v8/test/message/weakref-finalizationregistry-error.js
Shu-yu Guo f902b9dd8d [weakrefs] Update FinalizationRegistry to take a per-item callback
Bug: v8:8179
Change-Id: I0cd43db6558db616690de2dd012bf7518c49345d
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2138563
Commit-Queue: Shu-yu Guo <syg@chromium.org>
Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#67069}
2020-04-08 17:54:24 +00:00

26 lines
632 B
JavaScript

// Copyright 2020 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
// Flags: --no-stress-opt
// Since cleanup tasks are top-level tasks, errors thrown from them don't stop
// future cleanup tasks from running.
function callback(holdings) {
throw new Error('callback');
};
const fg1 = new FinalizationRegistry(callback);
const fg2 = new FinalizationRegistry(callback);
(function() {
let x = {};
fg1.register(x, {});
fg2.register(x, {});
x = null;
})();
gc();