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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
let cleanup_call_count = 0;
let cleanup_weak_cell_count = 0;
let cleanup = function(iter) {
for (wc of iter) {
assertSame(wc, weak_cell);
++cleanup_weak_cell_count;
}
// Clear an already iterated over WeakCell.
weak_cell.clear();
++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);
// object goes out of scope.
})();
// This GC will discover dirty WeakCells and schedule cleanup.
gc();
assertEquals(0, cleanup_call_count);
// Assert that the cleanup function was called and iterated the WeakCell.
let timeout_func = function() {
assertEquals(1, cleanup_call_count);
assertEquals(1, cleanup_weak_cell_count);
}
setTimeout(timeout_func, 0);
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