v8/test/mjsunit/harmony/weakrefs/cleanupsome.js
Sathya Gunasekaran 2f2657a6af [WeakRefs] Update cleanupSome to be spec compliant
Make sure to use the callback passed to cleanupSome

Bug: v8:8179
Change-Id: Ia5d90b56edf80e05bdaf0dc520b555c29042b64c
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1655306
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Commit-Queue: Sathya Gunasekaran <gsathya@chromium.org>
Cr-Commit-Position: refs/heads/master@{#62122}
2019-06-12 16:10:35 +00:00

37 lines
924 B
JavaScript

// 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 --allow-natives-syntax
let cleanup_count = 0;
let cleanup_holdings = [];
let cleanup = function(iter) {
%AbortJS("shouldn't be called");
}
let cleanup2 = function(iter) {
for (holdings of iter) {
cleanup_holdings.push(holdings);
}
++cleanup_count;
}
let fg = new FinalizationGroup(cleanup);
(function() {
let o = {};
fg.register(o, "holdings");
// cleanupSome won't do anything since there are no reclaimed targets.
fg.cleanupSome(cleanup2);
assertEquals(0, cleanup_count);
})();
// GC will detect o as dead.
gc();
fg.cleanupSome(cleanup2);
assertEquals(1, cleanup_count);
assertEquals(1, cleanup_holdings.length);
assertEquals("holdings", cleanup_holdings[0]);