mirror of https://github.com/tc39/test262.git
54 lines
1.3 KiB
JavaScript
54 lines
1.3 KiB
JavaScript
// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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description: >
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Error thrown when invoking the instance's `then` method (closing iterator)
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esid: sec-performpromiseall
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info: |
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11. Let result be PerformPromiseAll(iteratorRecord, C, promiseCapability).
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12. If result is an abrupt completion,
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a. If iteratorRecord.[[done]] is false, let result be
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IteratorClose(iterator, result).
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b. IfAbruptRejectPromise(result, promiseCapability).
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[...]
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25.4.4.1.1 Runtime Semantics: PerformPromiseAll
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[...]
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6. Repeat
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[...]
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r. Let result be Invoke(nextPromise, "then", «resolveElement,
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resultCapability.[[Reject]]»).
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s. ReturnIfAbrupt(result).
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features: [Symbol.iterator]
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---*/
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var promise = new Promise(function() {});
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var returnCount = 0;
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var iter = {};
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iter[Symbol.iterator] = function() {
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return {
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next: function() {
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return {
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done: false,
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value: promise
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};
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},
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return: function() {
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returnCount += 1;
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return {};
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}
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};
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};
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Object.defineProperty(promise, "then", {
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value: function() {
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throw new Test262Error();
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}
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});
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Promise.all(iter);
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assert.sameValue(returnCount, 1);
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