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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 --noincremental-marking
let cleanup_call_count = 0;
let cleanup = function(iter) {
++cleanup_call_count;
}
let wf = new WeakFactory(cleanup);
// Create an object and a WeakCell pointing to it. The object needs to be inside
// a closure so that we can reliably kill them!
let weak_cell;
(function() {
let object = {};
weak_cell = wf.makeCell(object, "my holdings");
// Clear the WeakCell before the GC has a chance to discover it.
let return_value = weak_cell.clear();
assertEquals(undefined, return_value);
// Assert holdings got cleared too.
assertEquals(undefined, weak_cell.holdings);
// object goes out of scope.
})();
// This GC will discover dirty WeakCells.
gc();
assertEquals(0, cleanup_call_count);
// Assert that the cleanup function won't be called, since the WeakCell was cleared.
let timeout_func = function() {
assertEquals(0, cleanup_call_count);
}
setTimeout(timeout_func, 0);
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