/* | |
* Copyright (C) 2004, 2005, 2006, 2008 Apple Inc. All rights reserved. | |
* | |
* This library is free software; you can redistribute it and/or | |
* modify it under the terms of the GNU Library General Public | |
* License as published by the Free Software Foundation; either | |
* version 2 of the License, or (at your option) any later version. | |
* | |
* This library is distributed in the hope that it will be useful, | |
* but WITHOUT ANY WARRANTY; without even the implied warranty of | |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
* Library General Public License for more details. | |
* | |
* You should have received a copy of the GNU Library General Public License | |
* along with this library; see the file COPYING.LIB. If not, write to | |
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
* Boston, MA 02110-1301, USA. | |
* | |
*/ | |
#ifndef AtomicString_h | |
#define AtomicString_h | |
#include "AtomicStringImpl.h" | |
#include "PlatformString.h" | |
// Define 'NO_IMPLICIT_ATOMICSTRING' before including this header, | |
// to disallow (expensive) implicit String-->AtomicString conversions. | |
#ifdef NO_IMPLICIT_ATOMICSTRING | |
#define ATOMICSTRING_CONVERSION explicit | |
#else | |
#define ATOMICSTRING_CONVERSION | |
#endif | |
namespace WebCore { | |
struct AtomicStringHash; | |
class AtomicString : public FastAllocBase { | |
public: | |
static void init(); | |
AtomicString() { } | |
AtomicString(const char* s) : m_string(add(s)) { } | |
AtomicString(const UChar* s, int length) : m_string(add(s, length)) { } | |
AtomicString(const UChar* s) : m_string(add(s)) { } | |
#if USE(JSC) | |
AtomicString(const JSC::UString& s) : m_string(add(s)) { } | |
AtomicString(const JSC::Identifier& s) : m_string(add(s)) { } | |
#endif | |
ATOMICSTRING_CONVERSION AtomicString(StringImpl* imp) : m_string(add(imp)) { } | |
AtomicString(AtomicStringImpl* imp) : m_string(imp) { } | |
ATOMICSTRING_CONVERSION AtomicString(const String& s) : m_string(add(s.impl())) { } | |
// Hash table deleted values, which are only constructed and never copied or destroyed. | |
AtomicString(WTF::HashTableDeletedValueType) : m_string(WTF::HashTableDeletedValue) { } | |
bool isHashTableDeletedValue() const { return m_string.isHashTableDeletedValue(); } | |
#if USE(JSC) | |
static AtomicStringImpl* find(const JSC::Identifier&); | |
#endif | |
operator const String&() const { return m_string; } | |
const String& string() const { return m_string; }; | |
#if USE(JSC) | |
operator JSC::UString() const; | |
#endif | |
AtomicStringImpl* impl() const { return static_cast<AtomicStringImpl *>(m_string.impl()); } | |
const UChar* characters() const { return m_string.characters(); } | |
unsigned length() const { return m_string.length(); } | |
UChar operator[](unsigned int i) const { return m_string[i]; } | |
bool contains(UChar c) const { return m_string.contains(c); } | |
bool contains(const char* s, bool caseSensitive = true) const | |
{ return m_string.contains(s, caseSensitive); } | |
bool contains(const String& s, bool caseSensitive = true) const | |
{ return m_string.contains(s, caseSensitive); } | |
int find(UChar c, int start = 0) const { return m_string.find(c, start); } | |
int find(const char* s, int start = 0, bool caseSentitive = true) const | |
{ return m_string.find(s, start, caseSentitive); } | |
int find(const String& s, int start = 0, bool caseSentitive = true) const | |
{ return m_string.find(s, start, caseSentitive); } | |
bool startsWith(const String& s, bool caseSensitive = true) const | |
{ return m_string.startsWith(s, caseSensitive); } | |
bool endsWith(const String& s, bool caseSensitive = true) const | |
{ return m_string.endsWith(s, caseSensitive); } | |
AtomicString lower() const; | |
AtomicString upper() const { return AtomicString(impl()->upper()); } | |
int toInt(bool* ok = 0) const { return m_string.toInt(ok); } | |
double toDouble(bool* ok = 0) const { return m_string.toDouble(ok); } | |
float toFloat(bool* ok = 0) const { return m_string.toFloat(ok); } | |
bool percentage(int& p) const { return m_string.percentage(p); } | |
bool isNull() const { return m_string.isNull(); } | |
bool isEmpty() const { return m_string.isEmpty(); } | |
static void remove(StringImpl*); | |
#if PLATFORM(CF) | |
AtomicString(CFStringRef s) : m_string(add(String(s).impl())) { } | |
CFStringRef createCFString() const { return m_string.createCFString(); } | |
#endif | |
#ifdef __OBJC__ | |
AtomicString(NSString* s) : m_string(add(String(s).impl())) { } | |
operator NSString*() const { return m_string; } | |
#endif | |
#if PLATFORM(QT) | |
AtomicString(const QString& s) : m_string(add(String(s).impl())) { } | |
operator QString() const { return m_string; } | |
#endif | |
private: | |
String m_string; | |
static PassRefPtr<StringImpl> add(const char*); | |
static PassRefPtr<StringImpl> add(const UChar*, int length); | |
static PassRefPtr<StringImpl> add(const UChar*); | |
static PassRefPtr<StringImpl> add(StringImpl*); | |
#if USE(JSC) | |
static PassRefPtr<StringImpl> add(const JSC::UString&); | |
static PassRefPtr<StringImpl> add(const JSC::Identifier&); | |
#endif | |
}; | |
inline bool operator==(const AtomicString& a, const AtomicString& b) { return a.impl() == b.impl(); } | |
bool operator==(const AtomicString& a, const char* b); | |
inline bool operator==(const AtomicString& a, const String& b) { return equal(a.impl(), b.impl()); } | |
inline bool operator==(const char* a, const AtomicString& b) { return b == a; } | |
inline bool operator==(const String& a, const AtomicString& b) { return equal(a.impl(), b.impl()); } | |
inline bool operator!=(const AtomicString& a, const AtomicString& b) { return a.impl() != b.impl(); } | |
inline bool operator!=(const AtomicString& a, const char *b) { return !(a == b); } | |
inline bool operator!=(const AtomicString& a, const String& b) { return !equal(a.impl(), b.impl()); } | |
inline bool operator!=(const char* a, const AtomicString& b) { return !(b == a); } | |
inline bool operator!=(const String& a, const AtomicString& b) { return !equal(a.impl(), b.impl()); } | |
inline bool equalIgnoringCase(const AtomicString& a, const AtomicString& b) { return equalIgnoringCase(a.impl(), b.impl()); } | |
inline bool equalIgnoringCase(const AtomicString& a, const char* b) { return equalIgnoringCase(a.impl(), b); } | |
inline bool equalIgnoringCase(const AtomicString& a, const String& b) { return equalIgnoringCase(a.impl(), b.impl()); } | |
inline bool equalIgnoringCase(const char* a, const AtomicString& b) { return equalIgnoringCase(a, b.impl()); } | |
inline bool equalIgnoringCase(const String& a, const AtomicString& b) { return equalIgnoringCase(a.impl(), b.impl()); } | |
// Define external global variables for the commonly used atomic strings. | |
// These are only usable from the main thread. | |
#ifndef ATOMICSTRING_HIDE_GLOBALS | |
extern const AtomicString nullAtom; | |
extern const AtomicString emptyAtom; | |
extern const AtomicString textAtom; | |
extern const AtomicString commentAtom; | |
extern const AtomicString starAtom; | |
extern const AtomicString xmlAtom; | |
extern const AtomicString xmlnsAtom; | |
#endif | |
} // namespace WebCore | |
namespace WTF { | |
// AtomicStringHash is the default hash for AtomicString | |
template<typename T> struct DefaultHash; | |
template<> struct DefaultHash<WebCore::AtomicString> { | |
typedef WebCore::AtomicStringHash Hash; | |
}; | |
} // namespace WTF | |
#endif // AtomicString_h |