/*

 * 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.

 *

 * 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 CachedScriptSourceProvider_h

#define CachedScriptSourceProvider_h

#include "CachedResourceClient.h"

#include "CachedResourceHandle.h"

#include "CachedScript.h"

#include "JSDOMBinding.h" // for stringToUString

#include "ScriptSourceProvider.h"

#include <parser/SourceCode.h>

namespace WebCore {

    class CachedScriptSourceProvider : public ScriptSourceProvider, public CachedResourceClient {

    public:

        static PassRefPtr<CachedScriptSourceProvider> create(CachedScript* cachedScript) { return adoptRef(new CachedScriptSourceProvider(cachedScript)); }

        virtual ~CachedScriptSourceProvider()

        {

            m_cachedScript->removeClient(this);

        }

        JSC::UString getRange(int start, int end) const { return JSC::UString(m_cachedScript->script().characters() + start, end - start); }

        const UChar* data() const { return m_cachedScript->script().characters(); }

        int length() const { return m_cachedScript->script().length(); }

        const String& source() const { return m_cachedScript->script(); }

    private:

        CachedScriptSourceProvider(CachedScript* cachedScript)

            : ScriptSourceProvider(stringToUString(cachedScript->url()))

            , m_cachedScript(cachedScript)

        {

            m_cachedScript->addClient(this);

        }

        CachedResourceHandle<CachedScript> m_cachedScript;

    };

    inline JSC::SourceCode makeSource(CachedScript* cachedScript)

    {

        return JSC::SourceCode(CachedScriptSourceProvider::create(cachedScript));

    }

} // namespace WebCore

#endif // CachedScriptSourceProvider_h