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6a31d05340
PR-URL: https://github.com/nodejs/node/pull/21079 Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Yang Guo <yangguo@chromium.org>
27 lines
775 B
JavaScript
27 lines
775 B
JavaScript
// 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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const splice = Array.prototype.splice;
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const unshift = Array.prototype.unshift;
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{
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let a = {length: 2**53 - 1};
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assertThrows(() => unshift.call(a, 42), TypeError);
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assertEquals(unshift.call(a), 2**53 - 1);
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}
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{
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let a = {length: 2**53 - 1};
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assertThrows(() => splice.call(a, 0, 0, 42), TypeError);
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assertEquals(splice.call(a, 0, 1, 42).length, 1);
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assertEquals(a[0], 42);
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}
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{
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let a = {length: 2**53 - 1, [Symbol.isConcatSpreadable]: true};
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assertThrows(() => [42].concat(a), TypeError);
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assertThrows(() => [, ].concat(a), TypeError);
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assertThrows(() => [].concat(42, a), TypeError);
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}
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