| // 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-with-cleanup-some --expose-gc --noincremental-marking |
| |
| var FR = new FinalizationRegistry (function (holdings) { globalThis.FRRan = true; }); |
| { |
| let obj = {}; |
| // obj is its own unregister token and becomes unreachable after this |
| // block. If the unregister token is held strongly this test will not |
| // terminate. |
| FR.register(obj, 42, obj); |
| } |
| function tryAgain() { |
| gc(); |
| if (globalThis.FRRan || FR.cleanupSome()) { |
| return; |
| } |
| setTimeout(tryAgain, 0); |
| } |
| tryAgain(); |
