/* | |
* Copyright (C) 2008, 2009 Apple Inc. All Rights Reserved. | |
* | |
* Redistribution and use in source and binary forms, with or without | |
* modification, are permitted provided that the following conditions | |
* are met: | |
* 1. Redistributions of source code must retain the above copyright | |
* notice, this list of conditions and the following disclaimer. | |
* 2. Redistributions in binary form must reproduce the above copyright | |
* notice, this list of conditions and the following disclaimer in the | |
* documentation and/or other materials provided with the distribution. | |
* | |
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | |
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | |
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
*/ | |
#ifndef SmallStrings_h | |
#define SmallStrings_h | |
#include "UString.h" | |
#include <wtf/OwnPtr.h> | |
namespace JSC { | |
class JSGlobalData; | |
class JSString; | |
class MarkStack; | |
class SmallStringsStorage; | |
class SmallStrings : public Noncopyable { | |
public: | |
SmallStrings(); | |
~SmallStrings(); | |
JSString* emptyString(JSGlobalData* globalData) | |
{ | |
if (!m_emptyString) | |
createEmptyString(globalData); | |
return m_emptyString; | |
} | |
JSString* singleCharacterString(JSGlobalData* globalData, unsigned char character) | |
{ | |
if (!m_singleCharacterStrings[character]) | |
createSingleCharacterString(globalData, character); | |
return m_singleCharacterStrings[character]; | |
} | |
UString::Rep* singleCharacterStringRep(unsigned char character); | |
void markChildren(MarkStack&); | |
void clear(); | |
unsigned count() const; | |
private: | |
void createEmptyString(JSGlobalData*); | |
void createSingleCharacterString(JSGlobalData*, unsigned char); | |
JSString* m_emptyString; | |
JSString* m_singleCharacterStrings[0x100]; | |
OwnPtr<SmallStringsStorage> m_storage; | |
}; | |
} // namespace JSC | |
#endif // SmallStrings_h |