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completes boost::result_of-based result type computation

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[SVN r38194]
This commit is contained in:
Tobias Schwinger
2007-07-12 09:08:46 +00:00
parent 046d853d63
commit 8eda5d32ca
16 changed files with 305 additions and 156 deletions
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48
include/boost/fusion/functional/adapter/unfused_generic.hpp
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@ -56,17 +56,23 @@ namespace boost { namespace fusion
using base::operator();
template <typename T>
struct result;
template <typename Sig>
struct result
{ };
template <typename Func>
struct result<unfused_generic<Func>()>
: base::r0
template <class Self>
struct result< Self const () >
: base::call_const_0_result_class
{ };
template <class Self>
struct result< Self() >
: base::call_0_result_class
{ };
#define BOOST_FUSION_CODE(tpl_params,arg_types,params,args) \
template <tpl_params> \
inline typename function::template result<function( \
inline typename function::template result<function const ( \
BOOST_PP_CAT(fusion::vector,N)<arg_types>)>::type \
operator()(params) const \
{ \
@ -91,16 +97,22 @@ namespace boost { namespace fusion
#define N BOOST_PP_ITERATION_1
#include BOOST_PP_ITERATE()
#undef N
#undef BOOST_FUSION_CODE
};
}}
namespace boost {
template<typename Func>
struct result_of<boost::fusion::unfused_generic<Func>()>
namespace boost
{
template<class F>
struct result_of<boost::fusion::unfused_generic<F> const ()>
{
typedef boost::fusion::unfused_generic<Func> function;
typedef typename function::template result<function()>::type type;
typedef typename boost::fusion::unfused_generic<F>::call_const_0_result type;
};
template<class F>
struct result_of<boost::fusion::unfused_generic<F>()>
{
typedef typename boost::fusion::unfused_generic<F>::call_0_result type;
};
}
@ -115,9 +127,17 @@ namespace boost {
#include <boost/fusion/functional/adapter/detail/pt_def.hpp>
#if BOOST_PP_SLOT_1() == 0
template <typename Func, BOOST_PP_ENUM_PARAMS(N,typename T)>
template <class Self, BOOST_PP_ENUM_PARAMS(N,typename T)>
struct result
<unfused_generic<Func>(BOOST_PP_ENUM_PARAMS(N,T))>
< Self const (BOOST_PP_ENUM_PARAMS(N,T)) >
: function::template result<function const (
BOOST_PP_CAT(fusion::vector,N)< BOOST_PP_ENUM_BINARY_PARAMS(N,
typename detail::gref<T,>::type BOOST_PP_INTERCEPT) >)>
{ };
template <class Self, BOOST_PP_ENUM_PARAMS(N,typename T)>
struct result
< Self(BOOST_PP_ENUM_PARAMS(N,T)) >
: function::template result<function(BOOST_PP_CAT(fusion::vector,N)<
BOOST_PP_ENUM_BINARY_PARAMS(N,typename detail::gref<T,>::type
BOOST_PP_INTERCEPT) >)>
@ -126,7 +146,7 @@ namespace boost {
#if BOOST_WORKAROUND(BOOST_MSVC,BOOST_TESTED_AT(1400))
template <BOOST_PP_ENUM_PARAMS(N,typename T)>
inline typename function::template result<function(
inline typename function::template result<function const(
BOOST_PP_CAT(fusion::vector,N)<BOOST_PP_ENUM_PARAMS(N,PT)>)>::type
operator()(BOOST_PP_ENUM_BINARY_PARAMS(N,PT,a)) const
{