Chris@16: /*=============================================================================
Chris@16:     Copyright (c) 2001-2007 Joel de Guzman
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 PHOENIX_OBJECT_CONSTRUCT_HPP
Chris@16: #define PHOENIX_OBJECT_CONSTRUCT_HPP
Chris@16: 
Chris@16: #include <boost/spirit/home/phoenix/core/compose.hpp>
Chris@16: #include <boost/preprocessor/repetition/enum_params_with_a_default.hpp>
Chris@16: 
Chris@16: namespace boost { namespace phoenix
Chris@16: {
Chris@16:     namespace detail
Chris@16:     {
Chris@16:         template <typename T>
Chris@16:         struct construct_eval
Chris@16:         {
Chris@16:             template <typename Env,
Chris@16:                 BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT(
Chris@16:                     PHOENIX_COMPOSITE_LIMIT, typename T, fusion::void_)>
Chris@16:             struct result
Chris@16:             {
Chris@16:                 typedef T type;
Chris@16:             };
Chris@16: 
Chris@16:             template <typename RT, typename Env>
Chris@16:             static RT
Chris@16:             eval(Env const& /*env*/)
Chris@16:             {
Chris@16:                 return RT();
Chris@16:             }
Chris@16: 
Chris@16:             template <typename RT, typename Env, typename A0>
Chris@16:             static RT
Chris@16:             eval(Env const& env, A0& _0)
Chris@16:             {
Chris@16:                 return RT(_0.eval(env));
Chris@16:             }
Chris@16: 
Chris@16:             template <typename RT
Chris@16:                 , typename Env, typename A0, typename A1>
Chris@16:             static RT
Chris@16:             eval(Env const& env, A0& _0, A1& _1)
Chris@16:             {
Chris@16:                 return RT(_0.eval(env), _1.eval(env));
Chris@16:             }
Chris@16: 
Chris@16:             //  Bring in the rest of the evals
Chris@16:             #include <boost/spirit/home/phoenix/object/detail/construct_eval.hpp>
Chris@16:         };
Chris@16:     }
Chris@16: 
Chris@16:     template <typename T>
Chris@16:     inline actor<typename as_composite<detail::construct_eval<T> >::type>
Chris@16:     construct()
Chris@16:     {
Chris@16:         return compose<detail::construct_eval<T> >();
Chris@16:     }
Chris@16: 
Chris@16:     template <typename T, typename A0>
Chris@16:     inline actor<typename as_composite<detail::construct_eval<T>, A0>::type>
Chris@16:     construct(A0 const& _0)
Chris@16:     {
Chris@16:         return compose<detail::construct_eval<T> >(_0);
Chris@16:     }
Chris@16: 
Chris@16:     template <typename T, typename A0, typename A1>
Chris@16:     inline actor<typename as_composite<detail::construct_eval<T>, A0, A1>::type>
Chris@16:     construct(A0 const& _0, A1 const& _1)
Chris@16:     {
Chris@16:         return compose<detail::construct_eval<T> >(_0, _1);
Chris@16:     }
Chris@16: 
Chris@16:     //  Bring in the rest of the new_ functions
Chris@16:     #include <boost/spirit/home/phoenix/object/detail/construct.hpp>
Chris@16: }}
Chris@16: 
Chris@16: #endif