ff89c6bc6f
The deprecated legacy FinalizationGroup APIs are left unchanged for compat. Bug: v8:8179 Change-Id: I9bdcaa92360db318c96fc8524c04163ece25118e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2071236 Commit-Queue: Shu-yu Guo <syg@chromium.org> Reviewed-by: Adam Klein <adamk@chromium.org> Cr-Commit-Position: refs/heads/master@{#66437}
35 lines
1012 B
JavaScript
35 lines
1012 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: --harmony-weak-refs --expose-gc --noincremental-marking
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let r = Realm.create();
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let cleanup = Realm.eval(r, "var stored_global; function cleanup() { stored_global = globalThis; } cleanup");
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let realm_global_this = Realm.eval(r, "globalThis");
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let fg = new FinalizationRegistry(cleanup);
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// Create an object and a register it in the FinalizationRegistry. The object needs
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// to be inside a closure so that we can reliably kill them!
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let weak_cell;
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(function() {
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let object = {};
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fg.register(object, {});
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// object goes out of scope.
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})();
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gc();
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// Assert that the cleanup function was called in its Realm.
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let timeout_func = function() {
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let stored_global = Realm.eval(r, "stored_global;");
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assertNotEquals(stored_global, globalThis);
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assertEquals(stored_global, realm_global_this);
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}
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setTimeout(timeout_func, 0);
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