diff options
Diffstat (limited to 'deps/v8/test/mjsunit/harmony/weakrefs/clear-inside-cleanup2.js')
-rw-r--r-- | deps/v8/test/mjsunit/harmony/weakrefs/clear-inside-cleanup2.js | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/harmony/weakrefs/clear-inside-cleanup2.js b/deps/v8/test/mjsunit/harmony/weakrefs/clear-inside-cleanup2.js new file mode 100644 index 0000000000..0aab366f97 --- /dev/null +++ b/deps/v8/test/mjsunit/harmony/weakrefs/clear-inside-cleanup2.js @@ -0,0 +1,40 @@ +// 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); + wc.clear(); + ++cleanup_weak_cell_count; + } + ++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); |