#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)
{
}
SourceCode(PassRefPtr<SourceProvider> provider, int firstLine = 1)
: m_provider(provider)
, m_startChar(0)
, m_endChar(m_provider->length())
, m_firstLine(std::max(firstLine, 1))
{
}
SourceCode(PassRefPtr<SourceProvider> provider, int start, int end, int firstLine)
: m_provider(provider)
, m_startChar(start)
, m_endChar(end)
, m_firstLine(std::max(firstLine, 1))
{
}
UString toString() const
{
if (!m_provider)
return UString();
return m_provider->getRange(m_startChar, m_endChar);
}
bool isNull() const { return !m_provider; }
SourceProvider* provider() const { return m_provider.get(); }
int firstLine() const { return m_firstLine; }
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);
private:
RefPtr<SourceProvider> m_provider;
int m_startChar;
int m_endChar;
int m_firstLine;
};
inline SourceCode makeSource(const UString& source, const UString& url = UString(), const TextPosition& startPosition = TextPosition::minimumPosition())
{
return SourceCode(UStringSourceProvider::create(source, url, startPosition), startPosition.m_line.oneBasedInt());
}
inline SourceCode SourceCode::subExpression(unsigned openBrace, unsigned closeBrace, int firstLine)
{
ASSERT((*provider()->data())[openBrace] == '{');
ASSERT((*provider()->data())[closeBrace] == '}');
return SourceCode(provider(), openBrace, closeBrace + 1, firstLine);
}
}
#endif // SourceCode_h