + 1;
+};
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-rest-not-final-obj.js b/test/language/statements/async-generator/dstr-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..1e5259c387
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+async function* f([...{ x }, y]) {
+
+ callCount = callCount + 1;
+};
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-rest-obj-id.js b/test/language/statements/async-generator/dstr-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..47027b590d
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Rest element containing an object binding pattern (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+
+var callCount = 0;
+async function* f([...{ length }]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+};
+f([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/async-generator/dstr-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..01b3ef05d0
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Rest element containing an object binding pattern (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+
+var callCount = 0;
+async function* f([...{ 0: v, 1: w, 2: x, 3: y, length: z }]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+};
+f([7, 8, 9]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-init-iter-close.js b/test/language/statements/async-generator/dstr-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..520e4a6106
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-init-iter-close.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: false };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+
+var callCount = 0;
+async function* f([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-init-iter-no-close.js b/test/language/statements/async-generator/dstr-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..f295723293
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,51 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.5 Runtime Semantics: BindingInitialization
+
+ BindingPattern : ArrayBindingPattern
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, return ? IteratorClose(iterator,
+ result).
+ [...]
+
+---*/
+var doneCallCount = 0;
+var iter = {};
+iter[Symbol.iterator] = function() {
+ return {
+ next: function() {
+ return { value: null, done: true };
+ },
+ return: function() {
+ doneCallCount += 1;
+ return {};
+ }
+ };
+};
+
+
+var callCount = 0;
+async function* f([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-name-iter-val.js b/test/language/statements/async-generator/dstr-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..0922055616
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-name-iter-val.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ i. Let v be IteratorValue(next).
+ ii. If v is an abrupt completion, set
+ iteratorRecord.[[done]] to true.
+ iii. ReturnIfAbrupt(v).
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([x, y, z] = [1, 2, 3]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..a2a5ed3f17
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-init.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+async function* f([[x, y, z] = [4, 5, 6]] = []) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..5bfb2622f8
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elem-iter.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+async function* f([[x, y, z] = [4, 5, 6]] = [[7, 8, 9]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..2b65bf8b5b
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-init.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+
+var callCount = 0;
+async function* f([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..b854e0ecb9
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-elision-iter.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+
+---*/
+var callCount = 0;
+function* g() {
+ callCount += 1;
+};
+
+
+var callCount = 0;
+async function* f([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..2f7f07c61a
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-init.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+var iterCount = 0;
+var iter = function*() { iterCount += 1; }();
+
+
+var callCount = 0;
+async function* f([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..4aee4dbecf
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-empty-iter.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var initCount = 0;
+
+
+var callCount = 0;
+async function* f([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..0abc885975
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-init.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+
+
+var callCount = 0;
+async function* f([[...x] = values] = []) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..4538399d88
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-ary-rest-iter.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ [...]
+ e. Else,
+ i. Let v be IteratorValue(next).
+ [...]
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+var values = [2, 1, 3];
+var initCount = 0;
+
+
+var callCount = 0;
+async function* f([[...x] = function() { initCount += 1; }()] = [values]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x[0], 2);
+ assert.sameValue(x[1], 1);
+ assert.sameValue(x[2], 3);
+ assert.sameValue(x.length, 3);
+ assert.notSameValue(x, values);
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..dd3febb82a
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-exhausted.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..e8e98b1576
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..ce4fadfe11
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-class.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..0bb2d7fbd2
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-cover.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..7a83484322
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-fn.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..54c2700c0b
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-fn-name-gen.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..32767ca8c4
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-hole.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ SingleNameBinding : BindingIdentifier Initializeropt
+ [...] 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v). 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..342518de20
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,46 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+
+var callCount = 0;
+async function* f([w = counter(), x = counter(), y = counter(), z = counter()] = [null, 0, false, '']) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..087f3dee61
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,40 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-init-undef.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ [...]
+ 7. If environment is undefined, return PutValue(lhs, v).
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..76d8c3f9ae
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-complete.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ e. Else,
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..f187738935
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-done.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 4. If iteratorRecord.[[done]] is false, then
+ [...]
+ 5. If iteratorRecord.[[done]] is true, let v be undefined.
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..d0a311731e
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,50 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-id-iter-val.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 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;
+async 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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..9fc3bdcde3
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id-init.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+async function* f([{ x, y, z } = { x: 44, y: 55, z: 66 }] = []) {
+ assert.sameValue(x, 44);
+ assert.sameValue(y, 55);
+ assert.sameValue(z, 66);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-obj-id.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..6fde28292b
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingElement : BindingPatternInitializer opt
+
+ [...]
+ 2. If iteratorRecord.[[done]] is true, let v be undefined.
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be ? GetValue(defaultValue).
+ 4. Return the result of performing BindingInitialization of BindingPattern
+ with v and environment as the arguments.
+---*/
+
+
+var callCount = 0;
+async function* f([{ x, y, z } = { x: 44, y: 55, z: 66 }] = [{ x: 11, y: 22, z: 33 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..6b0fb3dc80
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id-init.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 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;
+async 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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..10bec9e8d9
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-prop-id.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 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;
+async 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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elision-exhausted.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..afdb017e33
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,47 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Elision accepts exhausted iterator (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ [...]
+ 2. Return NormalCompletion(empty).
+
+---*/
+var iter = function*() {}();
+iter.next();
+
+
+var callCount = 0;
+async function* f([,] = iter) {
+
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elision.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..0e869d93df
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-elision.js
@@ -0,0 +1,56 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Elision advances iterator (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ Elision ]
+
+ 1. Return the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with iteratorRecord
+ as the argument.
+
+ 12.14.5.3 Runtime Semantics: IteratorDestructuringAssignmentEvaluation
+
+ Elision : ,
+
+ 1. If iteratorRecord.[[done]] is false, then
+ a. Let next be IteratorStep(iteratorRecord.[[iterator]]).
+ b. If next is an abrupt completion, set iteratorRecord.[[done]] to true.
+ c. ReturnIfAbrupt(next).
+ d. If next is false, set iteratorRecord.[[done]] to true.
+ 2. Return NormalCompletion(empty).
+
+---*/
+var first = 0;
+var second = 0;
+function* g() {
+ first += 1;
+ yield;
+ second += 1;
+};
+
+
+var callCount = 0;
+async function* f([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-empty.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..d54c3a8c37
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-empty.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+
+var callCount = 0;
+async function* f([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-ary-elem.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..6777ce74ec
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,63 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 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;
+async 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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-ary-elision.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..05a65acb15
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Rest element containing an elision (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 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;
+async function* f([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-ary-empty.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..3b21184b07
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,52 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ ArrayBindingPattern : [ ]
+
+ 1. Return NormalCompletion(empty).
+
+---*/
+var iterations = 0;
+var iter = function*() {
+ iterations += 1;
+}();
+
+
+var callCount = 0;
+async function* f([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-ary-rest.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..698d7107ac
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,48 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Rest element containing a rest element (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+var values = [1, 2, 3];
+
+
+var callCount = 0;
+async function* f([...[...x]] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-id-elision.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..959cd49dfe
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Rest element following elision elements (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ ArrayBindingPattern : [ Elisionopt BindingRestElement ]
+ 1. If Elision is present, then
+ a. Let status be the result of performing
+ IteratorDestructuringAssignmentEvaluation of Elision with
+ iteratorRecord as the argument.
+ b. ReturnIfAbrupt(status).
+ 2. Return the result of performing IteratorBindingInitialization for
+ BindingRestElement with iteratorRecord and environment as arguments.
+---*/
+var values = [1, 2, 3, 4, 5];
+
+
+var callCount = 0;
+async function* f([ , , ...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 3);
+ assert.sameValue(x[1], 4);
+ assert.sameValue(x[2], 5);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..82fba931f1
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,40 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ 1. Let lhs be ResolveBinding(StringValue of BindingIdentifier,
+ environment).
+ 2. ReturnIfAbrupt(lhs). 3. Let A be ArrayCreate(0). 4. Let n=0. 5. Repeat,
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. If environment is undefined, return PutValue(lhs, A).
+ ii. Return InitializeReferencedBinding(lhs, A).
+
+---*/
+
+
+var callCount = 0;
+async function* f([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-id.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..f7609570d3
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Lone rest element (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+ BindingRestElement : ... BindingIdentifier
+ [...] 3. Let A be ArrayCreate(0). [...] 5. Repeat
+ [...]
+ f. Let status be CreateDataProperty(A, ToString (n), nextValue).
+ [...]
+---*/
+var values = [1, 2, 3];
+
+
+var callCount = 0;
+async function* f([...x] = values) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 3);
+ assert.sameValue(x[0], 1);
+ assert.sameValue(x[1], 2);
+ assert.sameValue(x[2], 3);
+ assert.notSameValue(x, values);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-init-ary.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..487ac76dd3
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-init-ary.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-ary.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+async function* f([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-init-id.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..15198ec7e1
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-init-id.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-id.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+async function* f([...x = []] = []) {
+
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-init-obj.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..12b82a0bcf
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-init-obj.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-init-obj.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+async function* f([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..373d090c09
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-not-final-ary.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-ary.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+async function* f([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-not-final-id.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..81e7f260ff
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-not-final-id.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-id.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+async function* f([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..83bda6e96d
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-not-final-obj.js
@@ -0,0 +1,37 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-not-final-obj.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: SyntaxError
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+ ArrayBindingPattern[Yield] :
+ [ Elisionopt BindingRestElement[?Yield]opt ]
+ [ BindingElementList[?Yield] ]
+ [ BindingElementList[?Yield] , Elisionopt BindingRestElement[?Yield]opt ]
+---*/
+
+
+var callCount = 0;
+async function* f([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-obj-id.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..d2d8339cda
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Rest element containing an object binding pattern (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+
+var callCount = 0;
+async function* f([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..a5ffa82fc0
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,49 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-prop-id.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Rest element containing an object binding pattern (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.6 Runtime Semantics: IteratorBindingInitialization
+
+ BindingRestElement : ... BindingPattern
+
+ 1. Let A be ArrayCreate(0).
+ [...]
+ 3. Repeat
+ [...]
+ b. If iteratorRecord.[[done]] is true, then
+ i. Return the result of performing BindingInitialization of
+ BindingPattern with A and environment as the arguments.
+ [...]
+---*/
+
+
+var callCount = 0;
+async function* f([...{ 0: v, 1: w, 2: x, 3: y, length: z }] = [7, 8, 9]) {
+ assert.sameValue(v, 7);
+ assert.sameValue(w, 8);
+ assert.sameValue(x, 9);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ assert.throws(ReferenceError, function() {
+ length;
+ });
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-empty.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..4e3164e764
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-empty.js
@@ -0,0 +1,40 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+
+var callCount = 0;
+async function* f({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..255c726920
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+async function* f({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..3f80202a68
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+async function* f({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..d26474659a
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+async function* f({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..0dae03fee6
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+async function* f({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..685bddecfa
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+async function* f({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-skipped.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..841f82081f
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+
+var callCount = 0;
+async function* f({ w = counter(), x = counter(), y = counter(), z = counter() } = { w: null, x: 0, y: false, z: '' }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-trailing-comma.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..fd0ef6b2d8
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,35 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+async function* f({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-ary-init.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..bce18088d3
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+async function* f({ w: [x, y, z] = [4, 5, 6] } = {}) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..7aedec2da0
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,35 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+async function* f({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-ary.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..b3d65792e3
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+async function* f({ w: [x, y, z] = [4, 5, 6] } = { w: [7, undefined, ] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..d488d32ba4
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 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;
+async 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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-id-init.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..82009c8d0f
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..f6bee2787b
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+async function* f({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-id.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..b6f0ad17d1
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Binding as specified via property name and identifier (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-obj-init.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..56bb921a50
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+async function* f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: undefined }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-obj.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..1de9b79da0
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+async function* f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } } = { w: { x: undefined, z: 7 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-getter.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..118c4dabf1
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-getter.js
@@ -0,0 +1,36 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+---*/
+var count = 0;
+
+
+var callCount = 0;
+async function* f({...x} = { get v() { count++; return 2; } }) {
+ assert.sameValue(x.v, 2);
+ assert.sameValue(count, 1);
+
+ verifyEnumerable(x, "v");
+ verifyWritable(x, "v");
+ verifyConfigurable(x, "v");
+
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-nested-obj.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-nested-obj.js
new file mode 100644
index 0000000000..dad25d8b59
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-nested-obj.js
@@ -0,0 +1,33 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-nested-obj.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+---*/
+var obj = {a: 3, b: 4};
+
+
+var callCount = 0;
+async function* f({a, b, ...{c, e}} = {a: 1, b: 2, c: 3, d: 4, e: 5}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+ assert.sameValue(e, 5);
+
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-obj-nested-rest.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-obj-nested-rest.js
new file mode 100644
index 0000000000..4d14202a8f
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-obj-nested-rest.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-nested-rest.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment and object rest desconstruction is allowed in that case. (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+async function* f({a, b, ...{c, ...rest}} = {a: 1, b: 2, c: 3, d: 4, e: 5}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+
+ assert.sameValue(rest.d, 4);
+ assert.sameValue(rest.e, 5);
+
+ verifyEnumerable(rest, "d");
+ verifyWritable(rest, "d");
+ verifyConfigurable(rest, "d");
+
+ verifyEnumerable(rest, "e");
+ verifyWritable(rest, "e");
+ verifyConfigurable(rest, "e");
+
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-obj-own-property.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-obj-own-property.js
new file mode 100644
index 0000000000..9126d241b4
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-obj-own-property.js
@@ -0,0 +1,34 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-own-property.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Rest object contains just soruce object's own properties (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+---*/
+var o = Object.create({ x: 1, y: 2 });
+o.z = 3;
+
+
+var callCount = 0;
+async function* f({ x, ...{y , z} } = o) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-skip-non-enumerable.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..b31494e1f0
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+
+var callCount = 0;
+async function* f({...rest} = o) {
+ assert.sameValue(rest.a, 3);
+ assert.sameValue(rest.b, 4);
+ assert.sameValue(rest.x, undefined);
+
+ verifyEnumerable(rest, "a");
+ verifyWritable(rest, "a");
+ verifyConfigurable(rest, "a");
+
+ verifyEnumerable(rest, "b");
+ verifyWritable(rest, "b");
+ verifyConfigurable(rest, "b");
+
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-val-obj.js b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..1941e7c625
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-dflt-obj-ptrn-rest-val-obj.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/async-gen-func-decl-dflt.template
+/*---
+description: Rest object contains just unextracted data (async generator function declaration (default parameter))
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+async function* f({a, b, ...rest} = {x: 1, y: 2, a: 5, b: 3}) {
+ assert.sameValue(rest.x, 1);
+ assert.sameValue(rest.y, 2);
+ assert.sameValue(rest.a, undefined);
+ assert.sameValue(rest.b, undefined);
+
+ verifyEnumerable(rest, "x");
+ verifyWritable(rest, "x");
+ verifyConfigurable(rest, "x");
+
+ verifyEnumerable(rest, "y");
+ verifyWritable(rest, "y");
+ verifyConfigurable(rest, "y");
+
+ callCount = callCount + 1;
+};
+f().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-empty.js b/test/language/statements/async-generator/dstr-obj-ptrn-empty.js
new file mode 100644
index 0000000000..1acac49c1d
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-empty.js
@@ -0,0 +1,40 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ Runtime Semantics: BindingInitialization
+
+ ObjectBindingPattern : { }
+
+ 1. Return NormalCompletion(empty).
+---*/
+var accessCount = 0;
+var obj = Object.defineProperty({}, 'attr', {
+ get: function() {
+ accessCount += 1;
+ }
+});
+
+
+var callCount = 0;
+async function* f({}) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+};
+f(obj).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/async-generator/dstr-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..0ba29307fa
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-arrow.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+async function* f({ arrow = () => {} }) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+};
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/async-generator/dstr-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..606b389840
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-class.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+async function* f({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } }) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+};
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/async-generator/dstr-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..9eaec4f566
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-cover.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+async function* f({ cover = (function () {}), xCover = (0, function() {}) }) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+};
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/async-generator/dstr-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..be8b08c4c9
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-fn.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+async function* f({ fn = function () {}, xFn = function x() {} }) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+};
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/async-generator/dstr-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..ce0291beb8
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-fn-name-gen.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ d. If IsAnonymousFunctionDefinition(Initializer) is true, then
+ i. Let hasNameProperty be HasOwnProperty(v, "name").
+ ii. ReturnIfAbrupt(hasNameProperty).
+ iii. If hasNameProperty is false, perform SetFunctionName(v,
+ bindingId).
+---*/
+
+
+var callCount = 0;
+async function* f({ gen = function* () {}, xGen = function* x() {} }) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+};
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-id-init-skipped.js b/test/language/statements/async-generator/dstr-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..9dc2a56e42
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,45 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 6. If Initializer is present and v is undefined, then
+ [...]
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+
+var callCount = 0;
+async function* f({ w = counter(), x = counter(), y = counter(), z = counter() }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+};
+f({ w: null, x: 0, y: false, z: '' }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-id-trailing-comma.js b/test/language/statements/async-generator/dstr-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..1d52cd21cb
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,35 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+async function* f({ x, }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+};
+f({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-prop-ary-init.js b/test/language/statements/async-generator/dstr-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..03a6c1ddbe
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+async function* f({ w: [x, y, z] = [4, 5, 6] }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/async-generator/dstr-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..b7fe733228
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,35 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+async function* f({ x: [y], }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+};
+f({ x: [45] }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-prop-ary.js b/test/language/statements/async-generator/dstr-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..ea967b7086
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-prop-ary.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+async function* f({ w: [x, y, z] = [4, 5, 6] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f({ w: [7, undefined, ] }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/async-generator/dstr-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..e76966c182
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,57 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init-skipped.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ BindingElement : BindingPattern Initializeropt
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+---*/
+var initCount = 0;
+function counter() {
+ initCount += 1;
+}
+
+
+var callCount = 0;
+async function* f({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() }) {
+ assert.sameValue(t, null);
+ assert.sameValue(v, 0);
+ assert.sameValue(x, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+
+ assert.throws(ReferenceError, function() {
+ s;
+ });
+ assert.throws(ReferenceError, function() {
+ u;
+ });
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ assert.throws(ReferenceError, function() {
+ y;
+ });
+ callCount = callCount + 1;
+};
+f({ s: null, u: 0, w: false, y: '' }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-prop-id-init.js b/test/language/statements/async-generator/dstr-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..00b23fe5a8
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-prop-id-init.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f({ x: y = 33 }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f({ }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/async-generator/dstr-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..dfdd7b7260
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,39 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-trailing-comma.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+async function* f({ x: y, }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-prop-id.js b/test/language/statements/async-generator/dstr-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..0e2c2944fb
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-prop-id.js
@@ -0,0 +1,38 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Binding as specified via property name and identifier (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+async function* f({ x: y }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+};
+f({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-prop-obj-init.js b/test/language/statements/async-generator/dstr-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..65e6a7471a
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,44 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ a. Let defaultValue be the result of evaluating Initializer.
+ b. Let v be GetValue(defaultValue).
+ c. ReturnIfAbrupt(v).
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+async function* f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f({ w: undefined }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-prop-obj.js b/test/language/statements/async-generator/dstr-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..a1f32e4e4d
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-prop-obj.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ [...]
+ 3. If Initializer is present and v is undefined, then
+ [...]
+ 4. Return the result of performing BindingInitialization for BindingPattern
+ passing v and environment as arguments.
+---*/
+
+
+var callCount = 0;
+async function* f({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+};
+f({ w: { x: undefined, z: 7 } }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-rest-getter.js b/test/language/statements/async-generator/dstr-obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..412edc4ff8
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-rest-getter.js
@@ -0,0 +1,36 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+---*/
+var count = 0;
+
+
+var callCount = 0;
+async function* f({...x}) {
+ assert.sameValue(x.v, 2);
+ assert.sameValue(count, 1);
+
+ verifyEnumerable(x, "v");
+ verifyWritable(x, "v");
+ verifyConfigurable(x, "v");
+
+ callCount = callCount + 1;
+};
+f({ get v() { count++; return 2; } }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-rest-nested-obj.js b/test/language/statements/async-generator/dstr-obj-ptrn-rest-nested-obj.js
new file mode 100644
index 0000000000..a0d7ed2da5
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-rest-nested-obj.js
@@ -0,0 +1,33 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-nested-obj.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+---*/
+var obj = {a: 3, b: 4};
+
+
+var callCount = 0;
+async function* f({a, b, ...{c, e}}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+ assert.sameValue(e, 5);
+
+ callCount = callCount + 1;
+};
+f({a: 1, b: 2, c: 3, d: 4, e: 5}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-rest-obj-nested-rest.js b/test/language/statements/async-generator/dstr-obj-ptrn-rest-obj-nested-rest.js
new file mode 100644
index 0000000000..349abc7bd2
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-rest-obj-nested-rest.js
@@ -0,0 +1,43 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-nested-rest.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment and object rest desconstruction is allowed in that case. (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+async function* f({a, b, ...{c, ...rest}}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+
+ assert.sameValue(rest.d, 4);
+ assert.sameValue(rest.e, 5);
+
+ verifyEnumerable(rest, "d");
+ verifyWritable(rest, "d");
+ verifyConfigurable(rest, "d");
+
+ verifyEnumerable(rest, "e");
+ verifyWritable(rest, "e");
+ verifyConfigurable(rest, "e");
+
+ callCount = callCount + 1;
+};
+f({a: 1, b: 2, c: 3, d: 4, e: 5}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-rest-obj-own-property.js b/test/language/statements/async-generator/dstr-obj-ptrn-rest-obj-own-property.js
new file mode 100644
index 0000000000..d272b6b872
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-rest-obj-own-property.js
@@ -0,0 +1,34 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-own-property.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Rest object contains just soruce object's own properties (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+---*/
+var o = Object.create({ x: 1, y: 2 });
+o.z = 3;
+
+
+var callCount = 0;
+async function* f({ x, ...{y , z} }) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ callCount = callCount + 1;
+};
+f(o).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-rest-skip-non-enumerable.js b/test/language/statements/async-generator/dstr-obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..053aa0714c
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,42 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+
+var callCount = 0;
+async function* f({...rest}) {
+ assert.sameValue(rest.a, 3);
+ assert.sameValue(rest.b, 4);
+ assert.sameValue(rest.x, undefined);
+
+ verifyEnumerable(rest, "a");
+ verifyWritable(rest, "a");
+ verifyConfigurable(rest, "a");
+
+ verifyEnumerable(rest, "b");
+ verifyWritable(rest, "b");
+ verifyConfigurable(rest, "b");
+
+ callCount = callCount + 1;
+};
+f(o).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/async-generator/dstr-obj-ptrn-rest-val-obj.js b/test/language/statements/async-generator/dstr-obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..bd3c92eb34
--- /dev/null
+++ b/test/language/statements/async-generator/dstr-obj-ptrn-rest-val-obj.js
@@ -0,0 +1,41 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/async-gen-func-decl.template
+/*---
+description: Rest object contains just unextracted data (async generator function declaration)
+esid: sec-asyncgenerator-definitions-instantiatefunctionobject
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ AsyncGeneratorDeclaration : async [no LineTerminator here] function * BindingIdentifier
+ ( FormalParameters ) { AsyncGeneratorBody }
+
+ [...]
+ 3. Let F be ! AsyncGeneratorFunctionCreate(Normal, FormalParameters, AsyncGeneratorBody,
+ scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+async function* f({a, b, ...rest}) {
+ assert.sameValue(rest.x, 1);
+ assert.sameValue(rest.y, 2);
+ assert.sameValue(rest.a, undefined);
+ assert.sameValue(rest.b, undefined);
+
+ verifyEnumerable(rest, "x");
+ verifyWritable(rest, "x");
+ verifyConfigurable(rest, "x");
+
+ verifyEnumerable(rest, "y");
+ verifyWritable(rest, "y");
+ verifyConfigurable(rest, "y");
+
+ callCount = callCount + 1;
+};
+f({x: 1, y: 2, a: 5, b: 3}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-init-iter-close.js b/test/language/statements/class/dstr-async-gen-meth-ary-init-iter-close.js
new file mode 100644
index 0000000000..971d7aee31
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-init-iter-close.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x]) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(iter).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-init-iter-no-close.js b/test/language/statements/class/dstr-async-gen-meth-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..b099cd4e30
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-init-iter-no-close.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x]) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(iter).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-name-iter-val.js b/test/language/statements/class/dstr-async-gen-meth-ary-name-iter-val.js
new file mode 100644
index 0000000000..65f44000a6
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-name-iter-val.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: SingleNameBinding with normal value iteration (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x, y, z]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([1, 2, 3]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..90710d35b0
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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([]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..e43c7ab9d5
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[x, y, z] = [4, 5, 6]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([[7, 8, 9]]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..7e590b213d
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,75 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[,] = g()]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..1c5f8a5f3c
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,72 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[,] = g()]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([[]]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..74a2c48c28
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[] = function() { initCount += 1; return iter; }()]) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..fd71d0ff49
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[] = function() { initCount += 1; }()]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([[23]]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..71da1f6309
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,72 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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([]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..1cf6cb7d32
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,75 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[...x] = function() { initCount += 1; }()]) {
+ 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([values]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..39626746dd
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,67 @@
+// 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-async-gen-meth.template
+/*---
+description: Destructuring initializer with an exhausted iterator (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x = 23]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..b1b6c2257e
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([arrow = () => {}]) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..b23ac69158
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }]) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..8f1a264b5a
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([cover = (function () {}), xCover = (0, function() {})]) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..353bddb748
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([fn = function () {}, xFn = function x() {}]) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..4ebe7abf1f
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([gen = function* () {}, xGen = function* x() {}]) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-hole.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..fc89627807
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,63 @@
+// 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-async-gen-meth.template
+/*---
+description: Destructuring initializer with a "hole" (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x = 23]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([,]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..3cfd54f449
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,72 @@
+// 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-async-gen-meth.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([w = counter(), x = counter(), y = counter(), z = counter()]) {
+ 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([null, 0, false, '']).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-undef.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..c6d233632d
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,66 @@
+// 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-async-gen-meth.template
+/*---
+description: Destructuring initializer with an undefined value (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x = 23]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([undefined]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..3a42d3ca48
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding when value iteration completes (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x]) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-done.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..1fdc18e597
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,65 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([_, x]) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-val.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..e0cdddb5a2
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,76 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x, y, z]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([1, 2, 3]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-obj-id-init.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..29957f1613
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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([]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-obj-id.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..c9953ba55c
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([{ x, y, z } = { x: 44, y: 55, z: 66 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([{ x: 11, y: 22, z: 33 }]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..747a5b48cc
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,78 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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([]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..014fd4a05f
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,78 @@
+// 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-async-gen-meth.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }]) {
+ 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([{ u: 777, w: 888, y: 999 }]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elision-exhausted.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..e91832bf42
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Elision accepts exhausted iterator (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([,]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(iter).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elision.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elision.js
new file mode 100644
index 0000000000..28f2134002
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-elision.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Elision advances iterator (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([,]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(g()).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-empty.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-empty.js
new file mode 100644
index 0000000000..993be0402e
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-empty.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([]) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(iter).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-ary-elem.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..0a2299455b
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Rest element containing an array BindingElementList pattern (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[x, y, z]]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([3, 4, 5]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-ary-elision.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..624f98e60c
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Rest element containing an elision (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[,]]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(g()).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-ary-empty.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..26ecac88d8
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Rest element containing an "empty" array pattern (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[]]) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(iter).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-ary-rest.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..4fac70ab1f
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Rest element containing a rest element (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[...x]]) {
+ 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(values).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-id-elision.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..aa2846b3db
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Rest element following elision elements (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([ , , ...x]) {
+ 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(values).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-id-exhausted.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..f7a15b6e1c
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: RestElement applied to an exhausted iterator (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([, , ...x]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([1, 2]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-id.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..668383f248
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-id.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Lone rest element (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...x]) {
+ 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(values).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-init-ary.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..288251a04e
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-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/cls-decl-async-gen-meth.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[ x ] = []]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-init-id.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..0b2ead8567
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-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/cls-decl-async-gen-meth.template
+/*---
+description: Reset element (identifier) does not support initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...x = []]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-init-obj.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..ada13130e2
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-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/cls-decl-async-gen-meth.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...{ x } = []]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-not-final-ary.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..ebbe0da0b8
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-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/cls-decl-async-gen-meth.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[x], y]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([1, 2, 3]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-not-final-id.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..57a60181c1
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-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/cls-decl-async-gen-meth.template
+/*---
+description: Rest element (identifier) may not be followed by any element (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...x, y]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([1, 2, 3]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-not-final-obj.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..0c70accd82
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-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/cls-decl-async-gen-meth.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...{ x }, y]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([1, 2, 3]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-obj-id.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..ecb66df2b9
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Rest element containing an object binding pattern (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...{ length }]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method([1, 2, 3]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..3e0779d5d4
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,75 @@
+// 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-async-gen-meth.template
+/*---
+description: Rest element containing an object binding pattern (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...{ 0: v, 1: w, 2: x, 3: y, length: z }]) {
+ 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([7, 8, 9]).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-init-iter-close.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..509297472c
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-init-iter-close.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-init-iter-no-close.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..165739e017
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-name-iter-val.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..f831f4b754
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-name-iter-val.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..7f1de2ac6d
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..8ce5771d2c
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..2570c05f6e
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,75 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..4c3a20d90c
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,72 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..d715a34008
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..c062013c51
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..172e4bcb0f
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,72 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..09454924b4
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,75 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..276ea236f1
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,67 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..55def785f2
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..ea499bd48d
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..1122d40ee0
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..5dc7f84d95
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..c17a229874
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..48c8681172
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,63 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..00ec84a141
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,72 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..517f08d4d5
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,66 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..cea4d69164
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..a6ed2eda4f
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,65 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..c10f527263
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,76 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..96b8384100
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..440899c967
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..6bd7cf2759
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,78 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..dc8c8a700a
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,78 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elision-exhausted.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..1cb23e5ee9
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Elision accepts exhausted iterator (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elision.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..5739c3934f
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-elision.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Elision advances iterator (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-empty.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..0508d7e055
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-empty.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elem.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..06b68ca018
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elision.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..07d07bde9b
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Rest element containing an elision (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-empty.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..932cf50322
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-rest.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..0806d0dc7e
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Rest element containing a rest element (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-elision.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..b10b101067
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Rest element following elision elements (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..f2a1fda284
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..513261a5dc
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Lone rest element (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-ary.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..7ec5676611
--- /dev/null
+++ b/test/language/statements/class/dstr-async-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/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-id.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..2647de0198
--- /dev/null
+++ b/test/language/statements/class/dstr-async-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/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-obj.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..9fd3f7c49c
--- /dev/null
+++ b/test/language/statements/class/dstr-async-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/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..00031c00cb
--- /dev/null
+++ b/test/language/statements/class/dstr-async-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/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-id.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..519ac4b21b
--- /dev/null
+++ b/test/language/statements/class/dstr-async-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/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..2056407da6
--- /dev/null
+++ b/test/language/statements/class/dstr-async-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/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-id.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..505e99c99c
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..ab09cc6560
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,75 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Rest element containing an object binding pattern (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-empty.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..17cbc4607d
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-empty.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..ea04fe7261
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,67 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..f591d5e3dc
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..705fc87c64
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..b953503f1b
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..2fa14d8077
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-skipped.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..fa26f479bf
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-trailing-comma.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..0dde36800f
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+class C {
+ async *method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-init.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..19fc663504
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..da474893cc
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,61 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+class C {
+ async *method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..30f0939992
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..0a65da7d85
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,83 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..fd7f432640
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+class C {
+ async *method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..1469a69bb3
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,65 @@
+// 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-async-gen-meth-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+class C {
+ async *method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..30e06ce756
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Binding as specified via property name and identifier (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+class C {
+ async *method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj-init.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..a00c5f409a
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..d63d4dd5e7
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-getter.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..231e8cc8a6
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-getter.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var count = 0;
+
+
+var callCount = 0;
+class C {
+ async *method({...x} = { get v() { count++; return 2; } }) {
+ assert.sameValue(x.v, 2);
+ assert.sameValue(count, 1);
+
+ verifyEnumerable(x, "v");
+ verifyWritable(x, "v");
+ verifyConfigurable(x, "v");
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-nested-obj.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-nested-obj.js
new file mode 100644
index 0000000000..c883e41aad
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-nested-obj.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-nested-obj.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var obj = {a: 3, b: 4};
+
+
+var callCount = 0;
+class C {
+ async *method({a, b, ...{c, e}} = {a: 1, b: 2, c: 3, d: 4, e: 5}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+ assert.sameValue(e, 5);
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-nested-rest.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-nested-rest.js
new file mode 100644
index 0000000000..b920ff4d9f
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-nested-rest.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-nested-rest.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment and object rest desconstruction is allowed in that case. (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+class C {
+ async *method({a, b, ...{c, ...rest}} = {a: 1, b: 2, c: 3, d: 4, e: 5}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+
+ assert.sameValue(rest.d, 4);
+ assert.sameValue(rest.e, 5);
+
+ verifyEnumerable(rest, "d");
+ verifyWritable(rest, "d");
+ verifyConfigurable(rest, "d");
+
+ verifyEnumerable(rest, "e");
+ verifyWritable(rest, "e");
+ verifyConfigurable(rest, "e");
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-own-property.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-own-property.js
new file mode 100644
index 0000000000..26bda7d252
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-obj-own-property.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-own-property.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Rest object contains just soruce object's own properties (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = Object.create({ x: 1, y: 2 });
+o.z = 3;
+
+
+var callCount = 0;
+class C {
+ async *method({ x, ...{y , z} } = o) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-skip-non-enumerable.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..eee29c151c
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+
+var callCount = 0;
+class C {
+ async *method({...rest} = o) {
+ assert.sameValue(rest.a, 3);
+ assert.sameValue(rest.b, 4);
+ assert.sameValue(rest.x, undefined);
+
+ verifyEnumerable(rest, "a");
+ verifyWritable(rest, "a");
+ verifyConfigurable(rest, "a");
+
+ verifyEnumerable(rest, "b");
+ verifyWritable(rest, "b");
+ verifyConfigurable(rest, "b");
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-val-obj.js b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..a99f649b59
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-dflt-obj-ptrn-rest-val-obj.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-dflt.template
+/*---
+description: Rest object contains just unextracted data (class expression async generator method (default parameters))
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+class C {
+ async *method({a, b, ...rest} = {x: 1, y: 2, a: 5, b: 3}) {
+ assert.sameValue(rest.x, 1);
+ assert.sameValue(rest.y, 2);
+ assert.sameValue(rest.a, undefined);
+ assert.sameValue(rest.b, undefined);
+
+ verifyEnumerable(rest, "x");
+ verifyWritable(rest, "x");
+ verifyConfigurable(rest, "x");
+
+ verifyEnumerable(rest, "y");
+ verifyWritable(rest, "y");
+ verifyConfigurable(rest, "y");
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-empty.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-empty.js
new file mode 100644
index 0000000000..05b485944d
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-empty.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({}) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(obj).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..ecb36a6e95
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,67 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ arrow = () => {} }) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({}).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..21d622f78c
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } }) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({}).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..1c1b3136e7
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ cover = (function () {}), xCover = (0, function() {}) }) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({}).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..6e63efb390
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ fn = function () {}, xFn = function x() {} }) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({}).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..3e1ff458f5
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ gen = function* () {}, xGen = function* x() {} }) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({}).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-skipped.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..e4dc36c030
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ w = counter(), x = counter(), y = counter(), z = counter() }) {
+ 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({ w: null, x: 0, y: false, z: '' }).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-trailing-comma.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..3be34ff8e3
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+class C {
+ async *method({ x, }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ x: 23 }).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-ary-init.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..cb6710d4e6
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *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({}).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..5dd5955600
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,61 @@
+// 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-async-gen-meth.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+class C {
+ async *method({ x: [y], }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ x: [45] }).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-ary.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..e9817a2186
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-ary.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ w: [x, y, z] = [4, 5, 6] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ w: [7, undefined, ] }).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..3fbca41b59
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,83 @@
+// 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-async-gen-meth.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() }) {
+ 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({ s: null, u: 0, w: false, y: '' }).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-id-init.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..7b0eb74b22
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-id-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+class C {
+ async *method({ x: y = 33 }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ }).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..5627827c52
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,65 @@
+// 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-async-gen-meth.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+class C {
+ async *method({ x: y, }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ x: 23 }).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-id.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..563e2fd702
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-id.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Binding as specified via property name and identifier (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+class C {
+ async *method({ x: y }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ x: 23 }).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-obj-init.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..fc6875ba17
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ w: undefined }).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-obj.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..1f1e0114b0
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-prop-obj.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 {
+ async *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ w: { x: undefined, z: 7 } }).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-getter.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..2727252e4d
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-getter.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var count = 0;
+
+
+var callCount = 0;
+class C {
+ async *method({...x}) {
+ assert.sameValue(x.v, 2);
+ assert.sameValue(count, 1);
+
+ verifyEnumerable(x, "v");
+ verifyWritable(x, "v");
+ verifyConfigurable(x, "v");
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({ get v() { count++; return 2; } }).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-nested-obj.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-nested-obj.js
new file mode 100644
index 0000000000..27bdd8a09e
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-nested-obj.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-nested-obj.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var obj = {a: 3, b: 4};
+
+
+var callCount = 0;
+class C {
+ async *method({a, b, ...{c, e}}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+ assert.sameValue(e, 5);
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({a: 1, b: 2, c: 3, d: 4, e: 5}).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-obj-nested-rest.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-obj-nested-rest.js
new file mode 100644
index 0000000000..4cd1594eb0
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-obj-nested-rest.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-nested-rest.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment and object rest desconstruction is allowed in that case. (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+class C {
+ async *method({a, b, ...{c, ...rest}}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+
+ assert.sameValue(rest.d, 4);
+ assert.sameValue(rest.e, 5);
+
+ verifyEnumerable(rest, "d");
+ verifyWritable(rest, "d");
+ verifyConfigurable(rest, "d");
+
+ verifyEnumerable(rest, "e");
+ verifyWritable(rest, "e");
+ verifyConfigurable(rest, "e");
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({a: 1, b: 2, c: 3, d: 4, e: 5}).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-obj-own-property.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-obj-own-property.js
new file mode 100644
index 0000000000..8763dae822
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-obj-own-property.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-own-property.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Rest object contains just soruce object's own properties (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = Object.create({ x: 1, y: 2 });
+o.z = 3;
+
+
+var callCount = 0;
+class C {
+ async *method({ x, ...{y , z} }) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(o).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-skip-non-enumerable.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..80ba9c2b19
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+
+var callCount = 0;
+class C {
+ async *method({...rest}) {
+ assert.sameValue(rest.a, 3);
+ assert.sameValue(rest.b, 4);
+ assert.sameValue(rest.x, undefined);
+
+ verifyEnumerable(rest, "a");
+ verifyWritable(rest, "a");
+ verifyConfigurable(rest, "a");
+
+ verifyEnumerable(rest, "b");
+ verifyWritable(rest, "b");
+ verifyConfigurable(rest, "b");
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method(o).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-val-obj.js b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..f4586e4536
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-obj-ptrn-rest-val-obj.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth.template
+/*---
+description: Rest object contains just unextracted data (class expression method)
+esid: sec-class-definitions-runtime-semantics-evaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ i. Let status be the result of performing
+ PropertyDefinitionEvaluation for m with arguments proto and
+ false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+class C {
+ async *method({a, b, ...rest}) {
+ assert.sameValue(rest.x, 1);
+ assert.sameValue(rest.y, 2);
+ assert.sameValue(rest.a, undefined);
+ assert.sameValue(rest.b, undefined);
+
+ verifyEnumerable(rest, "x");
+ verifyWritable(rest, "x");
+ verifyConfigurable(rest, "x");
+
+ verifyEnumerable(rest, "y");
+ verifyWritable(rest, "y");
+ verifyConfigurable(rest, "y");
+
+ callCount = callCount + 1;
+ }
+};
+
+new C().method({x: 1, y: 2, a: 5, b: 3}).then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-init-iter-close.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-init-iter-close.js
new file mode 100644
index 0000000000..0acabede3c
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-init-iter-close.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x]) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-init-iter-no-close.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..434c1ea3a9
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-init-iter-no-close.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x]) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-name-iter-val.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-name-iter-val.js
new file mode 100644
index 0000000000..9bb3af7f67
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-name-iter-val.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: SingleNameBinding with normal value iteration (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x, y, z]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..96f3525a9b
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..0ca4813a94
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[x, y, z] = [4, 5, 6]]) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, 8);
+ assert.sameValue(z, 9);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([[7, 8, 9]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..247933d9e8
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,75 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[,] = g()]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..dbbdf046a5
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,72 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[,] = g()]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([[]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..6ecf68c3fa
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[] = function() { initCount += 1; return iter; }()]) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..6562516ccb
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[] = function() { initCount += 1; }()]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([[23]]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..bf7a479631
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,72 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..0713b6f13f
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,75 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[...x] = function() { initCount += 1; }()]) {
+ 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([values]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..4260c271d0
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,67 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Destructuring initializer with an exhausted iterator (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x = 23]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..40ccaff0a4
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([arrow = () => {}]) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..53996d1325
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }]) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..9560c161bc
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([cover = (function () {}), xCover = (0, function() {})]) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..e16f6bf9bc
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([fn = function () {}, xFn = function x() {}]) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..077f273e00
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([gen = function* () {}, xGen = function* x() {}]) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-hole.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..299d12d74d
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,63 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Destructuring initializer with a "hole" (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x = 23]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+C.method([,]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..04d9896193
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,72 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([w = counter(), x = counter(), y = counter(), z = counter()]) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([null, 0, false, '']).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-undef.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..2ab5aa22ee
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,66 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Destructuring initializer with an undefined value (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x = 23]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([undefined]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..759d5f8a96
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding when value iteration completes (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x]) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-done.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..f3b97222ba
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,65 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([_, x]) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-val.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..7fcbe12ccc
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,76 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x, y, z]) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, 2);
+ assert.sameValue(z, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-id-init.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..9c931e8ef9
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-id.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..5287ef34fb
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([{ x, y, z } = { x: 44, y: 55, z: 66 }]) {
+ assert.sameValue(x, 11);
+ assert.sameValue(y, 22);
+ assert.sameValue(z, 33);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([{ x: 11, y: 22, z: 33 }]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..b8ba607689
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,78 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..448b98c7f6
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,78 @@
+// 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-async-gen-meth-static.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([{ u: v, w: x, y: z } = { u: 444, w: 555, y: 666 }]) {
+ 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([{ u: 777, w: 888, y: 999 }]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elision-exhausted.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..4a1a7c44dd
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Elision accepts exhausted iterator (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([,]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elision.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elision.js
new file mode 100644
index 0000000000..3c774aaec4
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-elision.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Elision advances iterator (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([,]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(g()).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-empty.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-empty.js
new file mode 100644
index 0000000000..ce4c617821
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-empty.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([]) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-elem.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..f0c4ed6389
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Rest element containing an array BindingElementList pattern (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[x, y, z]]) {
+ assert.sameValue(x, 3);
+ assert.sameValue(y, 4);
+ assert.sameValue(z, 5);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([3, 4, 5]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-elision.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..0ed9b96993
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Rest element containing an elision (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[,]]) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(g()).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-empty.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..82db405ca1
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Rest element containing an "empty" array pattern (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[]]) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(iter).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-rest.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..dc9f696463
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Rest element containing a rest element (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[...x]]) {
+ 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(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-id-elision.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..d4453921c3
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Rest element following elision elements (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([ , , ...x]) {
+ 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(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-id-exhausted.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..68808fda45
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: RestElement applied to an exhausted iterator (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([, , ...x]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([1, 2]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-id.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..d032debdc3
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-id.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Lone rest element (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...x]) {
+ 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(values).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-init-ary.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..8428f3847a
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-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/cls-decl-async-gen-meth-static.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[ x ] = []]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-init-id.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..4a85bed753
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-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/cls-decl-async-gen-meth-static.template
+/*---
+description: Reset element (identifier) does not support initializer (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...x = []]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-init-obj.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..7c9005089f
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-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/cls-decl-async-gen-meth-static.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...{ x } = []]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method([]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-not-final-ary.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..a648ca0609
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-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/cls-decl-async-gen-meth-static.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[x], y]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-not-final-id.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..1591d14f38
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-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/cls-decl-async-gen-meth-static.template
+/*---
+description: Rest element (identifier) may not be followed by any element (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...x, y]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-not-final-obj.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..c864ce2bf5
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-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/cls-decl-async-gen-meth-static.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...{ x }, y]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-obj-id.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..4ca10c23e0
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Rest element containing an object binding pattern (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...{ length }]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method([1, 2, 3]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..b5cfc7f23e
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,75 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Rest element containing an object binding pattern (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...{ 0: v, 1: w, 2: x, 3: y, length: z }]) {
+ 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([7, 8, 9]).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-init-iter-close.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-init-iter-close.js
new file mode 100644
index 0000000000..0d4a313914
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-init-iter-close.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-close.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Iterator is closed when not exhausted by pattern evaluation (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x] = iter) {
+ assert.sameValue(doneCallCount, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-init-iter-no-close.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-init-iter-no-close.js
new file mode 100644
index 0000000000..7372ecd8a9
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-init-iter-no-close.js
@@ -0,0 +1,77 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-init-iter-no-close.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Iterator is not closed when exhausted by pattern evaluation (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x] = iter) {
+ assert.sameValue(doneCallCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-name-iter-val.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-name-iter-val.js
new file mode 100644
index 0000000000..f9fc253e01
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-name-iter-val.js
@@ -0,0 +1,76 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-name-iter-val.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding with normal value iteration (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
new file mode 100644
index 0000000000..d624720415
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-init.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
new file mode 100644
index 0000000000..dedf0a4da2
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elem-iter.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
new file mode 100644
index 0000000000..fbd603859c
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-init.js
@@ -0,0 +1,75 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[,] = g()] = []) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
new file mode 100644
index 0000000000..0d457b9c0f
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-elision-iter.js
@@ -0,0 +1,72 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[,] = g()] = [[]]) {
+ assert.sameValue(callCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
new file mode 100644
index 0000000000..0498324292
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-init.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[] = function() { initCount += 1; return iter; }()] = []) {
+ assert.sameValue(initCount, 1);
+ assert.sameValue(iterCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
new file mode 100644
index 0000000000..66b50ef55f
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-empty-iter.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([[] = function() { initCount += 1; }()] = [[23]]) {
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
new file mode 100644
index 0000000000..4f5d744682
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-init.js
@@ -0,0 +1,72 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is used (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
new file mode 100644
index 0000000000..5da5b53718
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-ary-rest-iter.js
@@ -0,0 +1,75 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with array binding pattern and initializer is not used (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
new file mode 100644
index 0000000000..12d825379b
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-exhausted.js
@@ -0,0 +1,67 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an exhausted iterator (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x = 23] = []) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..88d780d967
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-arrow.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to arrow functions (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([arrow = () => {}] = []) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
new file mode 100644
index 0000000000..4d59ccbc89
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-class.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([cls = class {}, xCls = class X {}, xCls2 = class { static name() {} }] = []) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..5b24acd36a
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-cover.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding does assign name to "anonymous" functions "through" cover grammar (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([cover = (function () {}), xCover = (0, function() {})] = []) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..68c8a14ae6
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-fn.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([fn = function () {}, xFn = function x() {}] = []) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..a2db9b5fa5
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-fn-name-gen.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([gen = function* () {}, xGen = function* x() {}] = []) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
new file mode 100644
index 0000000000..ba106fa33a
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-hole.js
@@ -0,0 +1,63 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with a "hole" (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x = 23] = [,]) {
+ assert.sameValue(x, 23);
+ // another statement
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
new file mode 100644
index 0000000000..9fcf825bc6
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-skipped.js
@@ -0,0 +1,72 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
new file mode 100644
index 0000000000..66ddcf0473
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-init-undef.js
@@ -0,0 +1,66 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer with an undefined value (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x = 23] = [undefined]) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
new file mode 100644
index 0000000000..520436ad04
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-complete.js
@@ -0,0 +1,70 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration completes (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
new file mode 100644
index 0000000000..98bb986297
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-done.js
@@ -0,0 +1,65 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([_, x] = []) {
+ assert.sameValue(x, undefined);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
new file mode 100644
index 0000000000..786f031455
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-id-iter-val.js
@@ -0,0 +1,76 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding when value iteration was completed previously (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
new file mode 100644
index 0000000000..12b5b5d0b2
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-id-init.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js
new file mode 100644
index 0000000000..c5b4fa4d9f
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-id.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elem-obj-id.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
new file mode 100644
index 0000000000..2e0239c9f5
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id-init.js
@@ -0,0 +1,78 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is used (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
new file mode 100644
index 0000000000..fed7135c44
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elem-obj-prop-id.js
@@ -0,0 +1,78 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: BindingElement with object binding pattern and initializer is not used (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js
new file mode 100644
index 0000000000..9cae8854d2
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elision-exhausted.js
@@ -0,0 +1,73 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision-exhausted.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Elision accepts exhausted iterator (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([,] = iter) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elision.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elision.js
new file mode 100644
index 0000000000..dc16bba938
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-elision.js
@@ -0,0 +1,82 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-elision.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Elision advances iterator (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [generator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([,] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-empty.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-empty.js
new file mode 100644
index 0000000000..234218c13e
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-empty.js
@@ -0,0 +1,65 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: No iteration occurs for an "empty" array binding pattern (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([] = iter) {
+ assert.sameValue(iterations, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js
new file mode 100644
index 0000000000..d78a806b10
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-elem.js
@@ -0,0 +1,89 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elem.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an array BindingElementList pattern (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js
new file mode 100644
index 0000000000..2a0f14f21f
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-elision.js
@@ -0,0 +1,95 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-elision.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an elision (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[,]] = g()) {
+ assert.sameValue(first, 1);
+ assert.sameValue(second, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js
new file mode 100644
index 0000000000..3292890825
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-empty.js
@@ -0,0 +1,78 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-empty.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an "empty" array pattern (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [generators, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[]] = iter) {
+ assert.sameValue(iterations, 1);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js
new file mode 100644
index 0000000000..d5e81a3bc9
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-ary-rest.js
@@ -0,0 +1,74 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-ary-rest.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Rest element containing a rest element (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js
new file mode 100644
index 0000000000..c002603237
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id-elision.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-elision.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Rest element following elision elements (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
new file mode 100644
index 0000000000..8b9402782c
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id-exhausted.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id-exhausted.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: RestElement applied to an exhausted iterator (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [Symbol.iterator, async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([, , ...x] = [1, 2]) {
+ assert(Array.isArray(x));
+ assert.sameValue(x.length, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id.js
new file mode 100644
index 0000000000..bc7a29b576
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-id.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-id.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Lone rest element (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-init-ary.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-init-ary.js
new file mode 100644
index 0000000000..3cd5500f24
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-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/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Reset element (nested array pattern) does not support initializer (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[ x ] = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-init-id.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-init-id.js
new file mode 100644
index 0000000000..df5515ce99
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-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/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Reset element (identifier) does not support initializer (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...x = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-init-obj.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-init-obj.js
new file mode 100644
index 0000000000..ab907fa9e5
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-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/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Reset element (nested object pattern) does not support initializer (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...{ x } = []] = []) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-not-final-ary.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-not-final-ary.js
new file mode 100644
index 0000000000..7f49eea2ee
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-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/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Rest element (array binding pattern) may not be followed by any element (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...[x], y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-not-final-id.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-not-final-id.js
new file mode 100644
index 0000000000..6c5cef52d6
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-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/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Rest element (identifier) may not be followed by any element (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...x, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-not-final-obj.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-not-final-obj.js
new file mode 100644
index 0000000000..99ab54282d
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-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/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Rest element (object binding pattern) may not be followed by any element (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+negative:
+ phase: early
+ type: 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.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...{ x }, y] = [1, 2, 3]) {
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js
new file mode 100644
index 0000000000..cc3d08701b
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-obj-id.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/ary-ptrn-rest-obj-id.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method([...{ length }] = [1, 2, 3]) {
+ assert.sameValue(length, 3);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
new file mode 100644
index 0000000000..eca28ce5b2
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-ary-ptrn-rest-obj-prop-id.js
@@ -0,0 +1,75 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Rest element containing an object binding pattern (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-empty.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-empty.js
new file mode 100644
index 0000000000..943ef404d0
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-empty.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({} = obj) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..403d5d0aa5
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,67 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ arrow = () => {} } = {}) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..856417cd52
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } } = {}) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..bd5cfddd92
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ cover = (function () {}), xCover = (0, function() {}) } = {}) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..0c72542f5f
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ fn = function () {}, xFn = function x() {} } = {}) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..604fe5e0b4
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ gen = function* () {}, xGen = function* x() {} } = {}) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..c2dfc5d5ec
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..43ee3792ac
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+class C {
+ static async *method({ x, } = { x: 23 }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..ac8a21613b
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..3a82f86707
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,61 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+class C {
+ static async *method({ x: [y], } = { x: [45] }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..199d28273b
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-ary.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..6153975a09
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,83 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-init.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..8a5667cd26
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+class C {
+ static async *method({ x: y = 33 } = { }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..0275c810fa
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,65 @@
+// 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-async-gen-meth-static-dflt.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+class C {
+ static async *method({ x: y, } = { x: 23 }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..e67b4e4027
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-id.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Binding as specified via property name and identifier (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+class C {
+ static async *method({ x: y } = { x: 23 }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..f3c4352609
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-obj.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..6d0c1aeddc
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-prop-obj.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-getter.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..ffac67afe4
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-getter.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var count = 0;
+
+
+var callCount = 0;
+class C {
+ static async *method({...x} = { get v() { count++; return 2; } }) {
+ assert.sameValue(x.v, 2);
+ assert.sameValue(count, 1);
+
+ verifyEnumerable(x, "v");
+ verifyWritable(x, "v");
+ verifyConfigurable(x, "v");
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-nested-obj.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-nested-obj.js
new file mode 100644
index 0000000000..8b69e00b2f
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-nested-obj.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-nested-obj.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var obj = {a: 3, b: 4};
+
+
+var callCount = 0;
+class C {
+ static async *method({a, b, ...{c, e}} = {a: 1, b: 2, c: 3, d: 4, e: 5}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+ assert.sameValue(e, 5);
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-obj-nested-rest.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-obj-nested-rest.js
new file mode 100644
index 0000000000..4871e43f33
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-obj-nested-rest.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-nested-rest.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment and object rest desconstruction is allowed in that case. (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+class C {
+ static async *method({a, b, ...{c, ...rest}} = {a: 1, b: 2, c: 3, d: 4, e: 5}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+
+ assert.sameValue(rest.d, 4);
+ assert.sameValue(rest.e, 5);
+
+ verifyEnumerable(rest, "d");
+ verifyWritable(rest, "d");
+ verifyConfigurable(rest, "d");
+
+ verifyEnumerable(rest, "e");
+ verifyWritable(rest, "e");
+ verifyConfigurable(rest, "e");
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-obj-own-property.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-obj-own-property.js
new file mode 100644
index 0000000000..6aa846a4b7
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-obj-own-property.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-own-property.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Rest object contains just soruce object's own properties (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = Object.create({ x: 1, y: 2 });
+o.z = 3;
+
+
+var callCount = 0;
+class C {
+ static async *method({ x, ...{y , z} } = o) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-skip-non-enumerable.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..9064a3cadc
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+
+var callCount = 0;
+class C {
+ static async *method({...rest} = o) {
+ assert.sameValue(rest.a, 3);
+ assert.sameValue(rest.b, 4);
+ assert.sameValue(rest.x, undefined);
+
+ verifyEnumerable(rest, "a");
+ verifyWritable(rest, "a");
+ verifyConfigurable(rest, "a");
+
+ verifyEnumerable(rest, "b");
+ verifyWritable(rest, "b");
+ verifyConfigurable(rest, "b");
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-val-obj.js b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..ba7b3c5ee1
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-dflt-obj-ptrn-rest-val-obj.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static-dflt.template
+/*---
+description: Rest object contains just unextracted data (static class expression async generator method (default parameter))
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+class C {
+ static async *method({a, b, ...rest} = {x: 1, y: 2, a: 5, b: 3}) {
+ assert.sameValue(rest.x, 1);
+ assert.sameValue(rest.y, 2);
+ assert.sameValue(rest.a, undefined);
+ assert.sameValue(rest.b, undefined);
+
+ verifyEnumerable(rest, "x");
+ verifyWritable(rest, "x");
+ verifyConfigurable(rest, "x");
+
+ verifyEnumerable(rest, "y");
+ verifyWritable(rest, "y");
+ verifyConfigurable(rest, "y");
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method().next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-empty.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-empty.js
new file mode 100644
index 0000000000..6a237980f3
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-empty.js
@@ -0,0 +1,66 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-empty.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: No property access occurs for an "empty" object binding pattern (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({}) {
+ assert.sameValue(accessCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method(obj).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-arrow.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-arrow.js
new file mode 100644
index 0000000000..87ef2ea1a7
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-arrow.js
@@ -0,0 +1,67 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding assigns `name` to arrow functions (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ arrow = () => {} }) {
+ assert.sameValue(arrow.name, 'arrow');
+ callCount = callCount + 1;
+ }
+};
+
+C.method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-class.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-class.js
new file mode 100644
index 0000000000..e4bc1d06ac
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-class.js
@@ -0,0 +1,69 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" classes (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ cls = class {}, xCls = class X {}, xCls2 = class { static name() {} } }) {
+ assert.sameValue(cls.name, 'cls');
+ assert.notSameValue(xCls.name, 'xCls');
+ assert.notSameValue(xCls2.name, 'xCls2');
+ callCount = callCount + 1;
+ }
+};
+
+C.method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-cover.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-cover.js
new file mode 100644
index 0000000000..98a65299d6
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-cover.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding assigns `name` to "anonymous" functions "through" cover grammar (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ cover = (function () {}), xCover = (0, function() {}) }) {
+ assert.sameValue(cover.name, 'cover');
+ assert.notSameValue(xCover.name, 'xCover');
+ callCount = callCount + 1;
+ }
+};
+
+C.method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-fn.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-fn.js
new file mode 100644
index 0000000000..f81ebbe6ad
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-fn.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" functions (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ fn = function () {}, xFn = function x() {} }) {
+ assert.sameValue(fn.name, 'fn');
+ assert.notSameValue(xFn.name, 'xFn');
+ callCount = callCount + 1;
+ }
+};
+
+C.method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-gen.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-gen.js
new file mode 100644
index 0000000000..db6ac1b1eb
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-fn-name-gen.js
@@ -0,0 +1,68 @@
+// 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-async-gen-meth-static.template
+/*---
+description: SingleNameBinding assigns name to "anonymous" generator functions (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ gen = function* () {}, xGen = function* x() {} }) {
+ assert.sameValue(gen.name, 'gen');
+ assert.notSameValue(xGen.name, 'xGen');
+ callCount = callCount + 1;
+ }
+};
+
+C.method({}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-skipped.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-skipped.js
new file mode 100644
index 0000000000..08b78a9f27
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-init-skipped.js
@@ -0,0 +1,71 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-init-skipped.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ w = counter(), x = counter(), y = counter(), z = counter() }) {
+ assert.sameValue(w, null);
+ assert.sameValue(x, 0);
+ assert.sameValue(y, false);
+ assert.sameValue(z, '');
+ assert.sameValue(initCount, 0);
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ w: null, x: 0, y: false, z: '' }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-trailing-comma.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-trailing-comma.js
new file mode 100644
index 0000000000..6b092be1cd
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-id-trailing-comma.js
@@ -0,0 +1,61 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-id-trailing-comma.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+class C {
+ static async *method({ x, }) {
+ assert.sameValue(x, 23);
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary-init.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary-init.js
new file mode 100644
index 0000000000..04c490c985
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary-init.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary-init.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Object binding pattern with "nested" array binding pattern using initializer (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *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().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary-trailing-comma.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary-trailing-comma.js
new file mode 100644
index 0000000000..8741f7a68e
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary-trailing-comma.js
@@ -0,0 +1,61 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+class C {
+ static async *method({ x: [y], }) {
+ assert.sameValue(y,45);
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ x: [45] }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary.js
new file mode 100644
index 0000000000..e14578d6f7
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-ary.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-ary.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Object binding pattern with "nested" array binding pattern not using initializer (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ w: [x, y, z] = [4, 5, 6] }) {
+ assert.sameValue(x, 7);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, undefined);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ w: [7, undefined, ] }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-init-skipped.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-init-skipped.js
new file mode 100644
index 0000000000..cef656eedc
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-init-skipped.js
@@ -0,0 +1,83 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Destructuring initializer is not evaluated when value is not `undefined` (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ s: t = counter(), u: v = counter(), w: x = counter(), y: z = counter() }) {
+ 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({ s: null, u: 0, w: false, y: '' }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-init.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-init.js
new file mode 100644
index 0000000000..ca0e9cb726
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-init.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id-init.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Binding as specified via property name, identifier, and initializer (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+class C {
+ static async *method({ x: y = 33 }) {
+ assert.sameValue(y, 33);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-trailing-comma.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-trailing-comma.js
new file mode 100644
index 0000000000..ec9f401098
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-id-trailing-comma.js
@@ -0,0 +1,65 @@
+// 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-async-gen-meth-static.template
+/*---
+description: Trailing comma is allowed following BindingPropertyList (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3 Destructuring Binding Patterns
+
+ ObjectBindingPattern[Yield] :
+ { }
+ { BindingPropertyList[?Yield] }
+ { BindingPropertyList[?Yield] , }
+---*/
+
+
+var callCount = 0;
+class C {
+ static async *method({ x: y, }) {
+ assert.sameValue(y, 23);
+
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-id.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-id.js
new file mode 100644
index 0000000000..2b7325f916
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-id.js
@@ -0,0 +1,64 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-id.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Binding as specified via property name and identifier (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 13.3.3.7 Runtime Semantics: KeyedBindingInitialization
+
+ SingleNameBinding : BindingIdentifier Initializeropt
+
+ [...]
+ 8. Return InitializeReferencedBinding(lhs, v).
+---*/
+
+
+var callCount = 0;
+class C {
+ static async *method({ x: y }) {
+ assert.sameValue(y, 23);
+ assert.throws(ReferenceError, function() {
+ x;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ x: 23 }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-obj-init.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-obj-init.js
new file mode 100644
index 0000000000..5fcba9918e
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-obj-init.js
@@ -0,0 +1,70 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj-init.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Object binding pattern with "nested" object binding pattern using initializer (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+ assert.sameValue(x, 4);
+ assert.sameValue(y, 5);
+ assert.sameValue(z, 6);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ w: undefined }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-obj.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-obj.js
new file mode 100644
index 0000000000..ac135c076e
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-prop-obj.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-prop-obj.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Object binding pattern with "nested" object binding pattern not using initializer (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+
+ 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 async *method({ w: { x, y, z } = { x: 4, y: 5, z: 6 } }) {
+ assert.sameValue(x, undefined);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 7);
+
+ assert.throws(ReferenceError, function() {
+ w;
+ });
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ w: { x: undefined, z: 7 } }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-getter.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-getter.js
new file mode 100644
index 0000000000..488a7b633a
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-getter.js
@@ -0,0 +1,62 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-getter.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Getter is called when obj is being deconstructed to a rest Object (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var count = 0;
+
+
+var callCount = 0;
+class C {
+ static async *method({...x}) {
+ assert.sameValue(x.v, 2);
+ assert.sameValue(count, 1);
+
+ verifyEnumerable(x, "v");
+ verifyWritable(x, "v");
+ verifyConfigurable(x, "v");
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method({ get v() { count++; return 2; } }).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-nested-obj.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-nested-obj.js
new file mode 100644
index 0000000000..d74fdc5a58
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-nested-obj.js
@@ -0,0 +1,59 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-nested-obj.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment. (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var obj = {a: 3, b: 4};
+
+
+var callCount = 0;
+class C {
+ static async *method({a, b, ...{c, e}}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+ assert.sameValue(e, 5);
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method({a: 1, b: 2, c: 3, d: 4, e: 5}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-obj-nested-rest.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-obj-nested-rest.js
new file mode 100644
index 0000000000..dbcb286bf2
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-obj-nested-rest.js
@@ -0,0 +1,69 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-nested-rest.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: When DestructuringAssignmentTarget is an object literal, it should be parsed parsed as a DestructuringAssignmentPattern and evaluated as a destructuring assignment and object rest desconstruction is allowed in that case. (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+class C {
+ static async *method({a, b, ...{c, ...rest}}) {
+ assert.sameValue(a, 1);
+ assert.sameValue(b, 2);
+ assert.sameValue(c, 3);
+
+ assert.sameValue(rest.d, 4);
+ assert.sameValue(rest.e, 5);
+
+ verifyEnumerable(rest, "d");
+ verifyWritable(rest, "d");
+ verifyConfigurable(rest, "d");
+
+ verifyEnumerable(rest, "e");
+ verifyWritable(rest, "e");
+ verifyConfigurable(rest, "e");
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method({a: 1, b: 2, c: 3, d: 4, e: 5}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-obj-own-property.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-obj-own-property.js
new file mode 100644
index 0000000000..ed60d93cd3
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-obj-own-property.js
@@ -0,0 +1,60 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-obj-own-property.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Rest object contains just soruce object's own properties (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = Object.create({ x: 1, y: 2 });
+o.z = 3;
+
+
+var callCount = 0;
+class C {
+ static async *method({ x, ...{y , z} }) {
+ assert.sameValue(x, 1);
+ assert.sameValue(y, undefined);
+ assert.sameValue(z, 3);
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method(o).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-skip-non-enumerable.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-skip-non-enumerable.js
new file mode 100644
index 0000000000..cf82019590
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-skip-non-enumerable.js
@@ -0,0 +1,68 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-skip-non-enumerable.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Rest object doesn't contain non-enumerable properties (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+var o = {a: 3, b: 4};
+Object.defineProperty(o, "x", { value: 4, enumerable: false });
+
+
+var callCount = 0;
+class C {
+ static async *method({...rest}) {
+ assert.sameValue(rest.a, 3);
+ assert.sameValue(rest.b, 4);
+ assert.sameValue(rest.x, undefined);
+
+ verifyEnumerable(rest, "a");
+ verifyWritable(rest, "a");
+ verifyConfigurable(rest, "a");
+
+ verifyEnumerable(rest, "b");
+ verifyWritable(rest, "b");
+ verifyConfigurable(rest, "b");
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method(o).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
diff --git a/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-val-obj.js b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-val-obj.js
new file mode 100644
index 0000000000..d6f96a814e
--- /dev/null
+++ b/test/language/statements/class/dstr-async-gen-meth-static-obj-ptrn-rest-val-obj.js
@@ -0,0 +1,67 @@
+// This file was procedurally generated from the following sources:
+// - src/dstr-binding/obj-ptrn-rest-val-obj.case
+// - src/dstr-binding/default/cls-decl-async-gen-meth-static.template
+/*---
+description: Rest object contains just unextracted data (static class expression async generator method)
+esid: sec-runtime-semantics-bindingclassdeclarationevaluation
+features: [async-iteration]
+flags: [generated, async]
+includes: [propertyHelper.js]
+info: |
+ ClassDeclaration : class BindingIdentifier ClassTail
+
+ 1. Let className be StringValue of BindingIdentifier.
+ 2. Let value be the result of ClassDefinitionEvaluation of ClassTail with
+ argument className.
+ [...]
+
+ 14.5.14 Runtime Semantics: ClassDefinitionEvaluation
+
+ 21. For each ClassElement m in order from methods
+ a. If IsStatic of m is false, then
+ b. Else,
+ Let status be the result of performing PropertyDefinitionEvaluation for
+ m with arguments F and false.
+ [...]
+
+ Runtime Semantics: PropertyDefinitionEvaluation
+
+ AsyncGeneratorMethod :
+ async [no LineTerminator here] * PropertyName ( UniqueFormalParameters )
+ { AsyncGeneratorBody }
+
+ 1. Let propKey be the result of evaluating PropertyName.
+ 2. ReturnIfAbrupt(propKey).
+ 3. If the function code for this AsyncGeneratorMethod is strict mode code, let strict be true.
+ Otherwise let strict be false.
+ 4. Let scope be the running execution context's LexicalEnvironment.
+ 5. Let closure be ! AsyncGeneratorFunctionCreate(Method, UniqueFormalParameters,
+ AsyncGeneratorBody, scope, strict).
+ [...]
+
+---*/
+
+
+var callCount = 0;
+class C {
+ static async *method({a, b, ...rest}) {
+ assert.sameValue(rest.x, 1);
+ assert.sameValue(rest.y, 2);
+ assert.sameValue(rest.a, undefined);
+ assert.sameValue(rest.b, undefined);
+
+ verifyEnumerable(rest, "x");
+ verifyWritable(rest, "x");
+ verifyConfigurable(rest, "x");
+
+ verifyEnumerable(rest, "y");
+ verifyWritable(rest, "y");
+ verifyConfigurable(rest, "y");
+
+ callCount = callCount + 1;
+ }
+};
+
+C.method({x: 1, y: 2, a: 5, b: 3}).next().then(() => {
+ assert.sameValue(callCount, 1, 'invoked exactly once');
+}).then($DONE, $DONE);
--
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