66178c8f53
It shipped with Chrome 55 stable. R=littledan@chromium.org Review-Url: https://codereview.chromium.org/2621173002 Cr-Commit-Position: refs/heads/master@{#42203}
59 lines
1.4 KiB
JavaScript
59 lines
1.4 KiB
JavaScript
// Copyright 2016 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Flags: --allow-natives-syntax
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function assertEqualsAsync(expected, run, msg) {
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var actual;
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var hadValue = false;
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var hadError = false;
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var promise = run();
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if (typeof promise !== "object" || typeof promise.then !== "function") {
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throw new MjsUnitAssertionError(
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"Expected " + run.toString() +
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" to return a Promise, but it returned " + PrettyPrint(promise));
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}
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promise.then(function(value) { hadValue = true; actual = value; },
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function(error) { hadError = true; actual = error; });
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assertFalse(hadValue || hadError);
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%RunMicrotasks();
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if (hadError) throw actual;
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assertTrue(
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hadValue, "Expected '" + run.toString() + "' to produce a value");
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assertEquals(expected, actual, msg);
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};
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class BaseClass {
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constructor(x) {
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this.name_ = x;
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}
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get name() { return this.name_; }
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};
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class DeferredSuperCall extends BaseClass {
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constructor(x) {
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return async() => super(x);
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}
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};
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assertEqualsAsync(
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"LexicalSuperCall",
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() => new DeferredSuperCall("LexicalSuperCall")().then(x => x.name));
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class DeferredSuperProperty extends BaseClass {
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deferredName() { return async() => super.name; }
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};
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assertEqualsAsync(
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"LexicalSuperProperty",
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() => new DeferredSuperProperty("LexicalSuperProperty").deferredName()());
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