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// (C) Copyright Edward Diener 2011,2012,2013
// Use, modification and distribution are subject to the Boost Software License,
// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt).
#if !defined(BOOST_TTI_DETAIL_TEMPLATE_PARAMS_HPP)
#define BOOST_TTI_DETAIL_TEMPLATE_PARAMS_HPP
#include <boost/config.hpp>
#include <boost/mpl/bool.hpp>
#include <boost/mpl/eval_if.hpp>
#include <boost/mpl/has_xxx.hpp>
#include <boost/preprocessor/arithmetic/add.hpp>
#include <boost/preprocessor/arithmetic/sub.hpp>
#include <boost/preprocessor/array/elem.hpp>
#include <boost/preprocessor/cat.hpp>
#include <boost/preprocessor/punctuation/comma_if.hpp>
#include <boost/preprocessor/repetition/repeat.hpp>
#include <boost/preprocessor/repetition/enum.hpp>
#include <boost/preprocessor/array/enum.hpp>
#include <boost/preprocessor/array/size.hpp>
#include <boost/type_traits/is_class.hpp>
#if !defined(BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE)
#define BOOST_TTI_DETAIL_TEMPLATE_PARAMETERS(z,n,args) \
BOOST_PP_ARRAY_ELEM(BOOST_PP_ADD(4,n),args) \
/**/
#define BOOST_TTI_DETAIL_HAS_MEMBER_IMPLEMENTATION(args,introspect_macro) \
template \
< \
typename BOOST_TTI_DETAIL_TP_T, \
typename BOOST_TTI_DETAIL_TP_FALLBACK_ \
= boost::mpl::bool_< BOOST_PP_ARRAY_ELEM(3, args) > \
> \
struct BOOST_PP_ARRAY_ELEM(0, args) \
{ \
private: \
introspect_macro(args) \
public: \
static const bool value \
= BOOST_MPL_HAS_MEMBER_INTROSPECTION_NAME(args)< BOOST_TTI_DETAIL_TP_T >::value; \
typedef typename BOOST_MPL_HAS_MEMBER_INTROSPECTION_NAME(args) \
< \
BOOST_TTI_DETAIL_TP_T \
>::type type; \
}; \
/**/
#if !BOOST_WORKAROUND(BOOST_MSVC, <= 1400)
#define BOOST_TTI_DETAIL_HAS_MEMBER_MULTI_SUBSTITUTE(z,n,args) \
template \
< \
template \
< \
BOOST_PP_ENUM_ ## z \
( \
BOOST_PP_SUB \
( \
BOOST_PP_ARRAY_SIZE(args), \
4 \
), \
BOOST_TTI_DETAIL_TEMPLATE_PARAMETERS, \
args \
) \
> \
class BOOST_TTI_DETAIL_TM_V \
> \
struct BOOST_MPL_HAS_MEMBER_INTROSPECTION_SUBSTITUTE_NAME(args, n) \
{ \
}; \
/**/
#define BOOST_TTI_DETAIL_HAS_MEMBER_SUBSTITUTE(args) \
BOOST_PP_REPEAT \
( \
BOOST_PP_ARRAY_ELEM(2, args), \
BOOST_TTI_DETAIL_HAS_MEMBER_MULTI_SUBSTITUTE, \
args \
) \
/**/
#define BOOST_TTI_DETAIL_HAS_MEMBER_INTROSPECT(args) \
template< typename U > \
struct BOOST_MPL_HAS_MEMBER_INTROSPECTION_NAME(args) \
{ \
BOOST_TTI_DETAIL_HAS_MEMBER_SUBSTITUTE(args) \
BOOST_MPL_HAS_MEMBER_REJECT(args, BOOST_PP_NIL) \
BOOST_MPL_HAS_MEMBER_ACCEPT(args, BOOST_PP_NIL) \
BOOST_STATIC_CONSTANT \
( \
bool, value = BOOST_MPL_HAS_MEMBER_TEST(args) \
); \
typedef boost::mpl::bool_< value > type; \
}; \
/**/
#define BOOST_TTI_DETAIL_HAS_MEMBER_WITH_FUNCTION_SFINAE(args) \
BOOST_TTI_DETAIL_HAS_MEMBER_IMPLEMENTATION \
( \
args, \
BOOST_TTI_DETAIL_HAS_MEMBER_INTROSPECT \
) \
/**/
#else // !!BOOST_WORKAROUND(BOOST_MSVC, <= 1400)
#define BOOST_TTI_DETAIL_HAS_MEMBER_MULTI_SUBSTITUTE_WITH_TEMPLATE_SFINAE(z,n,args) \
template \
< \
template \
< \
BOOST_PP_ENUM_ ## z \
( \
BOOST_PP_SUB \
( \
BOOST_PP_ARRAY_SIZE(args), \
4 \
), \
BOOST_TTI_DETAIL_TEMPLATE_PARAMETERS, \
args \
) \
> \
class BOOST_TTI_DETAIL_TM_U \
> \
struct BOOST_MPL_HAS_MEMBER_INTROSPECTION_SUBSTITUTE_NAME_WITH_TEMPLATE_SFINAE \
( \
args, \
n \
) \
{ \
typedef \
BOOST_MPL_HAS_MEMBER_INTROSPECTION_SUBSTITUTE_TAG_NAME(args) \
type; \
}; \
/**/
#define BOOST_TTI_DETAIL_HAS_MEMBER_SUBSTITUTE_WITH_TEMPLATE_SFINAE(args) \
typedef void \
BOOST_MPL_HAS_MEMBER_INTROSPECTION_SUBSTITUTE_TAG_NAME(args); \
BOOST_PP_REPEAT \
( \
BOOST_PP_ARRAY_ELEM(2, args), \
BOOST_TTI_DETAIL_HAS_MEMBER_MULTI_SUBSTITUTE_WITH_TEMPLATE_SFINAE, \
args \
) \
/**/
#define BOOST_TTI_DETAIL_HAS_MEMBER_INTROSPECT_WITH_TEMPLATE_SFINAE(args) \
BOOST_MPL_HAS_MEMBER_REJECT_WITH_TEMPLATE_SFINAE(args,BOOST_PP_NIL) \
BOOST_MPL_HAS_MEMBER_ACCEPT_WITH_TEMPLATE_SFINAE(args,BOOST_PP_NIL) \
template< typename BOOST_TTI_DETAIL_TP_U > \
struct BOOST_MPL_HAS_MEMBER_INTROSPECTION_NAME(args) \
: BOOST_MPL_HAS_MEMBER_INTROSPECTION_TEST_NAME(args)< BOOST_TTI_DETAIL_TP_U > { \
}; \
/**/
#define BOOST_TTI_DETAIL_HAS_MEMBER_WITH_TEMPLATE_SFINAE(args) \
BOOST_TTI_DETAIL_HAS_MEMBER_SUBSTITUTE_WITH_TEMPLATE_SFINAE \
( \
args \
) \
BOOST_TTI_DETAIL_HAS_MEMBER_IMPLEMENTATION \
( \
args, \
BOOST_TTI_DETAIL_HAS_MEMBER_INTROSPECT_WITH_TEMPLATE_SFINAE \
) \
/**/
#endif // !BOOST_WORKAROUND(BOOST_MSVC, <= 1400)
#else // defined(BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE)
#define BOOST_TTI_DETAIL_SAME(trait,name) \
BOOST_MPL_HAS_XXX_TEMPLATE_NAMED_DEF \
( \
trait, \
name, \
false \
) \
/**/
#define BOOST_TTI_DETAIL_TRAIT_CALL_HAS_TEMPLATE_CHECK_PARAMS(trait,name,tp) \
BOOST_TTI_DETAIL_SAME(trait,name) \
/**/
#endif // !BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE
#define BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE_CHECK_PARAMS_OP(trait,name,tpArray) \
BOOST_TTI_DETAIL_TRAIT_CALL_HAS_TEMPLATE_CHECK_PARAMS(BOOST_PP_CAT(trait,_detail),name,tpArray) \
template<class BOOST_TTI_DETAIL_TP_T> \
struct BOOST_PP_CAT(trait,_detail_cp_op) : \
BOOST_PP_CAT(trait,_detail)<BOOST_TTI_DETAIL_TP_T> \
{ \
}; \
/**/
#define BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE_CHECK_PARAMS(trait,name,tpArray) \
BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE_CHECK_PARAMS_OP(trait,name,tpArray) \
template<class BOOST_TTI_DETAIL_TP_T> \
struct trait \
{ \
typedef typename \
boost::mpl::eval_if \
< \
boost::is_class<BOOST_TTI_DETAIL_TP_T>, \
BOOST_PP_CAT(trait,_detail_cp_op)<BOOST_TTI_DETAIL_TP_T>, \
boost::mpl::false_ \
>::type type; \
BOOST_STATIC_CONSTANT(bool,value=type::value); \
}; \
/**/
#if !defined(BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE)
#if !BOOST_WORKAROUND(BOOST_MSVC, <= 1400)
#define BOOST_TTI_DETAIL_TRAIT_CALL_HAS_TEMPLATE_CHECK_PARAMS(trait,name,tpArray) \
BOOST_TTI_DETAIL_HAS_MEMBER_WITH_FUNCTION_SFINAE \
( \
( BOOST_PP_ADD(BOOST_PP_ARRAY_SIZE(tpArray),4), ( trait, name, 1, false, BOOST_PP_ARRAY_ENUM(tpArray) ) ) \
) \
/**/
#else // BOOST_WORKAROUND(BOOST_MSVC, <= 1400)
#define BOOST_TTI_DETAIL_TRAIT_CALL_HAS_TEMPLATE_CHECK_PARAMS(trait,name,tpArray) \
BOOST_TTI_DETAIL_HAS_MEMBER_WITH_TEMPLATE_SFINAE \
( \
( BOOST_PP_ADD(BOOST_PP_ARRAY_SIZE(tpArray),4), ( trait, name, 1, false, BOOST_PP_ARRAY_ENUM(tpArray) ) ) \
) \
/**/
#endif // !BOOST_WORKAROUND(BOOST_MSVC, <= 1400)
#endif // !defined(BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE)
#endif // BOOST_TTI_DETAIL_TEMPLATE_PARAMS_HPP
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