/* | |
* Copyright (C) 2008 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. | |
* 3. Neither the name of Apple Inc. ("Apple") nor the names of its | |
* contributors may be used to endorse or promote products derived | |
* from this software without specific prior written permission. | |
* | |
* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "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 OR ITS 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 StringBuffer_h | |
#define StringBuffer_h | |
#include <wtf/Assertions.h> | |
#include <wtf/Noncopyable.h> | |
#include <wtf/unicode/Unicode.h> | |
namespace WebCore { | |
class StringBuffer : public Noncopyable { | |
public: | |
explicit StringBuffer(unsigned length) | |
: m_length(length) | |
, m_data(static_cast<UChar*>(fastMalloc(length * sizeof(UChar)))) | |
{ | |
} | |
~StringBuffer() | |
{ | |
fastFree(m_data); | |
} | |
void shrink(unsigned newLength) | |
{ | |
ASSERT(newLength <= m_length); | |
m_length = newLength; | |
} | |
void resize(unsigned newLength) | |
{ | |
if (newLength > m_length) | |
m_data = static_cast<UChar*>(fastRealloc(m_data, newLength * sizeof(UChar))); | |
m_length = newLength; | |
} | |
unsigned length() const { return m_length; } | |
UChar* characters() { return m_data; } | |
UChar& operator[](unsigned i) { ASSERT(i < m_length); return m_data[i]; } | |
UChar* release() { UChar* data = m_data; m_data = 0; return data; } | |
private: | |
unsigned m_length; | |
UChar* m_data; | |
}; | |
} | |
#endif |