71 lines
2.1 KiB
C++
71 lines
2.1 KiB
C++
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#ifndef BOOST_STATECHART_TRANSITION_HPP_INCLUDED
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#define BOOST_STATECHART_TRANSITION_HPP_INCLUDED
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//////////////////////////////////////////////////////////////////////////////
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// Copyright 2002-2008 Andreas Huber Doenni
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// Distributed under the Boost Software License, Version 1.0. (See accompany-
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// ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//////////////////////////////////////////////////////////////////////////////
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#include <boost/statechart/result.hpp>
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#include <boost/statechart/detail/reaction_dispatcher.hpp>
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namespace boost
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{
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namespace statechart
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{
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//////////////////////////////////////////////////////////////////////////////
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template< class Event, class Destination,
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class TransitionContext = detail::no_context< Event >,
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void ( TransitionContext::*pTransitionAction )( const Event & ) =
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&detail::no_context< Event >::no_function >
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class transition
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{
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private:
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//////////////////////////////////////////////////////////////////////////
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template< class State >
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struct reactions
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{
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static result react_without_action( State & stt )
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{
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return stt.template transit< Destination >();
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}
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static result react_with_action( State & stt, const Event & evt )
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{
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return stt.template transit< Destination >( pTransitionAction, evt );
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}
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};
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public:
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//////////////////////////////////////////////////////////////////////////
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// The following declarations should be private.
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// They are only public because many compilers lack template friends.
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//////////////////////////////////////////////////////////////////////////
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template< class State, class EventBase, class IdType >
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static detail::reaction_result react(
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State & stt, const EventBase & evt, const IdType & eventType )
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{
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typedef detail::reaction_dispatcher<
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reactions< State >, State, EventBase, Event, TransitionContext, IdType
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> dispatcher;
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return dispatcher::react( stt, evt, eventType );
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}
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};
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} // namespace statechart
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} // namespace boost
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#endif
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