boost/statechart/detail/leaf_state.hpp
#ifndef BOOST_STATECHART_DETAIL_LEAF_STATE_HPP_INCLUDED
#define BOOST_STATECHART_DETAIL_LEAF_STATE_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/statechart/detail/state_base.hpp>
namespace boost
{
namespace statechart
{
namespace detail
{
//////////////////////////////////////////////////////////////////////////////
template< class Allocator, class RttiPolicy >
class leaf_state : public state_base< Allocator, RttiPolicy >
{
typedef state_base< Allocator, RttiPolicy > base_type;
protected:
//////////////////////////////////////////////////////////////////////////
leaf_state( typename RttiPolicy::id_provider_type idProvider ) :
base_type( idProvider )
{
}
~leaf_state() {}
public:
//////////////////////////////////////////////////////////////////////////
// The following declarations should be private.
// They are only public because many compilers lack template friends.
//////////////////////////////////////////////////////////////////////////
void set_list_position(
typename base_type::state_list_type::iterator listPosition )
{
listPosition_ = listPosition;
}
typedef typename base_type::leaf_state_ptr_type
direct_state_base_ptr_type;
virtual void remove_from_state_list(
typename base_type::state_list_type::iterator & statesEnd,
typename base_type::node_state_base_ptr_type & pOutermostUnstableState,
bool performFullExit )
{
--statesEnd;
swap( *listPosition_, *statesEnd );
( *listPosition_ )->set_list_position( listPosition_ );
direct_state_base_ptr_type & pState = *statesEnd;
// Because the list owns the leaf_state, this leads to the immediate
// termination of this state.
pState->exit_impl( pState, pOutermostUnstableState, performFullExit );
}
virtual void exit_impl(
direct_state_base_ptr_type & pSelf,
typename base_type::node_state_base_ptr_type & pOutermostUnstableState,
bool performFullExit ) = 0;
private:
//////////////////////////////////////////////////////////////////////////
typename base_type::state_list_type::iterator listPosition_;
};
} // namespace detail
} // namespace statechart
} // namespace boost
#endif