ceph/src/boost/libs/phoenix/include/boost/phoenix/object/delete.hpp

   1 /*==============================================================================
   2     Copyright (c) 2001-2010 Joel de Guzman
   3     Copyright (c) 2010 Thomas Heller
   4
   5     Distributed under the Boost Software License, Version 1.0. (See accompanying
   6     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   7 ==============================================================================*/
   8 #ifndef BOOST_PHOENIX_OBJECT_DELETE_HPP
   9 #define BOOST_PHOENIX_OBJECT_DELETE_HPP
  10
  11 #include <boost/phoenix/core/limits.hpp>
  12 #include <boost/phoenix/core/expression.hpp>
  13 #include <boost/phoenix/core/meta_grammar.hpp>
  14 #include <boost/phoenix/core/call.hpp>
  15
  16 BOOST_PHOENIX_DEFINE_EXPRESSION(
  17     (boost)(phoenix)(delete_)
  18   , (meta_grammar)
  19 )
  20
  21 namespace boost { namespace phoenix
  22 {
  23     struct delete_eval
  24     {
  25         typedef void result_type;
  26
  27         template <typename P, typename Context>
  28         result_type
  29         operator()(P const& p, Context const &ctx) const
  30         {
  31             delete boost::phoenix::eval(p, ctx);
  32         }
  33     };
  34
  35     template <typename Dummy>
  36     struct default_actions::when<rule::delete_, Dummy>
  37         : call<delete_eval>
  38     {};
  39
  40     template <typename P>
  41     inline
  42     typename expression::delete_<P>::type const
  43     delete_(P const& p)
  44     {
  45         return expression::delete_<P>::make(p);
  46     }
  47
  48 }}
  49
  50 #endif