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_STATEMENT_DO_WHILE_HPP
Chris@16: #define PHOENIX_STATEMENT_DO_WHILE_HPP
Chris@16: 
Chris@16: #include <boost/spirit/home/phoenix/core/composite.hpp>
Chris@16: #include <boost/spirit/home/phoenix/core/compose.hpp>
Chris@16: 
Chris@16: namespace boost { namespace phoenix
Chris@16: {
Chris@16:     struct do_while_eval
Chris@16:     {
Chris@16:         template <typename Env, typename Cond, typename Do>
Chris@16:         struct result
Chris@16:         {
Chris@16:             typedef void type;
Chris@16:         };
Chris@16: 
Chris@16:         template <typename RT, typename Env, typename Cond, typename Do>
Chris@16:         static void
Chris@16:         eval(Env const& env, Cond& cond, Do& do_)
Chris@16:         {
Chris@16:             do
Chris@16:                 do_.eval(env);
Chris@16:             while (cond.eval(env));
Chris@16:         }
Chris@16:     };
Chris@16: 
Chris@16:     template <typename Do>
Chris@16:     struct do_while_gen
Chris@16:     {
Chris@16:         do_while_gen(Do const& do_)
Chris@16:             : do_(do_) {}
Chris@16: 
Chris@16:         template <typename Cond>
Chris@16:         actor<typename as_composite<do_while_eval, Cond, Do>::type>
Chris@16:         while_(Cond const& cond) const
Chris@16:         {
Chris@16:             return compose<do_while_eval>(cond, do_);
Chris@16:         }
Chris@16: 
Chris@16:         Do do_;
Chris@16:     };
Chris@16: 
Chris@16:     struct do_gen
Chris@16:     {
Chris@16:         template <typename Do>
Chris@16:         do_while_gen<Do>
Chris@16:         operator[](Do const& do_) const
Chris@16:         {
Chris@16:             return do_while_gen<Do>(do_);
Chris@16:         }
Chris@16:     };
Chris@16: 
Chris@16:     do_gen const do_ = do_gen();
Chris@16: }}
Chris@16: 
Chris@16: #endif