Chris@16: /*==============================================================================
Chris@16:     Copyright (c) 2001-2010 Joel de Guzman
Chris@16:     Copyright (c) 2010 Eric Niebler
Chris@16: 
Chris@16:     Distributed under 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_PHOENIX_FUNCTION_FUNCTION_HPP
Chris@16: #define BOOST_PHOENIX_FUNCTION_FUNCTION_HPP
Chris@16: 
Chris@101: #include <boost/phoenix/config.hpp>
Chris@16: //#include <boost/phoenix/function/function_handling.hpp>
Chris@16: #include <boost/phoenix/core/detail/function_eval.hpp>
Chris@16: #include <boost/preprocessor/facilities/expand.hpp>
Chris@16: #include <boost/preprocessor/logical/or.hpp>
Chris@16: #include <boost/utility/result_of.hpp>
Chris@16: 
Chris@16: namespace boost { namespace phoenix
Chris@16: {
Chris@16:     /////////////////////////////////////////////////////////////////////////////
Chris@16:     // Functions
Chris@16:     /////////////////////////////////////////////////////////////////////////////
Chris@101:     
Chris@101:     namespace expression
Chris@101:     {
Chris@101:         template <typename F, BOOST_PHOENIX_typename_A_void(BOOST_PHOENIX_ACTOR_LIMIT)>
Chris@101:         struct function
Chris@101:             : detail::expression::function_eval<F, BOOST_PHOENIX_A(BOOST_PHOENIX_ACTOR_LIMIT)>
Chris@101:         {};
Chris@101:     }
Chris@16: 
Chris@16:     // functor which returns our lazy function call extension
Chris@16:     template<typename F>
Chris@16:     struct function
Chris@16:     {
Chris@16:         BOOST_CONSTEXPR function()
Chris@16:           : f()
Chris@16:         {}
Chris@16: 
Chris@101:         BOOST_CONSTEXPR function(F f_)
Chris@101:           : f(f_)
Chris@16:         {}
Chris@16: 
Chris@16:         template <typename Sig>
Chris@16:         struct result;
Chris@16: 
Chris@16:         typename detail::expression::function_eval<F>::type const
Chris@16:         operator()() const
Chris@16:         {
Chris@16:             return detail::expression::function_eval<F>::make(f);
Chris@16:         }
Chris@16: 
Chris@16:         // Bring in the rest
Chris@16:         #include <boost/phoenix/function/detail/function_operator.hpp>
Chris@16: 
Chris@16:         F f;
Chris@16:     };
Chris@16: }
Chris@16: 
Chris@16:     template<typename F>
Chris@16:     struct result_of<phoenix::function<F>()>
Chris@16:       : phoenix::detail::expression::function_eval<F>
Chris@16:     {};
Chris@16: 
Chris@16: }
Chris@16: 
Chris@16: #endif
Chris@16: