8cbb60f30c
When reconfigure data field (e.g. change representation), it was allowed to transition from dictionary elements kind to sealed elements kind. With this change, this transition is forbidden. Bug: chromium:963346 Change-Id: I6c9a5f6f269bc5ee4cd6176ff5e8d803f08dba1f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1613840 Commit-Queue: Z Nguyen-Huu <duongn@microsoft.com> Reviewed-by: Jaroslav Sevcik <jarin@chromium.org> Cr-Commit-Position: refs/heads/master@{#61670}
16 lines
372 B
JavaScript
16 lines
372 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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// Flags: --allow-natives-syntax
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var o = ['3'];
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function foo(i) { o.x = i; }
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foo("string");
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Object.preventExtensions(o);
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Object.seal(o);
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print('foo');
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foo(0);
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%HeapObjectVerify(o);
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assertEquals(o.x, 0);
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