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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: --expose-gc --noincremental-marking
let wr;
(function() {
let o = {};
wr = new WeakRef(o);
// Don't deref here, we want to test that the creation is enough to keep the
// WeakRef alive until the end of the turn.
})();
gc();
// Since the WeakRef was created during this turn, it is not cleared by GC.
(function() {
assertNotEquals(undefined, wr.deref());
})();
// Next task.
setTimeout(() => {
gc();
assertEquals(undefined, wr.deref());
}, 0);
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