/*---------------------------------------------------------------------------*
  Project:  Horizon
  File:     util_SizedEnum.h

  Copyright (C)2009-2012 Nintendo Co., Ltd.  All rights reserved.

  These coded instructions, statements, and computer programs contain
  proprietary information of Nintendo of America Inc. and/or Nintendo
  Company Ltd., and are protected by Federal copyright law.  They may
  not be disclosed to third parties or copied or duplicated in any form,
  in whole or in part, without the prior written consent of Nintendo.

  $Rev: 46347 $
 *---------------------------------------------------------------------------*/

#ifndef NN_UTIL_UTIL_SIZEDENUM_H_
#define NN_UTIL_UTIL_SIZEDENUM_H_

#include <nn/types.h>
#include <nn/util/util_StaticAssert.h>

#ifdef __cplusplus

namespace nn { namespace util {

//---------------------------------------------------------------------------
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template <typename StorageT, typename EnumT>
class SizedEnum
{
private:
    typedef SizedEnum<StorageT, EnumT> Self;
//    NN_STATIC_ASSERT(sizeof(EnumT) <= sizeof(StorageT));

private:
    StorageT        m_EnumValue;

public:
    //---------------------------------------------------------------------------
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    SizedEnum() {}

    //---------------------------------------------------------------------------
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    SizedEnum(EnumT e) { Set(e); }


    //---------------------------------------------------------------------------
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    operator EnumT() const { return Get(); }

    //---------------------------------------------------------------------------
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    Self& operator =(EnumT e) { Set(e); return *this; }


    //---------------------------------------------------------------------------
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    void Set(EnumT e) { m_EnumValue = static_cast<EnumT>(e); }

    //---------------------------------------------------------------------------
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    EnumT Get() const { return static_cast<EnumT>(m_EnumValue); }
};

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template <typename EnumT>
class SizedEnum1 : public SizedEnum<bit8, EnumT>
{
public:
    //---------------------------------------------------------------------------
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    SizedEnum1() : SizedEnum<bit8, EnumT>() {}

    //---------------------------------------------------------------------------
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    SizedEnum1(EnumT e) : SizedEnum<bit8, EnumT>(e) {}
};

//---------------------------------------------------------------------------
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template <typename EnumT>
class SizedEnum2 : public SizedEnum<bit16, EnumT>
{
public:
    //---------------------------------------------------------------------------
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    SizedEnum2() : SizedEnum<bit16, EnumT>() {}

    //---------------------------------------------------------------------------
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    SizedEnum2(EnumT e) : SizedEnum<bit16, EnumT>(e) {}
};

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template <typename EnumT>
class SizedEnum4 : public SizedEnum<bit32, EnumT>
{
public:
    //---------------------------------------------------------------------------
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    SizedEnum4() : SizedEnum<bit32, EnumT>() {}

    //---------------------------------------------------------------------------
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    SizedEnum4(EnumT e) : SizedEnum<bit32, EnumT>(e) {}
};

}}


#endif // __cplusplus

#endif /* NN_UTIL_UTIL_SIZEDENUM_H_ */