27 lines
686 B
JavaScript
27 lines
686 B
JavaScript
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// Copyright 2023 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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function x() {
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let obj = { foo: "bar" };
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obj.toJSON = 42;
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obj.__proto__ = new Proxy([], {});
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assertTrue(%HasFastProperties(obj));
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return obj;
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}
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assertEquals("[object Object]", toString.call(x()));
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function y() {
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let obj = { foo: "bar" };
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Object.defineProperty(obj, "foo", {
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get: function () {}
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});
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obj.toJSON = 42;
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obj.__proto__ = new Proxy([], {});
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assertFalse(%HasFastProperties(obj));
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return obj;
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}
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assertEquals("[object Object]", toString.call(y()));
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