JavaScriptCore/kjs/SourceRange.h

/*
 * 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 Computer, 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 SourceRange_h
#define SourceRange_h

#include "SourceProvider.h"
#include <wtf/RefPtr.h>

namespace KJS {

    class SourceRange {
    public:
        SourceRange(PassRefPtr<SourceProvider> provider, int start, int end)
            : m_sourceProvider(provider)
            , m_startChar(start)
            , m_endChar(end)
        {
        }

        SourceRange()
        {
        }

        UString toString() const
        {
            if (!m_sourceProvider)
                return UString();
            return m_sourceProvider->getRange(m_startChar, m_endChar);
        }
        
        SourceProvider* sourceProvider() const { return m_sourceProvider.get(); }
        int startOffset() const { return m_startChar; }
    private:
        RefPtr<SourceProvider> m_sourceProvider;
        int m_startChar;
        int m_endChar;
    };

} // namespace KJS

#endif // SourceRange_h