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Diffstat (limited to 'deps/v8/test/mjsunit/harmony/weakrefs/cleanupsome-cleared-weakcell.js')
-rw-r--r-- | deps/v8/test/mjsunit/harmony/weakrefs/cleanupsome-cleared-weakcell.js | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/harmony/weakrefs/cleanupsome-cleared-weakcell.js b/deps/v8/test/mjsunit/harmony/weakrefs/cleanupsome-cleared-weakcell.js new file mode 100644 index 0000000000..631f43c012 --- /dev/null +++ b/deps/v8/test/mjsunit/harmony/weakrefs/cleanupsome-cleared-weakcell.js @@ -0,0 +1,35 @@ +// 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_count = 0; +let cleanup_cells = []; +let cleanup = function(iter) { + for (wc of iter) { + cleanup_cells.push(wc); + } + ++cleanup_count; +} + +let wf = new WeakFactory(cleanup); +let weak_cell; +(function() { + let o = {}; + weak_cell = wf.makeCell(o); + + // cleanupSome won't do anything since there are no dirty WeakCells. + wf.cleanupSome(); + assertEquals(0, cleanup_count); +})(); + +// GC will detect the WeakCell as dirty. +gc(); + +// Clear the WeakCell just before we would've called cleanupSome. +weak_cell.clear(); + +wf.cleanupSome(); + +assertEquals(0, cleanup_count); |