7535b91f7c
... to different attributes or different property kind. Bug: chromium:1161847, v8:9233 Change-Id: I5a6e1e012c6afcf09ed9da6bbf9f33c1007c3d99 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2727272 Reviewed-by: Michael Stanton <mvstanton@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Igor Sheludko <ishell@chromium.org> Cr-Commit-Position: refs/heads/master@{#73220}
20 lines
564 B
JavaScript
20 lines
564 B
JavaScript
// Copyright 2021 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 foo(first_run) {
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let o = { x: 0 };
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if (first_run) assertTrue(%HasOwnConstDataProperty(o, 'x'));
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Object.defineProperty(o, 'x', { writable: false });
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delete o.x;
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o.x = 23;
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if (first_run) assertFalse(%HasOwnConstDataProperty(o, 'x'));
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}
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%PrepareFunctionForOptimization(foo);
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foo(true);
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foo(false);
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%OptimizeFunctionOnNextCall(foo);
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foo(false);
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