| // This file was procedurally generated from the following sources: |
| // - src/async-generators/yield-star-sync-next.case |
| // - src/async-generators/default/async-class-decl-static-private-method.template |
| /*--- |
| description: execution order for yield* with sync iterator and next() (Static async generator method as a ClassDeclaration element) |
| esid: prod-AsyncGeneratorPrivateMethod |
| features: [Symbol.iterator, async-iteration, Symbol.asyncIterator, class-static-methods-private] |
| flags: [generated, async] |
| info: | |
| ClassElement : |
| static PrivateMethodDefinition |
| |
| MethodDefinition : |
| AsyncGeneratorMethod |
| |
| Async Generator Function Definitions |
| |
| AsyncGeneratorMethod : |
| async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody } |
| |
| |
| 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]]). |
| |
| ---*/ |
| var log = []; |
| var obj = { |
| 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 callCount = 0; |
| |
| class C { |
| static async *#gen() { |
| callCount += 1; |
| log.push({ name: "before yield*" }); |
| var v = yield* obj; |
| log.push({ |
| name: "after yield*", |
| value: v |
| }); |
| return "return-value"; |
| |
| } |
| static get gen() { return this.#gen; } |
| } |
| |
| // Test the private fields do not appear as properties before set to value |
| assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")'); |
| assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")'); |
| |
| var iter = C.gen(); |
| |
| assert.sameValue(log.length, 0, "log.length"); |
| |
| iter.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, obj, "get [Symbol.iterator] thisValue"); |
| |
| assert.sameValue(log[3].name, "call [Symbol.iterator]"); |
| assert.sameValue(log[3].thisValue, obj, "[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 done (1)"); |
| assert.sameValue(log[6].thisValue.name, "next-result-1", "get next done thisValue"); |
| |
| assert.sameValue(log[7].name, "get next value (1)"); |
| assert.sameValue(log[7].thisValue.name, "next-result-1", "get next value thisValue"); |
| |
| assert.sameValue(v.value, "next-value-1"); |
| assert.sameValue(v.done, false); |
| |
| assert.sameValue(log.length, 8, "log.length"); |
| |
| iter.next("next-arg-2").then(v => { |
| assert.sameValue(log[8].name, "call next"); |
| assert.sameValue(log[8].thisValue.name, "syncIterator", "next thisValue"); |
| assert.sameValue(log[8].args.length, 1, "next args.length"); |
| assert.sameValue(log[8].args[0], "next-arg-2", "next args[0]"); |
| |
| assert.sameValue(log[9].name, "get next done (2)"); |
| assert.sameValue(log[9].thisValue.name, "next-result-2", "get next done thisValue"); |
| |
| 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, "after yield*"); |
| assert.sameValue(log[11].value, "next-value-2"); |
| |
| assert.sameValue(v.value, "return-value"); |
| assert.sameValue(v.done, true); |
| |
| assert.sameValue(log.length, 12, "log.length"); |
| }).then($DONE, $DONE); |
| }).catch($DONE); |
| |
| assert.sameValue(callCount, 1); |
| |
| // Test the private fields do not appear as properties after set to value |
| assert.sameValue(Object.hasOwnProperty.call(C.prototype, "#gen"), false, 'Object.hasOwnProperty.call(C.prototype, "#gen")'); |
| assert.sameValue(Object.hasOwnProperty.call(C, "#gen"), false, 'Object.hasOwnProperty.call(C, "#gen")'); |