1 /* 2 * Copyright (C) 2013 Google Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * 8 * * Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * * Redistributions in binary form must reproduce the above 11 * copyright notice, this list of conditions and the following disclaimer 12 * in the documentation and/or other materials provided with the 13 * distribution. 14 * * Neither the name of Google Inc. nor the names of its 15 * contributors may be used to endorse or promote products derived from 16 * this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef CustomElementDescriptorHash_h 32 #define CustomElementDescriptorHash_h 33 34 #include "core/dom/custom/CustomElementDescriptor.h" 35 #include "wtf/HashFunctions.h" 36 #include "wtf/HashTraits.h" 37 #include "wtf/text/AtomicStringHash.h" 38 39 namespace WebCore { 40 41 struct CustomElementDescriptorHash { 42 static unsigned hash(const CustomElementDescriptor& descriptor) 43 { 44 return WTF::pairIntHash(AtomicStringHash::hash(descriptor.type()), WTF::pairIntHash(AtomicStringHash::hash(descriptor.namespaceURI()), AtomicStringHash::hash(descriptor.localName()))); 45 } 46 47 static bool equal(const CustomElementDescriptor& a, const CustomElementDescriptor& b) 48 { 49 return a == b; 50 } 51 52 static const bool safeToCompareToEmptyOrDeleted = true; 53 }; 54 55 } // namespace WebCore 56 57 namespace WTF { 58 59 template<> 60 struct HashTraits<WebCore::CustomElementDescriptor> : SimpleClassHashTraits<WebCore::CustomElementDescriptor> { 61 static const bool emptyValueIsZero = HashTraits<AtomicString>::emptyValueIsZero; 62 }; 63 64 } // namespace WTF 65 66 #endif // CustomElementDescriptorHash 67
