Chris@16: // Copyright Daniel Wallin 2005. Use, modification and distribution is
Chris@16: // subject to the Boost Software License, Version 1.0. (See accompanying
Chris@16: // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #ifndef BOOST_PARAMETER_INVOKER_051210_HPP
Chris@16: # define BOOST_PARAMETER_INVOKER_051210_HPP
Chris@16: 
Chris@16: # include <boost/mpl/begin.hpp>
Chris@16: # include <boost/mpl/next.hpp>
Chris@16: # include <boost/mpl/deref.hpp>
Chris@16: # include <boost/mpl/size.hpp>
Chris@16: # include <boost/parameter/keyword.hpp>
Chris@16: # include <boost/preprocessor/iteration/iterate.hpp>
Chris@16: 
Chris@16: namespace boost { namespace parameter { namespace python { namespace aux {
Chris@16: 
Chris@16: template <long Arity, class M, class R, class Args>
Chris@16: struct invoker;
Chris@16: 
Chris@16: template <class M, class R>
Chris@16: struct make_invoker
Chris@16: {
Chris@16:     template <class Args>
Chris@16:     struct apply
Chris@16:     {
Chris@16:         typedef invoker<
Chris@16:             mpl::size<Args>::value, M, R, Args
Chris@16:         > type;
Chris@16:     };
Chris@16: };
Chris@16: 
Chris@16: template <long Arity, class M, class R, class T, class Args>
Chris@16: struct member_invoker;
Chris@16: 
Chris@16: template <class M, class R, class T>
Chris@16: struct make_member_invoker
Chris@16: {
Chris@16:     template <class Args>
Chris@16:     struct apply
Chris@16:     {
Chris@16:         typedef member_invoker<
Chris@16:             mpl::size<Args>::value, M, R, T, Args
Chris@16:         > type;
Chris@16:     };
Chris@16: };
Chris@16: 
Chris@16: template <long Arity, class T, class R, class Args>
Chris@16: struct call_invoker;
Chris@16: 
Chris@16: template <class T, class R>
Chris@16: struct make_call_invoker
Chris@16: {
Chris@16:     template <class Args>
Chris@16:     struct apply
Chris@16:     {
Chris@16:         typedef call_invoker<
Chris@16:             mpl::size<Args>::value, T, R, Args
Chris@16:         > type;
Chris@16:     };
Chris@16: };
Chris@16: 
Chris@16: template <long Arity, class T, class Args>
Chris@16: struct init_invoker;
Chris@16: 
Chris@16: template <class T>
Chris@16: struct make_init_invoker
Chris@16: {
Chris@16:     template <class Args>
Chris@16:     struct apply
Chris@16:     {
Chris@16:         typedef init_invoker<
Chris@16:             mpl::size<Args>::value, T, Args
Chris@16:         > type;
Chris@16:     };
Chris@16: };
Chris@16: 
Chris@16: template <class M, class R, class Args>
Chris@16: struct invoker<0, M, R, Args>
Chris@16: {
Chris@16:     static R execute()
Chris@16:     {
Chris@16:         return M()(boost::type<R>());
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: template <class M, class R, class T, class Args>
Chris@16: struct member_invoker<0, M, R, T, Args>
Chris@16: {
Chris@16:     static R execute(T& self)
Chris@16:     {
Chris@16:         return M()(boost::type<R>(), self);
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: template <class T, class R, class Args>
Chris@16: struct call_invoker<0, T, R, Args>
Chris@16: {
Chris@16:     static R execute(T& self)
Chris@16:     {
Chris@16:         return self();
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: template <class T, class Args>
Chris@16: struct init_invoker<0, T, Args>
Chris@16: {
Chris@16:     static T* execute(T& self)
Chris@16:     {
Chris@16:         return new T;
Chris@16:     }
Chris@16: };
Chris@16: 
Chris@16: # define BOOST_PP_ITERATION_PARAMS_1 (4, \
Chris@16:     (1, BOOST_PARAMETER_MAX_ARITY, <boost/parameter/aux_/python/invoker_iterate.hpp>, 1))
Chris@16: # include BOOST_PP_ITERATE()
Chris@16: 
Chris@16: # define BOOST_PP_ITERATION_PARAMS_1 (4, \
Chris@16:     (1, BOOST_PARAMETER_MAX_ARITY, <boost/parameter/aux_/python/invoker_iterate.hpp>, 2))
Chris@16: # include BOOST_PP_ITERATE()
Chris@16: 
Chris@16: # define BOOST_PP_ITERATION_PARAMS_1 (4, \
Chris@16:     (1, BOOST_PARAMETER_MAX_ARITY, <boost/parameter/aux_/python/invoker_iterate.hpp>, 3))
Chris@16: # include BOOST_PP_ITERATE()
Chris@16: 
Chris@16: # define BOOST_PP_ITERATION_PARAMS_1 (4, \
Chris@16:     (1, BOOST_PARAMETER_MAX_ARITY, <boost/parameter/aux_/python/invoker_iterate.hpp>, 4))
Chris@16: # include BOOST_PP_ITERATE()
Chris@16: 
Chris@16: }}}} // namespace boost::parameter::python::aux
Chris@16: 
Chris@16: #endif // BOOST_PARAMETER_INVOKER_051210_HPP
Chris@16: