08a5b95d24
Objects in arrays take the shape of the object right before as feedback to speed up object creation. If a subsequent object with the same shape has a member that also has the same shape, that member can cause the feedback map to be deprecated. To avoid confusion, we now update (dedeprecate) the feedback map before use. Thanks a bunch Seth Brenith for figuring out the issue! Bug: chromium:1029077 Change-Id: I047b1acfd4906616a2302f253ab9cd29272bdc79 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1970211 Commit-Queue: Toon Verwaest <verwaest@chromium.org> Commit-Queue: Leszek Swirski <leszeks@chromium.org> Auto-Submit: Toon Verwaest <verwaest@chromium.org> Reviewed-by: Leszek Swirski <leszeks@chromium.org> Cr-Commit-Position: refs/heads/master@{#65474}
6 lines
279 B
JavaScript
6 lines
279 B
JavaScript
// Copyright 2019 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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JSON.parse('[{"a": 2.1, "b": 1, "c": "hello"}, {"a": null, "b": 2, "c": {"a": 2.1, "b": 1.1, "c": "hello"}}]')
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