f226350fcb
PR-URL: https://github.com/nodejs/node/pull/47251 Reviewed-By: Yagiz Nizipli <yagiz@nizipli.com> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Richard Lau <rlau@redhat.com>
43 lines
1.3 KiB
JavaScript
43 lines
1.3 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: --expose-gc --noincremental-marking
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(async function () {
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let r = Realm.create();
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let cleanup = Realm.eval(r, "var stored_global; let cleanup = new Proxy(function() { 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 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, "holdings");
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// object goes out of scope.
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})();
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// We need to invoke GC asynchronously and wait for it to finish, so that
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// it doesn't need to scan the stack. Otherwise, the objects may not be
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// reclaimed because of conservative stack scanning and the test may not
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// work as intended.
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await gc({ type: 'major', execution: 'async' });
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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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})();
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