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Diffstat (limited to 'boost/fusion/functional/invocation/invoke_procedure.hpp')
| -rw-r--r-- | boost/fusion/functional/invocation/invoke_procedure.hpp | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/boost/fusion/functional/invocation/invoke_procedure.hpp b/boost/fusion/functional/invocation/invoke_procedure.hpp new file mode 100644 index 0000000000..ddb5e5065d --- /dev/null +++ b/boost/fusion/functional/invocation/invoke_procedure.hpp @@ -0,0 +1,194 @@ +/*============================================================================= + 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> + { + +#if N > 0 + + static inline void call(Function & f, Sequence & s) + { + f(BOOST_PP_ENUM(N,M,~)); + } + +#else + + static inline void call(Function & f, Sequence & /*s*/) + { + f(); + } + +#endif + + }; + +#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> + { + +#if N > 0 + + 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,~) + f( BOOST_PP_ENUM_PARAMS(N,*i) ); + } + +#else + static inline void call(Function & f, Sequence & /*s*/) + { + f(); + } + +#endif + + }; + +#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 + |