f902b9dd8d
Bug: v8:8179 Change-Id: I0cd43db6558db616690de2dd012bf7518c49345d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2138563 Commit-Queue: Shu-yu Guo <syg@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ulan Degenbaev <ulan@chromium.org> Cr-Commit-Position: refs/heads/master@{#67069}
68 lines
1.8 KiB
JavaScript
68 lines
1.8 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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// Flags: --no-stress-flush-bytecode
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let cleanup0_call_count = 0;
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let cleanup0_holdings_count = 0;
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let cleanup1_call_count = 0;
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let cleanup1_holdings_count = 0;
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let cleanup0 = function(holdings) {
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++cleanup0_holdings_count;
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++cleanup0_call_count;
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}
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let cleanup1 = function(holdings) {
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++cleanup1_holdings_count;
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++cleanup1_call_count;
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}
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let fg0 = new FinalizationRegistry(cleanup0);
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let fg1 = new FinalizationRegistry(cleanup1);
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// Register 1 weak reference for each FinalizationRegistry and kill the objects they point to.
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(function() {
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// The objects need to be inside a closure so that we can reliably kill them.
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let objects = [];
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objects[0] = {};
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objects[1] = {};
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fg0.register(objects[0], "holdings0-0");
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fg1.register(objects[1], "holdings1-0");
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// Drop the references to the objects.
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objects = [];
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})();
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// Will schedule both fg0 and fg1 for cleanup.
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gc();
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// Before the cleanup task has a chance to run, do the same thing again, so both
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// FinalizationRegistries are (again) scheduled for cleanup. This has to be a IIFE function
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// (so that we can reliably kill the objects) so we cannot use the same function
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// as before.
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(function() {
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let objects = [];
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objects[0] = {};
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objects[1] = {};
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fg0.register(objects[0], "holdings0-1");
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fg1.register(objects[1], "holdings1-1");
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objects = [];
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})();
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gc();
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let timeout_func = function() {
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assertEquals(2, cleanup0_call_count);
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assertEquals(2, cleanup0_holdings_count);
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assertEquals(2, cleanup1_call_count);
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assertEquals(2, cleanup1_holdings_count);
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}
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// Give the cleanup task a chance to run.
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setTimeout(timeout_func, 0);
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