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#ifndef BOOST_STATECHART_CUSTOM_REACTION_HPP_INCLUDED
#define BOOST_STATECHART_CUSTOM_REACTION_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/result.hpp>
#include <boost/cast.hpp> // boost::polymorphic_downcast
namespace boost
{
namespace statechart
{
class event_base;
//////////////////////////////////////////////////////////////////////////////
template< class Event >
class custom_reaction
{
public:
//////////////////////////////////////////////////////////////////////////
// The following declarations should be private.
// They are only public because many compilers lack template friends.
//////////////////////////////////////////////////////////////////////////
template< class State, class EventBase, class IdType >
static detail::reaction_result react(
State & stt, const EventBase & evt, const IdType & eventType )
{
if ( eventType == Event::static_type() )
{
return detail::result_utility::get_result(
stt.react( *polymorphic_downcast< const Event * >( &evt ) ) );
}
else
{
return detail::no_reaction;
}
}
};
template<>
class custom_reaction< event_base >
{
public:
//////////////////////////////////////////////////////////////////////////
// The following declarations should be private.
// They are only public because many compilers lack template friends.
//////////////////////////////////////////////////////////////////////////
template< class State, class EventBase, class IdType >
static detail::reaction_result react(
State & stt, const EventBase & evt, const IdType & )
{
return detail::result_utility::get_result( stt.react( evt ) );
}
};
} // namespace statechart
} // namespace boost
#endif
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