a544b4967e
... in Runtime::kCopyDataPropertiesWithExcludedPropertiesOnStack. Bug: v8:11614 Change-Id: Ief6d62fff242d3d38c4e586c7252935d3527ddf1 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3581534 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: 王澳 <wangao.james@bytedance.com> Cr-Commit-Position: refs/heads/main@{#79937}
18 lines
663 B
JavaScript
18 lines
663 B
JavaScript
// Copyright 2022 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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// Deconstructing will goto fast path.
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const fastProps = { key: "abc", ref: 1234, a: 10, b: 20, c: 30, d: 40, e: 50 };
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const { key, ref, ...normalizedFastProps } = fastProps;
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// Deconstructing will goto runtime, call
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// Runtime:: kCopyDataPropertiesWithExcludedPropertiesOnStack.
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// Add a large index to force dictionary elements.
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const slowProps = { [2**30] : 10};
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assertTrue(%HasDictionaryElements(slowProps));
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const { ...normalizedSlowProps } = slowProps;
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