| OLD | NEW |
| 1 /* | 1 /* |
| 2 * Copyright (C) 2008 Apple Inc. All rights reserved. | 2 * Copyright (C) 2008 Apple Inc. All rights reserved. |
| 3 * | 3 * |
| 4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
| 5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
| 6 * are met: | 6 * are met: |
| 7 * | 7 * |
| 8 * 1. Redistributions of source code must retain the above copyright | 8 * 1. Redistributions of source code must retain the above copyright |
| 9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | 10 * 2. Redistributions in binary form must reproduce the above copyright |
| (...skipping 17 matching lines...) Expand all Loading... |
| 28 | 28 |
| 29 #ifndef AtomicStringHash_h | 29 #ifndef AtomicStringHash_h |
| 30 #define AtomicStringHash_h | 30 #define AtomicStringHash_h |
| 31 | 31 |
| 32 #include "wtf/HashTraits.h" | 32 #include "wtf/HashTraits.h" |
| 33 #include "wtf/text/AtomicString.h" | 33 #include "wtf/text/AtomicString.h" |
| 34 | 34 |
| 35 namespace WTF { | 35 namespace WTF { |
| 36 | 36 |
| 37 struct AtomicStringHash { | 37 struct AtomicStringHash { |
| 38 static unsigned hash(const AtomicString& key) | 38 static unsigned hash(const AtomicString& key) { |
| 39 { | 39 return key.impl()->existingHash(); |
| 40 return key.impl()->existingHash(); | 40 } |
| 41 } | |
| 42 | 41 |
| 43 static bool equal(const AtomicString& a, const AtomicString& b) | 42 static bool equal(const AtomicString& a, const AtomicString& b) { |
| 44 { | 43 return a == b; |
| 45 return a == b; | 44 } |
| 46 } | |
| 47 | 45 |
| 48 static const bool safeToCompareToEmptyOrDeleted = false; | 46 static const bool safeToCompareToEmptyOrDeleted = false; |
| 49 }; | 47 }; |
| 50 | 48 |
| 51 // AtomicStringHash is the default hash for AtomicString | 49 // AtomicStringHash is the default hash for AtomicString |
| 52 template<> struct HashTraits<AtomicString> : SimpleClassHashTraits<AtomicString>
{ | 50 template <> |
| 53 // Unlike other types, we can return a const reference for AtomicString's | 51 struct HashTraits<AtomicString> : SimpleClassHashTraits<AtomicString> { |
| 54 // empty value (nullAtom). | 52 // Unlike other types, we can return a const reference for AtomicString's |
| 55 typedef const AtomicString& PeekOutType; | 53 // empty value (nullAtom). |
| 54 typedef const AtomicString& PeekOutType; |
| 56 | 55 |
| 57 static const AtomicString& emptyValue() { return nullAtom; } | 56 static const AtomicString& emptyValue() { return nullAtom; } |
| 58 static PeekOutType peek(const AtomicString& value) { return value; } | 57 static PeekOutType peek(const AtomicString& value) { return value; } |
| 59 | 58 |
| 60 static const bool hasIsEmptyValueFunction = true; | 59 static const bool hasIsEmptyValueFunction = true; |
| 61 static bool isEmptyValue(const AtomicString& value) { return value.isNull();
} | 60 static bool isEmptyValue(const AtomicString& value) { return value.isNull(); } |
| 62 }; | 61 }; |
| 63 | |
| 64 } | 62 } |
| 65 | 63 |
| 66 using WTF::AtomicStringHash; | 64 using WTF::AtomicStringHash; |
| 67 | 65 |
| 68 #endif | 66 #endif |
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