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14 lines
577 B
JavaScript
14 lines
577 B
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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// In ES#sec-array.prototype.concat
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// When concat makes a new integer-indexed exotic object, the resulting properties
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// are non-configurable and cannot have CreateDataPropertyOrThrow called on them,
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// so it throws a TypeError on failure to make a new property.
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__v_0 = new Uint8Array(100);
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array = new Array(10);
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array.__proto__ = __v_0;
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assertThrows(() => Array.prototype.concat.call(array), TypeError);
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