1 /*
2 * Copyright (C) 2005, 2006, 2009 Apple Inc. All rights reserved.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Library General Public
6 * License as published by the Free Software Foundation; either
7 * version 2 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Library General Public License for more details.
13 *
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
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17 * Boston, MA 02110-1301, USA.
18 */
19
20 #include "config.h"
21
22 #ifdef SKIP_STATIC_CONSTRUCTORS_ON_GCC
23 #define WEBCORE_QUALIFIEDNAME_HIDE_GLOBALS 1
24 #else
25 #define QNAME_DEFAULT_CONSTRUCTOR
26 #endif
27
28 #include "QualifiedName.h"
29 #include "StaticConstructors.h"
30 #include <wtf/Assertions.h>
31 #include <wtf/HashSet.h>
32
33 namespace WebCore {
34
35 typedef HashSet<QualifiedName::QualifiedNameImpl*, QualifiedNameHash> QNameSet;
36
37 struct QNameComponentsTranslator {
hashWebCore::QNameComponentsTranslator38 static unsigned hash(const QualifiedNameComponents& components)
39 {
40 return hashComponents(components);
41 }
equalWebCore::QNameComponentsTranslator42 static bool equal(QualifiedName::QualifiedNameImpl* name, const QualifiedNameComponents& c)
43 {
44 return c.m_prefix == name->m_prefix.impl() && c.m_localName == name->m_localName.impl() && c.m_namespace == name->m_namespace.impl();
45 }
translateWebCore::QNameComponentsTranslator46 static void translate(QualifiedName::QualifiedNameImpl*& location, const QualifiedNameComponents& components, unsigned)
47 {
48 location = QualifiedName::QualifiedNameImpl::create(components.m_prefix, components.m_localName, components.m_namespace).releaseRef();
49 }
50 };
51
52 static QNameSet* gNameCache;
53
init(const AtomicString & p,const AtomicString & l,const AtomicString & n)54 void QualifiedName::init(const AtomicString& p, const AtomicString& l, const AtomicString& n)
55 {
56 if (!gNameCache)
57 gNameCache = new QNameSet;
58 QualifiedNameComponents components = { p.impl(), l.impl(), n.isEmpty() ? nullAtom.impl() : n.impl() };
59 pair<QNameSet::iterator, bool> addResult = gNameCache->add<QualifiedNameComponents, QNameComponentsTranslator>(components);
60 m_impl = *addResult.first;
61 if (!addResult.second)
62 m_impl->ref();
63 }
64
QualifiedName(const AtomicString & p,const AtomicString & l,const AtomicString & n)65 QualifiedName::QualifiedName(const AtomicString& p, const AtomicString& l, const AtomicString& n)
66 {
67 init(p, l, n);
68 }
69
QualifiedName(const AtomicString & p,const char * l,const AtomicString & n)70 QualifiedName::QualifiedName(const AtomicString& p, const char* l, const AtomicString& n)
71 {
72 init(p, AtomicString(l), n);
73 }
74
deref()75 void QualifiedName::deref()
76 {
77 #ifdef QNAME_DEFAULT_CONSTRUCTOR
78 if (!m_impl)
79 return;
80 #endif
81
82 if (m_impl->hasOneRef())
83 gNameCache->remove(m_impl);
84 m_impl->deref();
85 }
86
toString() const87 String QualifiedName::toString() const
88 {
89 String local = localName();
90 if (hasPrefix())
91 return prefix() + ":" + local;
92 return local;
93 }
94
95 // Global init routines
DEFINE_GLOBAL(QualifiedName,anyName,nullAtom,starAtom,starAtom)96 DEFINE_GLOBAL(QualifiedName, anyName, nullAtom, starAtom, starAtom)
97
98 void QualifiedName::init()
99 {
100 static bool initialized;
101 if (!initialized) {
102 // Use placement new to initialize the globals.
103
104 AtomicString::init();
105 new ((void*)&anyName) QualifiedName(nullAtom, starAtom, starAtom);
106 initialized = true;
107 }
108 }
109
localNameUpper() const110 const AtomicString& QualifiedName::localNameUpper() const
111 {
112 if (!m_impl->m_localNameUpper)
113 m_impl->m_localNameUpper = m_impl->m_localName.upper();
114 return m_impl->m_localNameUpper;
115 }
116
117 }
118