/*

 * Copyright (c) 2008, Google 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:

 * 

 *     * Redistributions of source code must retain the above copyright

 * notice, this list of conditions and the following disclaimer.

 *     * 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.

 *     * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT

 * OWNER 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 ScriptString_h

#define ScriptString_h

#include "JSDOMBinding.h"

#include "PlatformString.h"

#include <runtime/UString.h>

#include <runtime/StringBuilder.h>

namespace WebCore {

class String;

class ScriptString {

public:

    ScriptString() {}

    ScriptString(const char* s) : m_str(s) {}

    ScriptString(const String& s) : m_str(stringToUString(s)) {}

    ScriptString(const JSC::UString& s) : m_str(s) {}

    operator JSC::UString() const { return m_str; }

    operator String() const { return ustringToString(m_str); }

    const JSC::UString& ustring() const { return m_str; }

    bool isNull() const { return m_str.isNull(); }

    size_t size() const { return m_str.size(); }

    ScriptString& operator=(const char* s)

    {

        m_str = s;

        return *this;

    }

    ScriptString& operator+=(const String& s)

    {

        JSC::StringBuilder buffer;

        buffer.append(m_str);

        buffer.append(stringToUString(s));

        m_str = buffer.build();

        return *this;

    }

    bool operator==(const ScriptString& s) const

    {

        return m_str == s.m_str;

    }

    bool operator!=(const ScriptString& s) const

    {

        // Avoid exporting an extra symbol by re-using "==" operator.

        return !(m_str == s.m_str);

    }

private:

    JSC::UString m_str;

};

} // namespace WebCore

#endif // ScriptString_h