30 lines
693 B
JavaScript
30 lines
693 B
JavaScript
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// Copyright 2019 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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//
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// Flags: --allow-natives-syntax
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let actual = [];
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async function f() {
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var p = Promise.resolve(0);
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Object.defineProperty(p, "constructor", {
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get() {
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throw new Error();
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}
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});
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actual.push("start");
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for await (var x of [p]);
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actual.push("never reached");
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}
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Promise.resolve(0)
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.then(() => actual.push("tick 1"))
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.then(() => actual.push("tick 2"))
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f().catch(() => actual.push("catch"));
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%PerformMicrotaskCheckpoint();
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assertSame(["start", "tick 1", "tick 2", "catch"].join(), actual.join());
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