30 lines
695 B
JavaScript
30 lines
695 B
JavaScript
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// Copyright 2018 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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(function Throws() {
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function TestError() {}
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let callCount = 0;
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const a = {
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0: 1,
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1: 2,
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get length() {
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callCount++;
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throw new TestError();
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}
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};
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assertThrows(() => Array.prototype.join.call(a), TestError);
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assertSame(1, callCount);
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// Verifies cycle detection still works properly after thrown error.
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Object.defineProperty(a, 'length', {
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get() {
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callCount++;
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return 2;
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}
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});
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assertSame('1,2', Array.prototype.join.call(a));
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assertSame(2, callCount);
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})();
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