d59db06bf5
Bug: v8:8179 Change-Id: I7f699073807d1874d0c10a4f1641de6bfb0efe6f Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2741582 Commit-Queue: Shu-yu Guo <syg@chromium.org> Reviewed-by: Shu-yu Guo <syg@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Cr-Commit-Position: refs/heads/master@{#73871}
27 lines
639 B
JavaScript
27 lines
639 B
JavaScript
// Copyright 2018 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: --expose-gc --noincremental-marking
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let wr;
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(function() {
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let o = {};
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wr = new WeakRef(o);
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// Don't deref here, we want to test that the creation is enough to keep the
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// WeakRef alive until the end of the turn.
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})();
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gc();
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// Since the WeakRef was created during this turn, it is not cleared by GC.
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(function() {
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assertNotEquals(undefined, wr.deref());
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})();
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// Next task.
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setTimeout(() => {
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gc();
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assertEquals(undefined, wr.deref());
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}, 0);
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