/*

 * Copyright (C) 2004 Apple Computer, 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 COMPUTER, 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 COMPUTER, 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 ArrayImpl_h

#define ArrayImpl_h

#include <wtf/RefPtr.h>

#include "Shared.h"

namespace WebCore {

class ArrayImpl

{

 public:

    ArrayImpl(size_t itemSize, size_t numItems = 0);

    ~ArrayImpl();

    ArrayImpl(const ArrayImpl &);

    ArrayImpl &operator=(const ArrayImpl &);

    void *at(size_t pos) const { return &d->data[pos * d->itemSize]; }

    void *data() const;

    unsigned size() const;

    bool resize(size_t size);

    void duplicate(const void *data, size_t size);

    bool fill(const void *item, int size = -1);

    void detach();

    bool operator==(const ArrayImpl &) const;

 private:

    class ArrayPrivate : public Shared<ArrayPrivate>

    {

    public:

        ArrayPrivate(size_t pNumItems, size_t pItemSize);

        ~ArrayPrivate();

        size_t numItems;

        size_t itemSize;

        char *data;

    };

    RefPtr<ArrayPrivate> d;

};

inline unsigned ArrayImpl::size() const

{

    return d->numItems;

}

}

#endif