ea526196f4
This replaces WeakFactory with FinalizationGroup. New API is here: https://weakrefs.netlify.com/ BUG=v8:8179 Change-Id: I8c1c4a70deb42581d17117423dd29d93bdd35cb0 Reviewed-on: https://chromium-review.googlesource.com/c/1435938 Reviewed-by: Maya Lekova <mslekova@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Reviewed-by: Sathya Gunasekaran <gsathya@chromium.org> Commit-Queue: Marja Hölttä <marja@chromium.org> Cr-Commit-Position: refs/heads/master@{#59204}
46 lines
1.1 KiB
JavaScript
46 lines
1.1 KiB
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: --harmony-weak-refs --expose-gc --noincremental-marking
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let cleanup_called = false;
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let cleanup = function(iter) {
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assertFalse(cleanup_called);
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let holdings_list = [];
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for (holdings of iter) {
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holdings_list.push(holdings);
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}
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assertEquals(holdings_list.length, 2);
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if (holdings_list[0] == 1) {
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assertEquals(holdings_list[1], 2);
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} else {
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assertEquals(holdings_list[0], 2);
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assertEquals(holdings_list[1], 1);
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}
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cleanup_called = true;
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}
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let fg = new FinalizationGroup(cleanup);
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let o1 = {};
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let o2 = {};
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fg.register(o1, 1);
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fg.register(o2, 2);
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gc();
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assertFalse(cleanup_called);
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// Drop the last references to o1 and o2.
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o1 = null;
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o2 = null;
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// GC will reclaim the target objects; the cleanup function will be called the
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// next time we enter the event loop.
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gc();
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assertFalse(cleanup_called);
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let timeout_func = function() {
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assertTrue(cleanup_called);
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}
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setTimeout(timeout_func, 0);
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