| /* |
| * Copyright (C) 2006, 2008 Apple Inc. All rights reserved. |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Library General Public |
| * License as published by the Free Software Foundation; either |
| * version 2 of the License, or (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Library General Public License for more details. |
| * |
| * You should have received a copy of the GNU Library General Public License |
| * along with this library; see the file COPYING.LIB. If not, write to |
| * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| * Boston, MA 02110-1301, USA. |
| * |
| */ |
| #ifndef IntSizeHash_h |
| #define IntSizeHash_h |
| |
| #include "IntSize.h" |
| #include <wtf/HashTraits.h> |
| |
| namespace WTF { |
| |
| template<> struct IntHash<WebCore::IntSize> { |
| static unsigned hash(const WebCore::IntSize& key) { return pairIntHash(key.width(), key.height()); } |
| static bool equal(const WebCore::IntSize& a, const WebCore::IntSize& b) { return a == b; } |
| static const bool safeToCompareToEmptyOrDeleted = true; |
| }; |
| template<> struct DefaultHash<WebCore::IntSize> { typedef IntHash<WebCore::IntSize> Hash; }; |
| |
| template<> struct HashTraits<WebCore::IntSize> : GenericHashTraits<WebCore::IntSize> { |
| static const bool emptyValueIsZero = true; |
| static const bool needsDestruction = false; |
| static void constructDeletedValue(WebCore::IntSize& slot) { new (NotNull, &slot) WebCore::IntSize(-1, -1); } |
| static bool isDeletedValue(const WebCore::IntSize& value) { return value.width() == -1 && value.height() == -1; } |
| }; |
| } // namespace WTF |
| |
| #endif |