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// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --harmony-weak-refs --expose-gc --noincremental-marking
let r = Realm.create();
let cleanup = Realm.eval(r, "var stored_global; let cleanup = new Proxy(function() { stored_global = globalThis;}, {}); cleanup");
let realm_global_this = Realm.eval(r, "globalThis");
let fg = new FinalizationRegistry(cleanup);
// Create an object and register it in the FinalizationRegistry. The object needs
// to be inside a closure so that we can reliably kill them!
let weak_cell;
(function() {
let object = {};
fg.register(object, "holdings");
// object goes out of scope.
})();
gc();
// Assert that the cleanup function was called in its Realm.
let timeout_func = function() {
let stored_global = Realm.eval(r, "stored_global;");
assertNotEquals(stored_global, globalThis);
assertEquals(stored_global, realm_global_this);
}
setTimeout(timeout_func, 0);
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