| /*============================================================================= |
| Copyright (c) 2005-2006 Joao Abecasis |
| Copyright (c) 2006-2007 Tobias Schwinger |
| |
| 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_FUSION_FUNCTIONAL_INVOCATION_INVOKE_PROCEDURE_HPP_INCLUDED) |
| #if !defined(BOOST_PP_IS_ITERATING) |
| |
| #include <boost/preprocessor/cat.hpp> |
| #include <boost/preprocessor/iteration/iterate.hpp> |
| #include <boost/preprocessor/arithmetic/dec.hpp> |
| #include <boost/preprocessor/repetition/repeat_from_to.hpp> |
| #include <boost/preprocessor/repetition/enum.hpp> |
| #include <boost/preprocessor/repetition/enum_shifted.hpp> |
| #include <boost/preprocessor/repetition/enum_params.hpp> |
| #include <boost/preprocessor/repetition/enum_shifted_params.hpp> |
| |
| #include <boost/type_traits/remove_reference.hpp> |
| |
| #include <boost/mpl/front.hpp> |
| |
| #include <boost/function_types/is_callable_builtin.hpp> |
| #include <boost/function_types/is_member_function_pointer.hpp> |
| #include <boost/function_types/parameter_types.hpp> |
| |
| #include <boost/fusion/support/category_of.hpp> |
| #include <boost/fusion/sequence/intrinsic/at.hpp> |
| #include <boost/fusion/sequence/intrinsic/size.hpp> |
| #include <boost/fusion/sequence/intrinsic/begin.hpp> |
| #include <boost/fusion/iterator/next.hpp> |
| #include <boost/fusion/iterator/deref.hpp> |
| #include <boost/fusion/functional/invocation/limits.hpp> |
| #include <boost/fusion/functional/invocation/detail/that_ptr.hpp> |
| |
| namespace boost { namespace fusion |
| { |
| namespace result_of |
| { |
| template <typename Function, class Sequence> struct invoke_procedure |
| { |
| typedef void type; |
| }; |
| } |
| |
| template <typename Function, class Sequence> |
| inline void invoke_procedure(Function, Sequence &); |
| |
| template <typename Function, class Sequence> |
| inline void invoke_procedure(Function, Sequence const &); |
| |
| //----- ---- --- -- - - - - |
| |
| namespace detail |
| { |
| namespace ft = function_types; |
| |
| template< |
| typename Function, class Sequence, |
| int N = result_of::size<Sequence>::value, |
| bool MFP = ft::is_member_function_pointer<Function>::value, |
| bool RandomAccess = traits::is_random_access<Sequence>::value |
| > |
| struct invoke_procedure_impl; |
| |
| #define BOOST_PP_FILENAME_1 \ |
| <boost/fusion/functional/invocation/invoke_procedure.hpp> |
| #define BOOST_PP_ITERATION_LIMITS \ |
| (0, BOOST_FUSION_INVOKE_PROCEDURE_MAX_ARITY) |
| #include BOOST_PP_ITERATE() |
| |
| } |
| |
| template <typename Function, class Sequence> |
| inline void invoke_procedure(Function f, Sequence & s) |
| { |
| detail::invoke_procedure_impl< |
| typename boost::remove_reference<Function>::type,Sequence |
| >::call(f,s); |
| } |
| |
| template <typename Function, class Sequence> |
| inline void invoke_procedure(Function f, Sequence const & s) |
| { |
| detail::invoke_procedure_impl< |
| typename boost::remove_reference<Function>::type,Sequence const |
| >::call(f,s); |
| } |
| |
| }} |
| |
| #define BOOST_FUSION_FUNCTIONAL_INVOCATION_INVOKE_PROCEDURE_HPP_INCLUDED |
| #else // defined(BOOST_PP_IS_ITERATING) |
| /////////////////////////////////////////////////////////////////////////////// |
| // |
| // Preprocessor vertical repetition code |
| // |
| /////////////////////////////////////////////////////////////////////////////// |
| #define N BOOST_PP_ITERATION() |
| |
| #define M(z,j,data) fusion::at_c<j>(s) |
| |
| template <typename Function, class Sequence> |
| struct invoke_procedure_impl<Function,Sequence,N,false,true> |
| { |
| static inline void call(Function & f, Sequence & s) |
| { |
| f(BOOST_PP_ENUM(N,M,~)); |
| } |
| }; |
| |
| #if N > 0 |
| template <typename Function, class Sequence> |
| struct invoke_procedure_impl<Function,Sequence,N,true,true> |
| { |
| static inline void call(Function & f, Sequence & s) |
| { |
| (that_ptr<typename mpl::front< |
| ft::parameter_types<Function> >::type |
| >::get(fusion::at_c<0>(s))->*f)(BOOST_PP_ENUM_SHIFTED(N,M,~)); |
| } |
| }; |
| #endif |
| |
| #undef M |
| |
| #define M(z,j,data) \ |
| typedef typename result_of::next< BOOST_PP_CAT(I,BOOST_PP_DEC(j)) \ |
| >::type I ## j ; \ |
| I##j i##j = fusion::next(BOOST_PP_CAT(i,BOOST_PP_DEC(j))); |
| |
| template <typename Function, class Sequence> |
| struct invoke_procedure_impl<Function,Sequence,N,false,false> |
| { |
| static inline void call(Function & f, Sequence & s) |
| { |
| #if N > 0 |
| typedef typename result_of::begin<Sequence>::type I0; |
| I0 i0 = fusion::begin(s); |
| BOOST_PP_REPEAT_FROM_TO(1,N,M,~) |
| #endif |
| f( BOOST_PP_ENUM_PARAMS(N,*i) ); |
| } |
| }; |
| |
| #if N > 0 |
| template <typename Function, class Sequence> |
| struct invoke_procedure_impl<Function,Sequence,N,true,false> |
| { |
| static inline void call(Function & f, Sequence & s) |
| { |
| typedef typename result_of::begin<Sequence>::type I0; |
| I0 i0 = fusion::begin(s); |
| BOOST_PP_REPEAT_FROM_TO(1,N,M,~) |
| |
| (that_ptr<typename mpl::front< |
| ft::parameter_types<Function> >::type |
| >::get(*i0)->*f)(BOOST_PP_ENUM_SHIFTED_PARAMS(N,*i)); |
| } |
| }; |
| #endif |
| |
| #undef M |
| |
| #undef N |
| #endif // defined(BOOST_PP_IS_ITERATING) |
| #endif |
| |