1d29d81c69
PR-URL: https://github.com/nodejs/node/pull/52293 Reviewed-By: Moshe Atlow <moshe@atlow.co.il> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Richard Lau <rlau@redhat.com>
56 lines
1.3 KiB
JavaScript
56 lines
1.3 KiB
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: --no-lazy-feedback-allocation
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class A {
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constructor(n, is_enum) {
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if (n) {
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Object.defineProperty(this, "p"+n,
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{value: 0, enumerable: false, configurable: true, writable: true});
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}
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Object.defineProperty(this, "boom",
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{value: 42, enumerable: is_enum, configurable: true, writable: true});
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Object.defineProperty(this, "0",
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{value: 55, enumerable: is_enum, configurable: true, writable: true});
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}
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}
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class B extends A {
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boom = 0;
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[0] = 0;
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foo = 1;
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constructor(...args) {
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super(...args);
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}
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}
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const expected = ["0", "boom", "foo"];
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(function TestMonomorphic() {
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for (let i = 1; i <= 12; i++) {
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const b = new B(0, false);
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assertEquals(expected, Object.keys(b));
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}
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})();
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(function TestPolymorphic() {
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for (let i = 1; i <= 12; i++) {
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const b = new B(0, true);
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assertEquals(expected, Object.keys(b));
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}
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})();
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(function TestMegamorphic() {
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for (let i = 1; i <= 12; i++) {
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const b = new B(i, false);
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assertEquals(expected, Object.keys(b));
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}
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for (let i = 1; i <= 12; i++) {
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const b = new B(i, true);
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assertEquals(expected, Object.keys(b));
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}
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})();
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