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/*
* Copyright (C) 2008, 2013 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 SourceCode_h
#define SourceCode_h
#include "SourceProvider.h"
#include <wtf/RefPtr.h>
namespace JSC {
class SourceCode {
public:
SourceCode()
: m_provider(0)
, m_startChar(0)
, m_endChar(0)
, m_firstLine(0)
, m_startColumn(0)
{
}
SourceCode(WTF::HashTableDeletedValueType)
: m_provider(WTF::HashTableDeletedValue)
{
}
SourceCode(PassRefPtr<SourceProvider> provider)
: m_provider(provider)
, m_startChar(0)
, m_endChar(m_provider->source().length())
, m_firstLine(1)
, m_startColumn(1)
{
}
SourceCode(PassRefPtr<SourceProvider> provider, int firstLine, int startColumn)
: m_provider(provider)
, m_startChar(0)
, m_endChar(m_provider->source().length())
, m_firstLine(std::max(firstLine, 1))
, m_startColumn(std::max(startColumn, 1))
{
}
SourceCode(PassRefPtr<SourceProvider> provider, int start, int end, int firstLine, int startColumn)
: m_provider(provider)
, m_startChar(start)
, m_endChar(end)
, m_firstLine(std::max(firstLine, 1))
, m_startColumn(std::max(startColumn, 1))
{
}
bool isHashTableDeletedValue() const { return m_provider.isHashTableDeletedValue(); }
String toString() const
{
if (!m_provider)
return String();
return m_provider->getRange(m_startChar, m_endChar);
}
CString toUTF8() const;
intptr_t providerID() const
{
if (!m_provider)
return SourceProvider::nullID;
return m_provider->asID();
}
bool isNull() const { return !m_provider; }
SourceProvider* provider() const { return m_provider.get(); }
int firstLine() const { return m_firstLine; }
int startColumn() const { return m_startColumn; }
int startOffset() const { return m_startChar; }
int endOffset() const { return m_endChar; }
int length() const { return m_endChar - m_startChar; }
SourceCode subExpression(unsigned openBrace, unsigned closeBrace, int firstLine, int startColumn);
private:
RefPtr<SourceProvider> m_provider;
int m_startChar;
int m_endChar;
int m_firstLine;
int m_startColumn;
};
inline SourceCode makeSource(const String& source, const String& url = String(), const TextPosition& startPosition = TextPosition::minimumPosition())
{
return SourceCode(StringSourceProvider::create(source, url, startPosition), startPosition.m_line.oneBasedInt(), startPosition.m_column.oneBasedInt());
}
inline SourceCode SourceCode::subExpression(unsigned openBrace, unsigned closeBrace, int firstLine, int startColumn)
{
ASSERT(provider()->source()[openBrace] == '{');
ASSERT(provider()->source()[closeBrace] == '}');
startColumn += 1; // Convert to base 1.
return SourceCode(provider(), openBrace, closeBrace + 1, firstLine, startColumn);
}
} // namespace JSC
#endif // SourceCode_h
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