| // This file was procedurally generated from the following sources: |
| // - src/async-generators/yield-star-getiter-sync-returns-null-throw.case |
| // - src/async-generators/default/async-class-decl-private-method.template |
| /*--- |
| description: Non object returned by [Symbol.iterator]() - null (Async Generator method as a ClassDeclaration element) |
| esid: prod-AsyncGeneratorPrivateMethod |
| features: [Symbol.iterator, async-iteration, class-methods-private] |
| flags: [generated, async] |
| info: | |
| ClassElement : |
| PrivateMethodDefinition |
| |
| MethodDefinition : |
| AsyncGeneratorMethod |
| |
| Async Generator Function Definitions |
| |
| AsyncGeneratorMethod : |
| async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody } |
| |
| |
| YieldExpression: yield * AssignmentExpression |
| |
| 1. Let exprRef be the result of evaluating AssignmentExpression. |
| 2. Let value be ? GetValue(exprRef). |
| 3. Let generatorKind be ! GetGeneratorKind(). |
| 4. Let iterator be ? GetIterator(value, generatorKind). |
| ... |
| |
| GetIterator ( obj [ , hint ] ) |
| |
| ... |
| 3. If hint is async, |
| a. Set method to ? GetMethod(obj, @@asyncIterator). |
| i. Let syncMethod be ? GetMethod(obj, @@iterator). |
| ii. Let syncIterator be ? Call(syncMethod, obj). |
| iii. Return ? CreateAsyncFromSyncIterator(syncIterator). |
| ... |
| |
| CreateAsyncFromSyncIterator(syncIterator) |
| |
| 1. If Type(syncIterator) is not Object, throw a TypeError exception. |
| ... |
| |
| ---*/ |
| var obj = { |
| [Symbol.iterator]() { |
| return null; |
| } |
| }; |
| |
| |
| |
| var callCount = 0; |
| |
| class C { |
| async *#gen() { |
| callCount += 1; |
| yield* obj; |
| throw new Test262Error('abrupt completion closes iter'); |
| |
| } |
| get gen() { return this.#gen; } |
| } |
| |
| const c = new C(); |
| |
| // 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")'); |
| assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")'); |
| |
| var iter = c.gen(); |
| |
| iter.next().then(() => { |
| throw new Test262Error('Promise incorrectly fulfilled.'); |
| }, v => { |
| assert.sameValue(v.constructor, TypeError, "TypeError"); |
| |
| iter.next().then(({ done, value }) => { |
| assert.sameValue(done, true, 'the iterator is completed'); |
| assert.sameValue(value, undefined, 'value is undefined'); |
| }).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")'); |
| assert.sameValue(Object.hasOwnProperty.call(c, "#gen"), false, 'Object.hasOwnProperty.call(c, "#gen")'); |