17 lines
419 B
JavaScript
17 lines
419 B
JavaScript
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// Copyright 2017 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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class A {}
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class B {}
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A.__proto__ = new Proxy(A.__proto__, {
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get: function (target, property, receiver) {
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if (property === Symbol.hasInstance) throw new B;
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}
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});
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assertThrows(() => (new A) instanceof A, B);
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