From d93bee595e5ae80ce53b56b0ab49ddb64f1b0cc7 Mon Sep 17 00:00:00 2001
From: arai-a <arai_a@mac.com>
Date: Tue, 28 Feb 2017 08:40:19 +0900
Subject: [PATCH] Add some tests for execution order for yield* in async
generator (#844)
---
.../async-generator/yield-star-async-next.js | 244 ++++++++++++++++++
.../yield-star-async-return.js | 222 ++++++++++++++++
.../async-generator/yield-star-async-throw.js | 227 ++++++++++++++++
.../async-generator/yield-star-sync-next.js | 204 +++++++++++++++
.../async-generator/yield-star-sync-return.js | 176 +++++++++++++
.../async-generator/yield-star-sync-throw.js | 182 +++++++++++++
6 files changed, 1255 insertions(+)
create mode 100644 test/language/statements/async-generator/yield-star-async-next.js
create mode 100644 test/language/statements/async-generator/yield-star-async-return.js
create mode 100644 test/language/statements/async-generator/yield-star-async-throw.js
create mode 100644 test/language/statements/async-generator/yield-star-sync-next.js
create mode 100644 test/language/statements/async-generator/yield-star-sync-return.js
create mode 100644 test/language/statements/async-generator/yield-star-sync-throw.js
diff --git a/test/language/statements/async-generator/yield-star-async-next.js b/test/language/statements/async-generator/yield-star-async-next.js
new file mode 100644
index 0000000000..3f4e2ef96a
--- /dev/null
+++ b/test/language/statements/async-generator/yield-star-async-next.js
@@ -0,0 +1,244 @@
+/*---
+ author: Tooru Fujisawa [:arai] <arai_a@mac.com>
+ esid: pending
+ description: execution order for yield* with async iterator and next()
+ info: >
+ YieldExpression: yield * AssignmentExpression
+
+ ...
+ 2. Let value be ? GetValue(exprRef).
+ 3. Let generatorKind be ! GetGeneratorKind().
+ 4. Let iterator be ? GetIterator(value, generatorKind).
+ 5. Let received be NormalCompletion(undefined).
+ 6. Repeat
+ a. If received.[[Type]] is normal, then
+ i. Let innerResult be ? IteratorNext(iterator, received.[[Value]]).
+ ii. Let innerResult be ? Invoke(iterator, "next",
+ « received.[[Value]] »).
+ iii. If generatorKind is async, then set innerResult to
+ ? Await(innerResult).
+ ...
+ v. Let done be ? IteratorComplete(innerResult).
+ vi. If done is true, then
+ 1. Return ? IteratorValue(innerResult).
+ vii. Let received be GeneratorYield(innerResult).
+ ...
+
+ GetIterator ( obj [ , hint ] )
+
+ ...
+ 3. If hint is async,
+ a. Set method to ? GetMethod(obj, @@asyncIterator).
+ b. If method is undefined,
+ i. Let syncMethod be ? GetMethod(obj, @@iterator).
+ ii. Let syncIterator be ? Call(syncMethod, obj).
+ iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
+ ...
+
+ GeneratorYield ( iterNextObj )
+
+ ...
+ 10. If generatorKind is async,
+ a. Let value be IteratorValue(iterNextObj).
+ b. Let done be IteratorComplete(iterNextObj).
+ c. Return ! AsyncGeneratorResolve(generator, value, done).
+ ...
+
+ flags: [async]
+---*/
+
+var log = [];
+var iter = {
+ get [Symbol.iterator]() {
+ log.push({ name: "get [Symbol.iterator]" });
+ },
+ get [Symbol.asyncIterator]() {
+ log.push({
+ name: "get [Symbol.asyncIterator]",
+ thisValue: this
+ });
+ return function() {
+ log.push({
+ name: "call [Symbol.asyncIterator]",
+ thisValue: this,
+ args: [...arguments]
+ });
+ var nextCount = 0;
+ return {
+ name: "asyncIterator",
+ get next() {
+ log.push({
+ name: "get next",
+ thisValue: this
+ });
+ return function() {
+ log.push({
+ name: "call next",
+ thisValue: this,
+ args: [...arguments]
+ });
+
+ nextCount++;
+ if (nextCount == 1) {
+ return {
+ name: "next-promise-1",
+ get then() {
+ log.push({
+ name: "get next then (1)",
+ thisValue: this
+ });
+ return function(resolve) {
+ log.push({
+ name: "call next then (1)",
+ thisValue: this,
+ args: [...arguments]
+ });
+
+ resolve({
+ name: "next-result-1",
+ get value() {
+ log.push({
+ name: "get next value (1)",
+ thisValue: this
+ });
+ return "next-value-1";
+ },
+ get done() {
+ log.push({
+ name: "get next done (1)",
+ thisValue: this
+ });
+ return false;
+ }
+ });
+ };
+ }
+ };
+ }
+
+ return {
+ name: "next-promise-2",
+ get then() {
+ log.push({
+ name: "get next then (2)",
+ thisValue: this
+ });
+ return function(resolve) {
+ log.push({
+ name: "call next then (2)",
+ thisValue: this,
+ args: [...arguments]
+ });
+
+ resolve({
+ name: "next-result-2",
+ get value() {
+ log.push({
+ name: "get next value (2)",
+ thisValue: this
+ });
+ return "next-value-2";
+ },
+ get done() {
+ log.push({
+ name: "get next done (2)",
+ thisValue: this
+ });
+ return true;
+ }
+ });
+ };
+ }
+ };
+ };
+ }
+ };
+ };
+ }
+};
+var asyncIterator = (async function*() {
+ log.push({ name: "before yield*" });
+ var v = yield* iter;
+ log.push({
+ name: "after yield*",
+ value: v
+ });
+ return "return-value";
+})();
+
+assert.sameValue(log.length, 0, "log.length");
+
+asyncIterator.next("next-arg-1").then(v => {
+ assert.sameValue(log[0].name, "before yield*");
+
+ assert.sameValue(log[1].name, "get [Symbol.asyncIterator]");
+ assert.sameValue(log[1].thisValue, iter, "get [Symbol.asyncIterator] thisValue");
+
+ assert.sameValue(log[2].name, "call [Symbol.asyncIterator]");
+ assert.sameValue(log[2].thisValue, iter, "[Symbol.asyncIterator] thisValue");
+ assert.sameValue(log[2].args.length, 0, "[Symbol.asyncIterator] args.length");
+
+ assert.sameValue(log[3].name, "get next");
+ assert.sameValue(log[3].thisValue.name, "asyncIterator", "get next thisValue");
+
+ assert.sameValue(log[4].name, "call next");
+ assert.sameValue(log[4].thisValue.name, "asyncIterator", "next thisValue");
+ assert.sameValue(log[4].args.length, 1, "next args.length");
+ assert.sameValue(log[4].args[0], undefined, "next args[0]");
+
+ assert.sameValue(log[5].name, "get next then (1)");
+ assert.sameValue(log[5].thisValue.name, "next-promise-1", "get next then thisValue");
+
+ assert.sameValue(log[6].name, "call next then (1)");
+ assert.sameValue(log[6].thisValue.name, "next-promise-1", "next then thisValue");
+ assert.sameValue(log[6].args.length, 2, "next then args.length");
+ assert.sameValue(typeof log[6].args[0], "function", "next then args[0]");
+ assert.sameValue(typeof log[6].args[1], "function", "next then args[1]");
+
+ assert.sameValue(log[7].name, "get next done (1)");
+ assert.sameValue(log[7].thisValue.name, "next-result-1", "get next done thisValue");
+
+ assert.sameValue(log[8].name, "get next value (1)");
+ assert.sameValue(log[8].thisValue.name, "next-result-1", "get next value thisValue");
+
+ assert.sameValue(log[9].name, "get next done (1)");
+ assert.sameValue(log[9].thisValue.name, "next-result-1", "get next done thisValue");
+
+ assert.sameValue(v.value, "next-value-1");
+ assert.sameValue(v.done, false);
+
+ assert.sameValue(log.length, 10, "log.length");
+
+ asyncIterator.next("next-arg-2").then(v => {
+ assert.sameValue(log[10].name, "get next");
+ assert.sameValue(log[10].thisValue.name, "asyncIterator", "get next thisValue");
+
+ assert.sameValue(log[11].name, "call next");
+ assert.sameValue(log[11].thisValue.name, "asyncIterator", "next thisValue");
+ assert.sameValue(log[11].args.length, 1, "next args.length");
+ assert.sameValue(log[11].args[0], "next-arg-2", "next args[0]");
+
+ assert.sameValue(log[12].name, "get next then (2)");
+ assert.sameValue(log[12].thisValue.name, "next-promise-2", "get next then thisValue");
+
+ assert.sameValue(log[13].name, "call next then (2)");
+ assert.sameValue(log[13].thisValue.name, "next-promise-2", "next then thisValue");
+ assert.sameValue(log[13].args.length, 2, "next then args.length");
+ assert.sameValue(typeof log[13].args[0], "function", "next then args[0]");
+ assert.sameValue(typeof log[13].args[1], "function", "next then args[1]");
+
+ assert.sameValue(log[14].name, "get next done (2)");
+ assert.sameValue(log[14].thisValue.name, "next-result-2", "get next done thisValue");
+
+ assert.sameValue(log[15].name, "get next value (2)");
+ assert.sameValue(log[15].thisValue.name, "next-result-2", "get next value thisValue");
+
+ assert.sameValue(log[16].name, "after yield*");
+ assert.sameValue(log[16].value, "next-value-2");
+
+ assert.sameValue(v.value, "return-value");
+ assert.sameValue(v.done, true);
+
+ assert.sameValue(log.length, 17, "log.length");
+ }).then($DONE, $DONE);
+}).catch($DONE);
diff --git a/test/language/statements/async-generator/yield-star-async-return.js b/test/language/statements/async-generator/yield-star-async-return.js
new file mode 100644
index 0000000000..7fe06a6dc0
--- /dev/null
+++ b/test/language/statements/async-generator/yield-star-async-return.js
@@ -0,0 +1,222 @@
+/*---
+ author: Tooru Fujisawa [:arai] <arai_a@mac.com>
+ esid: pending
+ description: execution order for yield* with async iterator and return()
+ info: >
+ YieldExpression: yield * AssignmentExpression
+
+ ...
+ 6. Repeat
+ ...
+ c. Else,
+ i. Assert: received.[[Type]] is return.
+ ii. Let return be ? GetMethod(iterator, "return").
+ iii. If return is undefined, return Completion(received).
+ iv. Let innerReturnResult be ? Call(return, iterator,
+ « received.[[Value]] »).
+ v. If generatorKind is async, then set innerReturnResult to
+ ? Await(innerReturnResult).
+ ...
+ vii. Let done be ? IteratorComplete(innerReturnResult).
+ viii. If done is true, then
+ 1. Let value be ? IteratorValue(innerReturnResult).
+ 2. Return Completion{[[Type]]: return, [[Value]]: value,
+ [[Target]]: empty}.
+ ix. Let received be GeneratorYield(innerResult).
+
+ GeneratorYield ( iterNextObj )
+
+ ...
+ 10. If generatorKind is async,
+ a. Let value be IteratorValue(iterNextObj).
+ b. Let done be IteratorComplete(iterNextObj).
+ c. Return ! AsyncGeneratorResolve(generator, value, done).
+ ...
+
+ flags: [async]
+---*/
+
+var log = [];
+var iter = {
+ [Symbol.asyncIterator]() {
+ var returnCount = 0;
+ return {
+ name: 'asyncIterator',
+ get next() {
+ log.push({ name: "get next" });
+ return function() {
+ return {
+ value: "next-value-1",
+ done: false
+ };
+ };
+ },
+ get return() {
+ log.push({
+ name: "get return",
+ thisValue: this
+ });
+ return function() {
+ log.push({
+ name: "call return",
+ thisValue: this,
+ args: [...arguments]
+ });
+
+ returnCount++;
+ if (returnCount == 1) {
+ return {
+ name: "return-promise-1",
+ get then() {
+ log.push({
+ name: "get return then (1)",
+ thisValue: this
+ });
+ return function(resolve) {
+ log.push({
+ name: "call return then (1)",
+ thisValue: this,
+ args: [...arguments]
+ });
+
+ resolve({
+ name: "return-result-1",
+ get value() {
+ log.push({
+ name: "get return value (1)",
+ thisValue: this
+ });
+ return "return-value-1";
+ },
+ get done() {
+ log.push({
+ name: "get return done (1)",
+ thisValue: this
+ });
+ return false;
+ }
+ });
+ };
+ }
+ };
+ }
+
+ return {
+ name: "return-promise-2",
+ get then() {
+ log.push({
+ name: "get return then (2)",
+ thisValue: this
+ });
+ return function(resolve) {
+ log.push({
+ name: "call return then (2)",
+ thisValue: this,
+ args: [...arguments]
+ });
+
+ resolve({
+ name: "return-result-2",
+ get value() {
+ log.push({
+ name: "get return value (2)",
+ thisValue: this
+ });
+ return "return-value-2";
+ },
+ get done() {
+ log.push({
+ name: "get return done (2)",
+ thisValue: this
+ });
+ return true;
+ }
+ });
+ };
+ }
+ };
+ };
+ }
+ };
+ }
+};
+var asyncIterator = (async function*() {
+ log.push({ name: "before yield*" });
+ yield* iter;
+})();
+
+assert.sameValue(log.length, 0, "log.length");
+
+asyncIterator.next().then(v => {
+ assert.sameValue(log[0].name, "before yield*");
+
+ assert.sameValue(log[1].name, "get next");
+
+ assert.sameValue(v.value, "next-value-1");
+ assert.sameValue(v.done, false);
+
+ assert.sameValue(log.length, 2, "log.length");
+
+ asyncIterator.return("return-arg-1").then(v => {
+ assert.sameValue(log[2].name, "get return");
+ assert.sameValue(log[2].thisValue.name, "asyncIterator", "get return thisValue");
+
+ assert.sameValue(log[3].name, "call return");
+ assert.sameValue(log[3].thisValue.name, "asyncIterator", "return thisValue");
+ assert.sameValue(log[3].args.length, 1, "return args.length");
+ assert.sameValue(log[3].args[0], "return-arg-1", "return args[0]");
+
+ assert.sameValue(log[4].name, "get return then (1)");
+ assert.sameValue(log[4].thisValue.name, "return-promise-1", "get return then thisValue");
+
+ assert.sameValue(log[5].name, "call return then (1)");
+ assert.sameValue(log[5].thisValue.name, "return-promise-1", "return then thisValue");
+ assert.sameValue(log[5].args.length, 2, "return then args.length");
+ assert.sameValue(typeof log[5].args[0], "function", "return then args[0]");
+ assert.sameValue(typeof log[5].args[1], "function", "return then args[1]");
+
+ assert.sameValue(log[6].name, "get return done (1)");
+ assert.sameValue(log[6].thisValue.name, "return-result-1", "get return done thisValue");
+
+ assert.sameValue(log[7].name, "get return value (1)");
+ assert.sameValue(log[7].thisValue.name, "return-result-1", "get return value thisValue");
+
+ assert.sameValue(log[8].name, "get return done (1)");
+ assert.sameValue(log[8].thisValue.name, "return-result-1", "get return done thisValue");
+
+ assert.sameValue(v.value, "return-value-1");
+ assert.sameValue(v.done, false);
+
+ assert.sameValue(log.length, 9, "log.length");
+
+ asyncIterator.return("return-arg-2").then(v => {
+ assert.sameValue(log[9].name, "get return");
+ assert.sameValue(log[9].thisValue.name, "asyncIterator", "get return thisValue");
+
+ assert.sameValue(log[10].name, "call return");
+ assert.sameValue(log[10].thisValue.name, "asyncIterator", "return thisValue");
+ assert.sameValue(log[10].args.length, 1, "return args.length");
+ assert.sameValue(log[10].args[0], "return-arg-2", "return args[0]");
+
+ assert.sameValue(log[11].name, "get return then (2)");
+ assert.sameValue(log[11].thisValue.name, "return-promise-2", "get return then thisValue");
+
+ assert.sameValue(log[12].name, "call return then (2)");
+ assert.sameValue(log[12].thisValue.name, "return-promise-2", "return then thisValue");
+ assert.sameValue(log[12].args.length, 2, "return then args.length");
+ assert.sameValue(typeof log[12].args[0], "function", "return then args[0]");
+ assert.sameValue(typeof log[12].args[1], "function", "return then args[1]");
+
+ assert.sameValue(log[13].name, "get return done (2)");
+ assert.sameValue(log[13].thisValue.name, "return-result-2", "get return done thisValue");
+
+ assert.sameValue(log[14].name, "get return value (2)");
+ assert.sameValue(log[14].thisValue.name, "return-result-2", "get return value thisValue");
+
+ assert.sameValue(v.value, "return-value-2");
+ assert.sameValue(v.done, true);
+
+ assert.sameValue(log.length, 15, "log.length");
+ }).then($DONE, $DONE);
+ }).catch($DONE);
+}).catch($DONE);
diff --git a/test/language/statements/async-generator/yield-star-async-throw.js b/test/language/statements/async-generator/yield-star-async-throw.js
new file mode 100644
index 0000000000..7680503ff1
--- /dev/null
+++ b/test/language/statements/async-generator/yield-star-async-throw.js
@@ -0,0 +1,227 @@
+/*---
+ author: Tooru Fujisawa [:arai] <arai_a@mac.com>
+ esid: pending
+ description: execution order for yield* with async iterator and throw()
+ info: >
+ YieldExpression: yield * AssignmentExpression
+
+ ...
+ 6. Repeat
+ ...
+ b. Else if received.[[Type]] is throw, then
+ i. Let throw be ? GetMethod(iterator, "throw").
+ ii. If throw is not undefined, then
+ 1. Let innerResult be ? Call(throw, iterator, « received.[[Value]] »).
+ 2. If generatorKind is async, then set innerResult to
+ ? Await(innerResult).
+ ...
+ 5. Let done be ? IteratorComplete(innerResult).
+ 6. If done is true, then
+ a. Return ? IteratorValue(innerResult).
+ 7. Let received be GeneratorYield(innerResult).
+ ...
+
+ GeneratorYield ( iterNextObj )
+
+ ...
+ 10. If generatorKind is async,
+ a. Let value be IteratorValue(iterNextObj).
+ b. Let done be IteratorComplete(iterNextObj).
+ c. Return ! AsyncGeneratorResolve(generator, value, done).
+ ...
+
+ flags: [async]
+---*/
+
+var log = [];
+var iter = {
+ [Symbol.asyncIterator]() {
+ var throwCount = 0;
+ return {
+ name: "asyncIterator",
+ get next() {
+ log.push({ name: "get next" });
+ return function() {
+ return {
+ value: "next-value-1",
+ done: false
+ };
+ };
+ },
+ get throw() {
+ log.push({
+ name: "get throw",
+ thisValue: this
+ });
+ return function() {
+ log.push({
+ name: "call throw",
+ thisValue: this,
+ args: [...arguments]
+ });
+
+ throwCount++;
+ if (throwCount == 1) {
+ return {
+ name: "throw-promise-1",
+ get then() {
+ log.push({
+ name: "get throw then (1)",
+ thisValue: this
+ });
+ return function(resolve) {
+ log.push({
+ name: "call throw then (1)",
+ thisValue: this,
+ args: [...arguments]
+ });
+
+ resolve({
+ name: "throw-result-1",
+ get value() {
+ log.push({
+ name: "get throw value (1)",
+ thisValue: this
+ });
+ return "throw-value-1";
+ },
+ get done() {
+ log.push({
+ name: "get throw done (1)",
+ thisValue: this
+ });
+ return false;
+ }
+ });
+ };
+ }
+ };
+ }
+
+ return {
+ name: "throw-promise-2",
+ get then() {
+ log.push({
+ name: "get throw then (2)",
+ thisValue: this
+ });
+ return function(resolve) {
+ log.push({
+ name: "call throw then (2)",
+ thisValue: this,
+ args: [...arguments]
+ });
+
+ resolve({
+ name: "throw-result-2",
+ get value() {
+ log.push({
+ name: "get throw value (2)",
+ thisValue: this
+ });
+ return "throw-value-2";
+ },
+ get done() {
+ log.push({
+ name: "get throw done (2)",
+ thisValue: this
+ });
+ return true;
+ }
+ });
+ };
+ }
+ };
+ };
+ }
+ };
+ }
+};
+var asyncIterator = (async function*() {
+ log.push({ name: "before yield*" });
+ var v = yield* iter;
+ log.push({
+ name: "after yield*",
+ value: v
+ });
+ return "return-value";
+})();
+
+assert.sameValue(log.length, 0, "log.length");
+
+asyncIterator.next().then(v => {
+ assert.sameValue(log[0].name, "before yield*");
+
+ assert.sameValue(log[1].name, "get next");
+
+ assert.sameValue(v.value, "next-value-1");
+ assert.sameValue(v.done, false);
+
+ assert.sameValue(log.length, 2, "log.length");
+
+ asyncIterator.throw("throw-arg-1").then(v => {
+ assert.sameValue(log[2].name, "get throw");
+ assert.sameValue(log[2].thisValue.name, "asyncIterator", "get throw thisValue");
+
+ assert.sameValue(log[3].name, "call throw");
+ assert.sameValue(log[3].thisValue.name, "asyncIterator", "throw thisValue");
+ assert.sameValue(log[3].args.length, 1, "throw args.length");
+ assert.sameValue(log[3].args[0], "throw-arg-1", "throw args[0]");
+
+ assert.sameValue(log[4].name, "get throw then (1)");
+ assert.sameValue(log[4].thisValue.name, "throw-promise-1", "get throw thisValue");
+
+ assert.sameValue(log[5].name, "call throw then (1)");
+ assert.sameValue(log[5].thisValue.name, "throw-promise-1", "throw thisValue");
+ assert.sameValue(log[5].args.length, 2, "throw then args.length");
+ assert.sameValue(typeof log[5].args[0], "function", "throw then args[0]");
+ assert.sameValue(typeof log[5].args[1], "function", "throw then args[1]");
+
+ assert.sameValue(log[6].name, "get throw done (1)");
+ assert.sameValue(log[6].thisValue.name, "throw-result-1", "get throw done thisValue");
+
+ assert.sameValue(log[7].name, "get throw value (1)");
+ assert.sameValue(log[7].thisValue.name, "throw-result-1", "get throw value thisValue");
+
+ assert.sameValue(log[8].name, "get throw done (1)");
+ assert.sameValue(log[8].thisValue.name, "throw-result-1", "get throw done thisValue");
+
+ assert.sameValue(v.value, "throw-value-1");
+ assert.sameValue(v.done, false);
+
+ assert.sameValue(log.length, 9, "log.length");
+
+ asyncIterator.throw("throw-arg-2").then(v => {
+ assert.sameValue(log[9].name, "get throw");
+ assert.sameValue(log[9].thisValue.name, "asyncIterator", "get throw thisValue");
+
+ assert.sameValue(log[10].name, "call throw");
+ assert.sameValue(log[10].thisValue.name, "asyncIterator", "throw thisValue");
+ assert.sameValue(log[10].args.length, 1, "throw args.length");
+ assert.sameValue(log[10].args[0], "throw-arg-2", "throw args[0]");
+
+ assert.sameValue(log[11].name, "get throw then (2)");
+ assert.sameValue(log[11].thisValue.name, "throw-promise-2", "get throw thisValue");
+
+ assert.sameValue(log[12].name, "call throw then (2)");
+ assert.sameValue(log[12].thisValue.name, "throw-promise-2", "throw thisValue");
+ assert.sameValue(log[12].args.length, 2, "throw then args.length");
+ assert.sameValue(typeof log[12].args[0], "function", "throw then args[0]");
+ assert.sameValue(typeof log[12].args[1], "function", "throw then args[1]");
+
+ assert.sameValue(log[13].name, "get throw done (2)");
+ assert.sameValue(log[13].thisValue.name, "throw-result-2", "get throw done thisValue");
+
+ assert.sameValue(log[14].name, "get throw value (2)");
+ assert.sameValue(log[14].thisValue.name, "throw-result-2", "get throw value thisValue");
+
+ assert.sameValue(log[15].name, "after yield*");
+ assert.sameValue(log[15].value, "throw-value-2");
+
+ assert.sameValue(v.value, "return-value");
+ assert.sameValue(v.done, true);
+
+ assert.sameValue(log.length, 16, "log.length");
+ }).then($DONE, $DONE);
+ }).catch($DONE);
+}).catch($DONE);
diff --git a/test/language/statements/async-generator/yield-star-sync-next.js b/test/language/statements/async-generator/yield-star-sync-next.js
new file mode 100644
index 0000000000..3068f5429e
--- /dev/null
+++ b/test/language/statements/async-generator/yield-star-sync-next.js
@@ -0,0 +1,204 @@
+/*---
+ author: Tooru Fujisawa [:arai] <arai_a@mac.com>
+ esid: pending
+ description: execution order for yield* with sync iterator and next()
+ info: >
+ YieldExpression: yield * AssignmentExpression
+
+ ...
+ 2. Let value be ? GetValue(exprRef).
+ 3. Let generatorKind be ! GetGeneratorKind().
+ 4. Let iterator be ? GetIterator(value, generatorKind).
+ 5. Let received be NormalCompletion(undefined).
+ 6. Repeat
+ a. If received.[[Type]] is normal, then
+ i. Let innerResult be ? IteratorNext(iterator, received.[[Value]]).
+ ii. Let innerResult be ? Invoke(iterator, "next",
+ « received.[[Value]] »).
+ iii. If generatorKind is async, then set innerResult to
+ ? Await(innerResult).
+ ...
+ v. Let done be ? IteratorComplete(innerResult).
+ vi. If done is true, then
+ 1. Return ? IteratorValue(innerResult).
+ vii. Let received be GeneratorYield(innerResult).
+ ...
+
+ GetIterator ( obj [ , hint ] )
+
+ ...
+ 3. If hint is async,
+ a. Set method to ? GetMethod(obj, @@asyncIterator).
+ b. If method is undefined,
+ i. Let syncMethod be ? GetMethod(obj, @@iterator).
+ ii. Let syncIterator be ? Call(syncMethod, obj).
+ iii. Return ? CreateAsyncFromSyncIterator(syncIterator).
+ ...
+
+ %AsyncFromSyncIteratorPrototype%.next ( value )
+
+ ...
+ 5. Let nextResult be IteratorNext(syncIterator, value).
+ ...
+ 7. Let nextValue be IteratorValue(nextResult).
+ ...
+ 9. Let nextDone be IteratorComplete(nextResult).
+ ...
+ 12. Perform ! Call(valueWrapperCapability.[[Resolve]], undefined,
+ « nextValue »).
+ ...
+ 14. Set onFulfilled.[[Done]] to nextDone.
+ 15. Perform ! PerformPromiseThen(valueWrapperCapability.[[Promise]],
+ onFulfilled, undefined, promiseCapability).
+ ...
+
+ Async Iterator Value Unwrap Functions
+
+ 1. Return ! CreateIterResultObject(value, F.[[Done]]).
+
+ flags: [async]
+---*/
+
+var log = [];
+var iter = {
+ get [Symbol.iterator]() {
+ log.push({
+ name: "get [Symbol.iterator]",
+ thisValue: this
+ });
+ return function() {
+ log.push({
+ name: "call [Symbol.iterator]",
+ thisValue: this,
+ args: [...arguments]
+ });
+ var nextCount = 0;
+ return {
+ name: "syncIterator",
+ get next() {
+ log.push({
+ name: "get next",
+ thisValue: this
+ });
+ return function() {
+ log.push({
+ name: "call next",
+ thisValue: this,
+ args: [...arguments]
+ });
+
+ nextCount++;
+ if (nextCount == 1) {
+ return {
+ name: "next-result-1",
+ get value() {
+ log.push({
+ name: "get next value (1)",
+ thisValue: this
+ });
+ return "next-value-1";
+ },
+ get done() {
+ log.push({
+ name: "get next done (1)",
+ thisValue: this
+ });
+ return false;
+ }
+ };
+ }
+
+ return {
+ name: "next-result-2",
+ get value() {
+ log.push({
+ name: "get next value (2)",
+ thisValue: this
+ });
+ return "next-value-2";
+ },
+ get done() {
+ log.push({
+ name: "get next done (2)",
+ thisValue: this
+ });
+ return true;
+ }
+ };
+ };
+ }
+ };
+ };
+ },
+ get [Symbol.asyncIterator]() {
+ log.push({ name: "get [Symbol.asyncIterator]" });
+ return null;
+ }
+};
+var asyncIterator = (async function*() {
+ log.push({ name: "before yield*" });
+ var v = yield* iter;
+ log.push({
+ name: "after yield*",
+ value: v
+ });
+ return "return-value";
+})();
+
+assert.sameValue(log.length, 0, "log.length");
+
+asyncIterator.next("next-arg-1").then(v => {
+ assert.sameValue(log[0].name, "before yield*");
+
+ assert.sameValue(log[1].name, "get [Symbol.asyncIterator]");
+
+ assert.sameValue(log[2].name, "get [Symbol.iterator]");
+ assert.sameValue(log[2].thisValue, iter, "get [Symbol.iterator] thisValue");
+
+ assert.sameValue(log[3].name, "call [Symbol.iterator]");
+ assert.sameValue(log[3].thisValue, iter, "[Symbol.iterator] thisValue");
+ assert.sameValue(log[3].args.length, 0, "[Symbol.iterator] args.length");
+
+ assert.sameValue(log[4].name, "get next");
+ assert.sameValue(log[4].thisValue.name, "syncIterator", "get next thisValue");
+
+ assert.sameValue(log[5].name, "call next");
+ assert.sameValue(log[5].thisValue.name, "syncIterator", "next thisValue");
+ assert.sameValue(log[5].args.length, 1, "next args.length");
+ assert.sameValue(log[5].args[0], undefined, "next args[0]");
+
+ assert.sameValue(log[6].name, "get next value (1)");
+ assert.sameValue(log[6].thisValue.name, "next-result-1", "get next value thisValue");
+
+ assert.sameValue(log[7].name, "get next done (1)");
+ assert.sameValue(log[7].thisValue.name, "next-result-1", "get next done thisValue");
+
+ assert.sameValue(v.value, "next-value-1");
+ assert.sameValue(v.done, false);
+
+ assert.sameValue(log.length, 8, "log.length");
+
+ asyncIterator.next("next-arg-2").then(v => {
+ assert.sameValue(log[8].name, "get next");
+ assert.sameValue(log[8].thisValue.name, "syncIterator", "get next thisValue");
+
+ assert.sameValue(log[9].name, "call next");
+ assert.sameValue(log[9].thisValue.name, "syncIterator", "next thisValue");
+ assert.sameValue(log[9].args.length, 1, "next args.length");
+ assert.sameValue(log[9].args[0], "next-arg-2", "next args[0]");
+
+ assert.sameValue(log[10].name, "get next value (2)");
+ assert.sameValue(log[10].thisValue.name, "next-result-2", "get next value thisValue");
+
+ assert.sameValue(log[11].name, "get next done (2)");
+ assert.sameValue(log[11].thisValue.name, "next-result-2", "get next done thisValue");
+
+ assert.sameValue(log[12].name, "after yield*");
+ assert.sameValue(log[12].value, "next-value-2");
+
+ assert.sameValue(v.value, "return-value");
+ assert.sameValue(v.done, true);
+
+ assert.sameValue(log.length, 13, "log.length");
+ }).then($DONE, $DONE);
+}).catch($DONE);
diff --git a/test/language/statements/async-generator/yield-star-sync-return.js b/test/language/statements/async-generator/yield-star-sync-return.js
new file mode 100644
index 0000000000..e28ea802ec
--- /dev/null
+++ b/test/language/statements/async-generator/yield-star-sync-return.js
@@ -0,0 +1,176 @@
+/*---
+ author: Tooru Fujisawa [:arai] <arai_a@mac.com>
+ esid: pending
+ description: execution order for yield* with sync iterator and return()
+ info: >
+ YieldExpression: yield * AssignmentExpression
+
+ ...
+ 6. Repeat
+ ...
+ c. Else,
+ i. Assert: received.[[Type]] is return.
+ ii. Let return be ? GetMethod(iterator, "return").
+ iii. If return is undefined, return Completion(received).
+ iv. Let innerReturnResult be ? Call(return, iterator,
+ « received.[[Value]] »).
+ v. If generatorKind is async, then set innerReturnResult to
+ ? Await(innerReturnResult).
+ ...
+ vii. Let done be ? IteratorComplete(innerReturnResult).
+ viii. If done is true, then
+ 1. Let value be ? IteratorValue(innerReturnResult).
+ 2. Return Completion{[[Type]]: return, [[Value]]: value,
+ [[Target]]: empty}.
+ ix. Let received be GeneratorYield(innerResult).
+
+ %AsyncFromSyncIteratorPrototype%.return ( value )
+
+ 5. Let return be GetMethod(syncIterator, "return").
+ ...
+ ...
+ 8. Let returnResult be Call(return, syncIterator, « value »).
+ ...
+ 11. Let returnValue be IteratorValue(returnResult).
+ ..
+ 13. Let returnDone be IteratorComplete(returnResult).
+ ...
+ 16. Perform ! Call(valueWrapperCapability.[[Resolve]], undefined, « returnValue »).
+ ...
+ 18. Set onFulfilled.[[Done]] to returnDone.
+ 19. Perform ! PerformPromiseThen(valueWrapperCapability.[[Promise]],
+ onFulfilled, undefined, promiseCapability).
+ ...
+
+ flags: [async]
+---*/
+
+var log = [];
+var iter = {
+ [Symbol.iterator]() {
+ var returnCount = 0;
+ return {
+ name: "syncIterator",
+ get next() {
+ log.push({ name: "get next" });
+ return function() {
+ return {
+ value: "next-value-1",
+ done: false
+ };
+ };
+ },
+ get return() {
+ log.push({
+ name: "get return",
+ thisValue: this
+ });
+ return function() {
+ log.push({
+ name: "call return",
+ thisValue: this,
+ args: [...arguments]
+ });
+
+ returnCount++;
+ if (returnCount == 1) {
+ return {
+ name: "return-result-1",
+ get value() {
+ log.push({
+ name: "get return value (1)",
+ thisValue: this
+ });
+ return "return-value-1";
+ },
+ get done() {
+ log.push({
+ name: "get return done (1)",
+ thisValue: this
+ });
+ return false;
+ }
+ };
+ }
+
+ return {
+ name: "return-result-2",
+ get value() {
+ log.push({
+ name: "get return value (2)",
+ thisValue: this
+ });
+ return "return-value-2";
+ },
+ get done() {
+ log.push({
+ name: "get return done (2)",
+ thisValue: this
+ });
+ return true;
+ }
+ };
+ };
+ }
+ };
+ }
+};
+var asyncIterator = (async function*() {
+ log.push({ name: "before yield*" });
+ yield* iter;
+})();
+
+assert.sameValue(log.length, 0, "log.length");
+
+asyncIterator.next().then(v => {
+ assert.sameValue(log[0].name, "before yield*");
+
+ assert.sameValue(log[1].name, "get next");
+
+ assert.sameValue(v.value, "next-value-1");
+ assert.sameValue(v.done, false);
+
+ assert.sameValue(log.length, 2, "log.length");
+
+ asyncIterator.return("return-arg-1").then(v => {
+ assert.sameValue(log[2].name, "get return");
+ assert.sameValue(log[2].thisValue.name, "syncIterator", "get return thisValue");
+
+ assert.sameValue(log[3].name, "call return");
+ assert.sameValue(log[3].thisValue.name, "syncIterator", "return thisValue");
+ assert.sameValue(log[3].args.length, 1, "return args.length");
+ assert.sameValue(log[3].args[0], "return-arg-1", "return args[0]");
+
+ assert.sameValue(log[4].name, "get return value (1)");
+ assert.sameValue(log[4].thisValue.name, "return-result-1", "get return value thisValue");
+
+ assert.sameValue(log[5].name, "get return done (1)");
+ assert.sameValue(log[5].thisValue.name, "return-result-1", "get return done thisValue");
+
+ assert.sameValue(v.value, "return-value-1");
+ assert.sameValue(v.done, false);
+
+ assert.sameValue(log.length, 6, "log.length");
+
+ asyncIterator.return("return-arg-2").then(v => {
+ assert.sameValue(log[6].name, "get return");
+ assert.sameValue(log[6].thisValue.name, "syncIterator", "get return thisValue");
+
+ assert.sameValue(log[7].name, "call return");
+ assert.sameValue(log[7].thisValue.name, "syncIterator", "get return thisValue");
+ assert.sameValue(log[7].args.length, 1, "return args.length");
+ assert.sameValue(log[7].args[0], "return-arg-2", "return args[0]");
+
+ assert.sameValue(log[8].name, "get return value (2)");
+ assert.sameValue(log[8].thisValue.name, "return-result-2", "get return value thisValue");
+
+ assert.sameValue(log[9].name, "get return done (2)");
+ assert.sameValue(log[9].thisValue.name, "return-result-2", "get return done thisValue");
+
+ assert.sameValue(v.value, "return-value-2");
+ assert.sameValue(v.done, true);
+
+ assert.sameValue(log.length, 10, "log.length");
+ }).then($DONE, $DONE);
+ }).catch($DONE);
+}).catch($DONE);
diff --git a/test/language/statements/async-generator/yield-star-sync-throw.js b/test/language/statements/async-generator/yield-star-sync-throw.js
new file mode 100644
index 0000000000..7c0ada620a
--- /dev/null
+++ b/test/language/statements/async-generator/yield-star-sync-throw.js
@@ -0,0 +1,182 @@
+/*---
+ author: Tooru Fujisawa [:arai] <arai_a@mac.com>
+ esid: pending
+ description: execution order for yield* with sync iterator and throw()
+ info: >
+ YieldExpression: yield * AssignmentExpression
+
+ ...
+ 6. Repeat
+ ...
+ b. Else if received.[[Type]] is throw, then
+ i. Let throw be ? GetMethod(iterator, "throw").
+ ii. If throw is not undefined, then
+ 1. Let innerResult be ? Call(throw, iterator, « received.[[Value]] »).
+ 2. If generatorKind is async, then set innerResult to
+ ? Await(innerResult).
+ ...
+ 5. Let done be ? IteratorComplete(innerResult).
+ 6. If done is true, then
+ a. Return ? IteratorValue(innerResult).
+ 7. Let received be GeneratorYield(innerResult).
+ ...
+
+ %AsyncFromSyncIteratorPrototype%.throw ( value )
+
+ ...
+ 5. Let throw be GetMethod(syncIterator, "throw").
+ ...
+ 8. Let throwResult be Call(throw, syncIterator, « value »).
+ ...
+ 11. Let throwValue be IteratorValue(throwResult).
+ ...
+ 13. Let throwDone be IteratorComplete(throwResult).
+ ...
+ 16. Perform ! Call(valueWrapperCapability.[[Resolve]], undefined,
+ « throwValue »).
+ ...
+ 18. Set onFulfilled.[[Done]] to throwDone.
+ 19. Perform ! PerformPromiseThen(valueWrapperCapability.[[Promise]],
+ onFulfilled, undefined, promiseCapability).
+ ...
+
+ flags: [async]
+---*/
+
+var log = [];
+var iter = {
+ [Symbol.iterator]() {
+ var throwCount = 0;
+ return {
+ name: "syncIterator",
+ get next() {
+ log.push({ name: "get next" });
+ return function() {
+ return {
+ value: "next-value-1",
+ done: false
+ };
+ };
+ },
+ get throw() {
+ log.push({
+ name: "get throw",
+ thisValue: this
+ });
+ return function() {
+ log.push({
+ name: "call throw",
+ thisValue: this,
+ args: [...arguments]
+ });
+
+ throwCount++;
+ if (throwCount == 1) {
+ return {
+ name: "throw-result-1",
+ get value() {
+ log.push({
+ name: "get throw value (1)",
+ thisValue: this
+ });
+ return "throw-value-1";
+ },
+ get done() {
+ log.push({
+ name: "get throw done (1)",
+ thisValue: this
+ });
+ return false;
+ }
+ };
+ }
+
+ return {
+ name: "throw-result-2",
+ get value() {
+ log.push({
+ name: "get throw value (2)",
+ thisValue: this
+ });
+ return "throw-value-2";
+ },
+ get done() {
+ log.push({
+ name: "get throw done (2)",
+ thisValue: this
+ });
+ return true;
+ }
+ };
+ };
+ }
+ };
+ }
+};
+var asyncIterator = (async function*() {
+ log.push({ name: "before yield*" });
+ var v = yield* iter;
+ log.push({
+ name: "after yield*",
+ value: v
+ });
+ return "return-value";
+})();
+
+assert.sameValue(log.length, 0, "log.length");
+
+asyncIterator.next().then(v => {
+ assert.sameValue(log[0].name, "before yield*");
+
+ assert.sameValue(log[1].name, "get next");
+
+ assert.sameValue(v.value, "next-value-1");
+ assert.sameValue(v.done, false);
+
+ assert.sameValue(log.length, 2, "log.length");
+
+ asyncIterator.throw("throw-arg-1").then(v => {
+ assert.sameValue(log[2].name, "get throw");
+ assert.sameValue(log[2].thisValue.name, "syncIterator", "get throw thisValue");
+
+ assert.sameValue(log[3].name, "call throw");
+ assert.sameValue(log[3].thisValue.name, "syncIterator", "throw thisValue");
+ assert.sameValue(log[3].args.length, 1, "throw args.length");
+ assert.sameValue(log[3].args[0], "throw-arg-1", "throw args[0]");
+
+ assert.sameValue(log[4].name, "get throw value (1)");
+ assert.sameValue(log[4].thisValue.name, "throw-result-1", "get throw value thisValue");
+
+ assert.sameValue(log[5].name, "get throw done (1)");
+ assert.sameValue(log[5].thisValue.name, "throw-result-1", "get throw done thisValue");
+
+ assert.sameValue(v.value, "throw-value-1");
+ assert.sameValue(v.done, false);
+
+ assert.sameValue(log.length, 6, "log.length");
+
+ asyncIterator.throw("throw-arg-2").then(v => {
+ assert.sameValue(log[6].name, "get throw");
+ assert.sameValue(log[6].thisValue.name, "syncIterator", "get throw thisValue");
+
+ assert.sameValue(log[7].name, "call throw");
+ assert.sameValue(log[7].thisValue.name, "syncIterator", "throw thisValue");
+ assert.sameValue(log[7].args.length, 1, "throw args.length");
+ assert.sameValue(log[7].args[0], "throw-arg-2", "throw args[0]");
+
+ assert.sameValue(log[8].name, "get throw value (2)");
+ assert.sameValue(log[8].thisValue.name, "throw-result-2", "get throw value thisValue");
+
+ assert.sameValue(log[9].name, "get throw done (2)");
+ assert.sameValue(log[9].thisValue.name, "throw-result-2", "get throw done thisValue");
+
+ assert.sameValue(log[10].name, "after yield*");
+ assert.sameValue(log[10].value, "throw-value-2");
+
+ assert.sameValue(v.value, "return-value");
+ assert.sameValue(v.done, true);
+
+ assert.sameValue(log.length, 11, "log.length");
+ }).then($DONE, $DONE);
+ }).catch($DONE);
+}).catch($DONE);
--
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