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Side by Side Diff: Source/core/dom/QualifiedName.h

Issue 1304043002: Make classes and structures in core/dom fast-allocated. (Closed) Base URL: https://chromium.googlesource.com/chromium/blink.git@master
Patch Set: Created 5 years, 4 months ago
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1 /* 1 /*
2 * Copyright (C) 2005, 2006, 2009 Apple Inc. All rights reserved. 2 * Copyright (C) 2005, 2006, 2009 Apple Inc. All rights reserved.
3 * 3 *
4 * This library is free software; you can redistribute it and/or 4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public 5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either 6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version. 7 * version 2 of the License, or (at your option) any later version.
8 * 8 *
9 * This library is distributed in the hope that it will be useful, 9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details. 12 * Library General Public License for more details.
13 * 13 *
14 * You should have received a copy of the GNU Library General Public License 14 * You should have received a copy of the GNU Library General Public License
15 * along with this library; see the file COPYING.LIB. If not, write to 15 * along with this library; see the file COPYING.LIB. If not, write to
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA. 17 * Boston, MA 02110-1301, USA.
18 * 18 *
19 */ 19 */
20 20
21 #ifndef QualifiedName_h 21 #ifndef QualifiedName_h
22 #define QualifiedName_h 22 #define QualifiedName_h
23 23
24 #include "core/CoreExport.h" 24 #include "core/CoreExport.h"
25 #include "wtf/Allocator.h"
25 #include "wtf/HashTableDeletedValueType.h" 26 #include "wtf/HashTableDeletedValueType.h"
26 #include "wtf/HashTraits.h" 27 #include "wtf/HashTraits.h"
27 #include "wtf/RefCounted.h" 28 #include "wtf/RefCounted.h"
28 #include "wtf/text/AtomicString.h" 29 #include "wtf/text/AtomicString.h"
29 30
30 namespace blink { 31 namespace blink {
31 32
32 struct QualifiedNameComponents { 33 struct QualifiedNameComponents {
34 DISALLOW_ALLOCATION();
33 StringImpl* m_prefix; 35 StringImpl* m_prefix;
34 StringImpl* m_localName; 36 StringImpl* m_localName;
35 StringImpl* m_namespace; 37 StringImpl* m_namespace;
36 }; 38 };
37 39
38 // This struct is used to pass data between QualifiedName and the QNameTranslato r. 40 // This struct is used to pass data between QualifiedName and the QNameTranslato r.
39 // For hashing and equality only the QualifiedNameComponents fields are used. 41 // For hashing and equality only the QualifiedNameComponents fields are used.
40 struct QualifiedNameData { 42 struct QualifiedNameData {
43 DISALLOW_ALLOCATION();
41 QualifiedNameComponents m_components; 44 QualifiedNameComponents m_components;
42 bool m_isStatic; 45 bool m_isStatic;
43 }; 46 };
44 47
45 class CORE_EXPORT QualifiedName { 48 class CORE_EXPORT QualifiedName {
46 WTF_MAKE_FAST_ALLOCATED(QualifiedName); 49 WTF_MAKE_FAST_ALLOCATED(QualifiedName);
47 public: 50 public:
48 class QualifiedNameImpl : public RefCounted<QualifiedNameImpl> { 51 class QualifiedNameImpl : public RefCounted<QualifiedNameImpl> {
49 public: 52 public:
50 static PassRefPtr<QualifiedNameImpl> create(const AtomicString& prefix, const AtomicString& localName, const AtomicString& namespaceURI, bool isStatic) 53 static PassRefPtr<QualifiedNameImpl> create(const AtomicString& prefix, const AtomicString& localName, const AtomicString& namespaceURI, bool isStatic)
(...skipping 95 matching lines...) Expand 10 before | Expand all | Expand 10 after
146 inline bool operator!=(const AtomicString& a, const QualifiedName& q) { return a != q.localName(); } 149 inline bool operator!=(const AtomicString& a, const QualifiedName& q) { return a != q.localName(); }
147 inline bool operator==(const QualifiedName& q, const AtomicString& a) { return a == q.localName(); } 150 inline bool operator==(const QualifiedName& q, const AtomicString& a) { return a == q.localName(); }
148 inline bool operator!=(const QualifiedName& q, const AtomicString& a) { return a != q.localName(); } 151 inline bool operator!=(const QualifiedName& q, const AtomicString& a) { return a != q.localName(); }
149 152
150 inline unsigned hashComponents(const QualifiedNameComponents& buf) 153 inline unsigned hashComponents(const QualifiedNameComponents& buf)
151 { 154 {
152 return StringHasher::hashMemory<sizeof(QualifiedNameComponents)>(&buf); 155 return StringHasher::hashMemory<sizeof(QualifiedNameComponents)>(&buf);
153 } 156 }
154 157
155 struct QualifiedNameHash { 158 struct QualifiedNameHash {
159 STATIC_ONLY(QualifiedNameHash);
156 static unsigned hash(const QualifiedName& name) { return hash(name.impl()); } 160 static unsigned hash(const QualifiedName& name) { return hash(name.impl()); }
157 161
158 static unsigned hash(const QualifiedName::QualifiedNameImpl* name) 162 static unsigned hash(const QualifiedName::QualifiedNameImpl* name)
159 { 163 {
160 if (!name->m_existingHash) 164 if (!name->m_existingHash)
161 name->m_existingHash = name->computeHash(); 165 name->m_existingHash = name->computeHash();
162 return name->m_existingHash; 166 return name->m_existingHash;
163 } 167 }
164 168
165 static bool equal(const QualifiedName& a, const QualifiedName& b) { return a == b; } 169 static bool equal(const QualifiedName& a, const QualifiedName& b) { return a == b; }
(...skipping 10 matching lines...) Expand all
176 typedef blink::QualifiedNameHash Hash; 180 typedef blink::QualifiedNameHash Hash;
177 }; 181 };
178 182
179 template<> struct HashTraits<blink::QualifiedName> : SimpleClassHashTraits<blink ::QualifiedName> { 183 template<> struct HashTraits<blink::QualifiedName> : SimpleClassHashTraits<blink ::QualifiedName> {
180 static const bool emptyValueIsZero = false; 184 static const bool emptyValueIsZero = false;
181 static blink::QualifiedName emptyValue() { return blink::QualifiedName::null (); } 185 static blink::QualifiedName emptyValue() { return blink::QualifiedName::null (); }
182 }; 186 };
183 } 187 }
184 188
185 #endif 189 #endif
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