Chris@16: 
Chris@16: //  (C) Copyright Edward Diener 2011,2012,2013
Chris@16: //  Use, modification and distribution are subject to the Boost Software License,
Chris@16: //  Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
Chris@16: //  http://www.boost.org/LICENSE_1_0.txt).
Chris@16: 
Chris@16: #if !defined(BOOST_TTI_DETAIL_VM_TEMPLATE_PARAMS_HPP)
Chris@16: #define BOOST_TTI_DETAIL_VM_TEMPLATE_PARAMS_HPP
Chris@16: 
Chris@16: #include <boost/config.hpp>
Chris@16: #include <boost/preprocessor/config/config.hpp>
Chris@16: 
Chris@16: #if BOOST_PP_VARIADICS
Chris@16: 
Chris@101: #include <boost/mpl/eval_if.hpp>
Chris@16: #include <boost/mpl/has_xxx.hpp>
Chris@16: #include <boost/mpl/identity.hpp>
Chris@16: #include <boost/preprocessor/arithmetic/add.hpp>
Chris@16: #include <boost/preprocessor/variadic/size.hpp>
Chris@16: #include <boost/preprocessor/cat.hpp>
Chris@16: #include <boost/preprocessor/comparison/equal.hpp>
Chris@16: #include <boost/preprocessor/control/iif.hpp>
Chris@16: #include <boost/preprocessor/detail/is_binary.hpp>
Chris@16: #include <boost/preprocessor/facilities/is_empty.hpp>
Chris@16: #include <boost/preprocessor/seq/enum.hpp>
Chris@16: #include <boost/preprocessor/seq/seq.hpp>
Chris@16: #include <boost/preprocessor/variadic/elem.hpp>
Chris@16: #include <boost/preprocessor/variadic/to_seq.hpp>
Chris@16: #include <boost/tti/detail/dtemplate.hpp>
Chris@16: #include <boost/tti/detail/dtemplate_params.hpp>
Chris@101: #include <boost/type_traits/is_class.hpp>
Chris@16: 
Chris@16: #if !defined(BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE)
Chris@16: #if !BOOST_WORKAROUND(BOOST_MSVC, <= 1400)
Chris@16: 
Chris@16: #define BOOST_TTI_DETAIL_VM_TRAIT_HAS_TEMPLATE_CHECK_PARAMS(trait,name,...) \
Chris@16:   BOOST_TTI_DETAIL_HAS_MEMBER_WITH_FUNCTION_SFINAE \
Chris@16:     (  \
Chris@16:       ( BOOST_PP_ADD(BOOST_PP_VARIADIC_SIZE(__VA_ARGS__),4), ( trait, name, 1, false, __VA_ARGS__ ) )  \
Chris@16:     )  \
Chris@16: /**/
Chris@16: 
Chris@16: #else // !!BOOST_WORKAROUND(BOOST_MSVC, <= 1400)
Chris@16: 
Chris@16: #define BOOST_TTI_DETAIL_VM_TRAIT_HAS_TEMPLATE_CHECK_PARAMS(trait,name,...) \
Chris@16:   BOOST_TTI_DETAIL_HAS_MEMBER_WITH_TEMPLATE_SFINAE \
Chris@16:     ( \
Chris@16:       ( BOOST_PP_ADD(BOOST_PP_VARIADIC_SIZE(__VA_ARGS__),4), ( trait, name, 1, false, __VA_ARGS__ ) )  \
Chris@16:     ) \
Chris@16: /**/
Chris@16: 
Chris@16: #endif // !BOOST_WORKAROUND(BOOST_MSVC, <= 1400)
Chris@16: #else // defined(BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE)
Chris@16: 
Chris@16: #define BOOST_TTI_DETAIL_VM_TRAIT_HAS_TEMPLATE_CHECK_PARAMS(trait,name,...) \
Chris@16:   BOOST_TTI_DETAIL_SAME(trait,name) \
Chris@16: /**/
Chris@16: 
Chris@16: #endif // !defined(BOOST_MPL_CFG_NO_HAS_XXX_TEMPLATE)
Chris@16: 
Chris@16: #define BOOST_TTI_DETAIL_VM_CHECK_MORE_THAN_TWO(trait,...) \
Chris@16:   BOOST_PP_IIF \
Chris@16:     ( \
Chris@16:     BOOST_PP_EQUAL \
Chris@16:       ( \
Chris@16:       BOOST_PP_VARIADIC_SIZE(__VA_ARGS__), \
Chris@16:       2 \
Chris@16:       ), \
Chris@16:     BOOST_TTI_DETAIL_VM_TRAIT_CHOOSE_FROM_TWO, \
Chris@16:     BOOST_TTI_DETAIL_VM_TRAIT_EXPAND_ARGUMENTS \
Chris@16:     ) \
Chris@16:     (trait,__VA_ARGS__) \
Chris@16: /**/
Chris@16: 
Chris@16: #define BOOST_TTI_DETAIL_VM_TRAIT_CHOOSE_FROM_TWO(trait,...) \
Chris@16:   BOOST_PP_IIF \
Chris@16:     ( \
Chris@16:     BOOST_PP_IS_BINARY \
Chris@16:       ( \
Chris@16:       BOOST_PP_VARIADIC_ELEM(1,__VA_ARGS__) \
Chris@16:       ), \
Chris@16:     BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE_CHECK_PARAMS, \
Chris@16:     BOOST_TTI_DETAIL_VM_TRAIT_CHOOSE_IF_NIL \
Chris@16:     ) \
Chris@16:   ( \
Chris@16:   trait, \
Chris@16:   BOOST_PP_VARIADIC_ELEM(0,__VA_ARGS__), \
Chris@16:   BOOST_PP_VARIADIC_ELEM(1,__VA_ARGS__) \
Chris@16:   ) \
Chris@16: /**/
Chris@16: 
Chris@16: #define BOOST_TTI_DETAIL_VM_IS_NIL(param) \
Chris@16:   BOOST_PP_IS_EMPTY \
Chris@16:     ( \
Chris@16:     BOOST_PP_CAT(BOOST_TTI_DETAIL_IS_HELPER_,param) \
Chris@16:     ) \
Chris@16: /**/
Chris@16: 
Chris@16: #define BOOST_TTI_DETAIL_VM_TRAIT_CHOOSE_IF_NIL(trait,name,param) \
Chris@16:   BOOST_PP_IIF \
Chris@16:     ( \
Chris@16:     BOOST_TTI_DETAIL_VM_IS_NIL(param), \
Chris@16:     BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE, \
Chris@16:     BOOST_TTI_DETAIL_VM_CALL_TRAIT_HAS_TEMPLATE_CHECK_PARAMS \
Chris@16:     ) \
Chris@16:   (trait,name,param) \
Chris@16: /**/
Chris@16: 
Chris@16: #define BOOST_TTI_DETAIL_VM_VARIADIC_TAIL(...) \
Chris@16:   BOOST_PP_SEQ_ENUM \
Chris@16:     ( \
Chris@16:     BOOST_PP_SEQ_TAIL \
Chris@16:       ( \
Chris@16:       BOOST_PP_VARIADIC_TO_SEQ(__VA_ARGS__) \
Chris@16:       ) \
Chris@16:     ) \
Chris@16: /**/
Chris@16: 
Chris@16: #define BOOST_TTI_DETAIL_VM_TRAIT_EXPAND_ARGUMENTS(trait,...) \
Chris@16:   BOOST_TTI_DETAIL_VM_CALL_TRAIT_HAS_TEMPLATE_CHECK_PARAMS \
Chris@16:     ( \
Chris@16:     trait, \
Chris@16:     BOOST_PP_VARIADIC_ELEM(0,__VA_ARGS__), \
Chris@16:     BOOST_TTI_DETAIL_VM_VARIADIC_TAIL(__VA_ARGS__) \
Chris@16:     ) \
Chris@16: /**/
Chris@16: 
Chris@16: #define BOOST_TTI_DETAIL_VM_TRAIT_HAS_TEMPLATE(trait,...) \
Chris@16:   BOOST_TTI_DETAIL_TRAIT_HAS_TEMPLATE \
Chris@16:     ( \
Chris@16:     trait, \
Chris@16:     BOOST_PP_VARIADIC_ELEM(0,__VA_ARGS__), \
Chris@16:     BOOST_PP_NIL \
Chris@16:     ) \
Chris@16: /**/
Chris@16: 
Chris@101: #define BOOST_TTI_DETAIL_VM_CT_INVOKE(trait,name,...) \
Chris@101:   BOOST_TTI_DETAIL_VM_TRAIT_HAS_TEMPLATE_CHECK_PARAMS(BOOST_PP_CAT(trait,_detail),name,__VA_ARGS__) \
Chris@101:   template<class BOOST_TTI_DETAIL_TP_T> \
Chris@101:   struct BOOST_PP_CAT(trait,_detail_vm_ct_invoke) : \
Chris@101:   	BOOST_PP_CAT(trait,_detail)<BOOST_TTI_DETAIL_TP_T> \
Chris@101:     { \
Chris@101:     }; \
Chris@101: /**/
Chris@101: 
Chris@16: #define BOOST_TTI_DETAIL_VM_CALL_TRAIT_HAS_TEMPLATE_CHECK_PARAMS(trait,name,...) \
Chris@101:   BOOST_TTI_DETAIL_VM_CT_INVOKE(trait,name,__VA_ARGS__) \
Chris@16:   template<class BOOST_TTI_DETAIL_TP_T> \
Chris@16:   struct trait \
Chris@16:     { \
Chris@101:     typedef typename \
Chris@101:   	boost::mpl::eval_if \
Chris@101:   		< \
Chris@101:   		boost::is_class<BOOST_TTI_DETAIL_TP_T>, \
Chris@101:   		BOOST_PP_CAT(trait,_detail_vm_ct_invoke)<BOOST_TTI_DETAIL_TP_T>, \
Chris@101:   		boost::mpl::false_ \
Chris@101:   		>::type type; \
Chris@16:     BOOST_STATIC_CONSTANT(bool,value=type::value); \
Chris@16:     }; \
Chris@16: /**/
Chris@16: 
Chris@16: #endif // BOOST_PP_VARIADICS
Chris@16: 
Chris@16: #endif // BOOST_TTI_DETAIL_VM_TEMPLATE_PARAMS_HPP