2 * Copyright (C) 2011 Apple Inc. All rights reserved.
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5 * modification, are permitted provided that the following conditions
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29 #include "IntPointHash.h"
31 #include "IntSizeHash.h"
32 #include <wtf/HashMap.h>
33 #include <wtf/HashSet.h>
37 template<> struct IntHash<WebCore::IntRect> {
38 static unsigned hash(const WebCore::IntRect& key)
40 return intHash(static_cast<uint64_t>(DefaultHash<WebCore::IntPoint>::Hash::hash(key.location())) << 32 | DefaultHash<WebCore::IntSize>::Hash::hash(key.size()));
42 static bool equal(const WebCore::IntRect& a, const WebCore::IntRect& b)
44 return DefaultHash<WebCore::IntPoint>::Hash::equal(a.location(), b.location()) && DefaultHash<WebCore::IntSize>::Hash::equal(a.size(), b.size());
46 static const bool safeToCompareToEmptyOrDeleted = true;
48 template<> struct DefaultHash<WebCore::IntRect> { typedef IntHash<WebCore::IntRect> Hash; };
50 template<> struct HashTraits<WebCore::IntRect> : GenericHashTraits<WebCore::IntRect> {
51 static const bool emptyValueIsZero = true;
52 static const bool needsDestruction = false;
53 static void constructDeletedValue(WebCore::IntRect& slot) { new (NotNull, &slot) WebCore::IntRect(-1, -1, -1, -1); }
54 static bool isDeletedValue(const WebCore::IntRect& value) { return value.x() == -1 && value.y() == -1 && value.width() == -1 && value.height() == -1; }