| // Copyright 2019 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 cleanedUp = false; |
| let r = Realm.create(); |
| let FG = Realm.eval(r, "FinalizationRegistry"); |
| Realm.detachGlobal(r); |
| |
| let fg_not_run = new FG(() => { |
| assertUnreachable(); |
| }); |
| (() => { |
| fg_not_run.register({}); |
| })(); |
| |
| gc(); |
| |
| // Disposing the realm cancels the already scheduled fg_not_run's finalizer. |
| Realm.dispose(r); |
| |
| let fg = new FG(()=> { |
| cleanedUp = true; |
| }); |
| |
| // FGs that are alive after disposal can still schedule tasks. |
| (() => { |
| let object = {}; |
| fg.register(object, {}); |
| |
| // object becomes unreachable. |
| })(); |
| |
| gc(); |
| |
| setTimeout(function() { assertTrue(cleanedUp); }, 0); |