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author | Lorry Tar Creator <lorry-tar-importer@lorry> | 2016-04-10 09:28:39 +0000 |
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committer | Lorry Tar Creator <lorry-tar-importer@lorry> | 2016-04-10 09:28:39 +0000 |
commit | 32761a6cee1d0dee366b885b7b9c777e67885688 (patch) | |
tree | d6bec92bebfb216f4126356e55518842c2f476a1 /Source/JavaScriptCore/heap/CellState.h | |
parent | a4e969f4965059196ca948db781e52f7cfebf19e (diff) | |
download | WebKitGtk-tarball-32761a6cee1d0dee366b885b7b9c777e67885688.tar.gz |
webkitgtk-2.4.11webkitgtk-2.4.11
Diffstat (limited to 'Source/JavaScriptCore/heap/CellState.h')
-rw-r--r-- | Source/JavaScriptCore/heap/CellState.h | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/Source/JavaScriptCore/heap/CellState.h b/Source/JavaScriptCore/heap/CellState.h deleted file mode 100644 index edc716cd0..000000000 --- a/Source/JavaScriptCore/heap/CellState.h +++ /dev/null @@ -1,60 +0,0 @@ -/* - * Copyright (C) 2015 Apple Inc. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, - * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF - * THE POSSIBILITY OF SUCH DAMAGE. - */ - -#ifndef CellState_h -#define CellState_h - -namespace JSC { - -enum class CellState : uint8_t { - // The object is black as far as this GC is concerned. When not in GC, this just means that it's an - // old gen object. Note that we deliberately arrange OldBlack to be zero, so that the store barrier on - // a target object "from" is just: - // - // if (!from->cellState()) - // slowPath(from); - // - // There is a bunch of code in the LLInt and JITs that rely on this being the case. You'd have to - // change a lot of code if you ever wanted the store barrier to be anything but a non-zero check on - // cellState. - OldBlack = 0, - - // The object is in eden. During GC, this means that the object has not been marked yet. - NewWhite = 1, - - // The object is grey - i.e. it will be scanned - but it either belongs to old gen (if this is eden - // GC) or it is grey a second time in this current GC (because a concurrent store barrier requested - // re-greying). - OldGrey = 2, - - // The object is grey - i.e. it will be scanned - and this is the first time in this GC that we are - // going to scan it. If this is an eden GC, this also means that the object is in eden. - NewGrey = 3 -}; - -} // namespace JSC - -#endif // CellState_h - |