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9d7cd9b864
PR-URL: https://github.com/nodejs/node/pull/54077 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Richard Lau <rlau@redhat.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
24 lines
775 B
JavaScript
24 lines
775 B
JavaScript
// Copyright 2024 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() {
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let obj = {};
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// Add a property
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Object.defineProperty(obj, "__proto__", { enumerable: true, writable: true });
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// Adds side-step from {__proto__} -> {}
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Object.assign({}, obj);
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// Generalizes {__proto__}
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Object.defineProperty(obj, "__proto__", { value: 0 });
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})();
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// TODO(olivf): Ensure object assign fastcase protects the object prototype.
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// (function() {
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// var a = {};
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// a.x = 42;
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// Object.assign({}, a);
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// Object.defineProperty(Object.prototype, "x", {set(v) {}});
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// assertTrue(Object.assign({}, a).x === undefined);
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// })();
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