deep_history.hpp

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#ifndef BOOST_STATECHART_DEEP_HISTORY_HPP_INCLUDED
#define BOOST_STATECHART_DEEP_HISTORY_HPP_INCLUDED
// Copyright 2002-2006 Andreas Huber Doenni
// Distributed under the Boost Software License, Version 1.0. (See accompany-
// ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 
 
 
#include <boost/mpl/bool.hpp>
#include <boost/static_assert.hpp>
 
 
 
namespace boost
{
namespace statechart
{
 
  
  
template< class DefaultState >
class deep_history
{
  public:
    // If you receive a 
    // "use of undefined type 'boost::STATIC_ASSERTION_FAILURE<x>'" or similar
    // compiler error here then you forgot to pass either
    // statechart::has_deep_history or statechart::has_full_history as the
    // last parameter of DefaultState's context.
    BOOST_STATIC_ASSERT( DefaultState::context_type::deep_history::value );
 
    // The following declarations should be private.
    // They are only public because many compilers lack template friends.
    typedef typename DefaultState::outermost_context_base_type
      outermost_context_base_type;
    typedef typename DefaultState::context_type context_type;
    typedef typename DefaultState::context_ptr_type context_ptr_type;
    typedef typename DefaultState::context_type_list context_type_list;
    typedef typename DefaultState::orthogonal_position orthogonal_position;
 
    static void deep_construct(
      const context_ptr_type & pContext,
      outermost_context_base_type & outermostContextBase )
    {
      outermostContextBase.template construct_with_deep_history<
        DefaultState >( pContext );
    }
};
 
 
 
} // namespace statechart
} // namespace boost
 
 
 
#endif