ceph/src/boost/libs/spirit/include/boost/spirit/home/classic/actor/ref_actor.hpp

   1 /*=============================================================================
   2     Copyright (c) 2003 Jonathan de Halleux (dehalleux@pelikhan.com)
   3     http://spirit.sourceforge.net/
   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_SPIRIT_ACTOR_REF_ACTOR_HPP
   9 #define BOOST_SPIRIT_ACTOR_REF_ACTOR_HPP
  10
  11 #include <boost/spirit/home/classic/namespace.hpp>
  12
  13 namespace boost { namespace spirit {
  14
  15 BOOST_SPIRIT_CLASSIC_NAMESPACE_BEGIN
  16
  17     ///////////////////////////////////////////////////////////////////////////
  18     //  Summary:
  19     //  A semantic action policy holder. This holder stores a reference to ref,
  20     //  act methods are fead with this reference. The parse result is not used
  21     //  by this holder.
  22     //
  23     //  (This doc uses convention available in actors.hpp)
  24     //
  25     //  Constructor:
  26     //      ...(T& ref_);
  27     //      where ref_ is stored.
  28     //
  29     //  Action calls:
  30     //      act(ref);
  31     //
  32     //  () operators: both
  33     //
  34     ///////////////////////////////////////////////////////////////////////////
  35     template<
  36         typename T,
  37         typename ActionT
  38     >
  39     class ref_actor : public ActionT
  40     {
  41     private:
  42         T& ref;
  43     public:
  44         explicit
  45         ref_actor(T& ref_)
  46         : ref(ref_){}
  47
  48
  49         template<typename T2>
  50         void operator()(T2 const& /*val*/) const
  51         {
  52             this->act(ref); // defined in ActionT
  53         }
  54
  55
  56         template<typename IteratorT>
  57         void operator()(
  58             IteratorT const& /*first*/,
  59             IteratorT const& /*last*/
  60             ) const
  61         {
  62             this->act(ref); // defined in ActionT
  63         }
  64     };
  65
  66 BOOST_SPIRIT_CLASSIC_NAMESPACE_END
  67
  68 }}
  69
  70 #endif