protot/3rdparty/RuntimeCompiledCpp/RuntimeObjectSystem/RuntimeInclude.h

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//
// Copyright (c) 2010-2011 Matthew Jack and Doug Binks
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would be
// appreciated but is not required.
// 2. Altered source versions must be plainly marked as such, and must not be
// misrepresented as being the original software.
// 3. This notice may not be removed or altered from any source distribution.
#pragma once
#ifndef RUNTIMEINCLUDE_INCLUDED
#define RUNTIMEINCLUDE_INCLUDED
#include <stddef.h>
#ifndef RCCPPOFF
//NOTE: the file macro will only emit the full path if /FC option is used in visual studio or /ZI (Which forces /FC)
//Following creates a list of files which are runtime modifiable, to be used in headers
//requires use of __COUNTER__ predefined macro, which is in gcc 4.3+, clang/llvm and MSVC
struct IRuntimeIncludeFileList
{
IRuntimeIncludeFileList( size_t max ) : MaxNum( max )
{
}
// GetIncludeFile may return 0, so you should iterate through to GetMaxNum() ignoring 0 returns
virtual const char* GetIncludeFile( size_t Num_ ) const
{
return 0;
}
size_t MaxNum; // initialized in constructor below
};
namespace
{
template< size_t COUNT > struct RuntimeIncludeFiles : public RuntimeIncludeFiles<COUNT-1>
{
RuntimeIncludeFiles( size_t max ) : RuntimeIncludeFiles<COUNT-1>( max )
{
}
RuntimeIncludeFiles() : RuntimeIncludeFiles<COUNT-1>( COUNT )
{
}
virtual const char* GetIncludeDir( size_t Num_ ) const
{
if( Num_ < COUNT )
{
return this->RuntimeIncludeFiles< COUNT-1 >::GetIncludeDir( Num_ );
}
else return 0;
}
};
template<> struct RuntimeIncludeFiles<0> : public IRuntimeIncludeFileList
{
RuntimeIncludeFiles( size_t max ) : IRuntimeIncludeFileList( max )
{
}
RuntimeIncludeFiles() : IRuntimeIncludeFileList( 0 )
{
}
virtual const char* GetIncludeDir( size_t Num_ ) const
{
return 0;
}
};
#define RUNTIME_MODIFIABLE_INCLUDE_BASE( N ) \
template<> struct RuntimeIncludeFiles< N + 1 > : public RuntimeIncludeFiles< N >\
{ \
RuntimeIncludeFiles( size_t max ) : RuntimeIncludeFiles<N>( max ) {} \
RuntimeIncludeFiles< N + 1 >() : RuntimeIncludeFiles<N>( N + 1 ) {} \
virtual const char* GetIncludeFile( size_t Num_ ) const \
{ \
if( Num_ <= N ) \
{ \
if( Num_ == N ) \
{ \
return __FILE__; \
} \
else return this->RuntimeIncludeFiles< N >::GetIncludeFile( Num_ ); \
} \
else return 0; \
} \
}; \
#define RUNTIME_MODIFIABLE_INCLUDE namespace { RUNTIME_MODIFIABLE_INCLUDE_BASE( __COUNTER__ ) }
}
#else
#define RUNTIME_MODIFIABLE_INCLUDE
#endif //RCCPPOFF
#endif //RUNTIMEINCLUDE_INCLUDED