| /* |
| * Copyright (C) 2014 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 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 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 FloatSizeHash_h |
| #define FloatSizeHash_h |
| |
| #include "FloatSize.h" |
| #include <wtf/HashSet.h> |
| |
| namespace WTF { |
| |
| template<> struct FloatHash<WebCore::FloatSize> { |
| static unsigned hash(const WebCore::FloatSize& key) { return pairIntHash(DefaultHash<float>::Hash::hash(key.width()), DefaultHash<float>::Hash::hash(key.height())); } |
| static bool equal(const WebCore::FloatSize& a, const WebCore::FloatSize& b) { return a == b; } |
| static const bool safeToCompareToEmptyOrDeleted = true; |
| }; |
| |
| template<> struct DefaultHash<WebCore::FloatSize> { |
| typedef FloatHash<WebCore::FloatSize> Hash; |
| }; |
| |
| template<> struct HashTraits<WebCore::FloatSize> : GenericHashTraits<WebCore::FloatSize> { |
| static const bool emptyValueIsZero = true; |
| static void constructDeletedValue(WebCore::FloatSize& slot) { new (NotNull, &slot) WebCore::FloatSize(-1, -1); } |
| static bool isDeletedValue(const WebCore::FloatSize& value) { return value.width() == -1 && value.height() == -1; } |
| }; |
| |
| } // namespace WTF |
| |
| #endif |