1 #ifndef BOOST_STATECHART_EXCEPTION_TRANSLATOR_HPP_INCLUDED 2 #define BOOST_STATECHART_EXCEPTION_TRANSLATOR_HPP_INCLUDED 3 ////////////////////////////////////////////////////////////////////////////// 4 // Copyright 2002-2006 Andreas Huber Doenni 5 // Distributed under the Boost Software License, Version 1.0. (See accompany- 6 // ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 7 ////////////////////////////////////////////////////////////////////////////// 8 9 10 11 #include <boost/statechart/event.hpp> 12 #include <boost/statechart/result.hpp> 13 14 15 16 namespace boost 17 { 18 namespace statechart 19 { 20 21 22 23 ////////////////////////////////////////////////////////////////////////////// 24 class exception_thrown : public event< exception_thrown > {}; 25 26 27 28 ////////////////////////////////////////////////////////////////////////////// 29 template< class ExceptionEvent = exception_thrown > 30 class exception_translator 31 { 32 public: 33 ////////////////////////////////////////////////////////////////////////// 34 // The following declarations should be private. 35 // They are only public because many compilers lack template friends. 36 ////////////////////////////////////////////////////////////////////////// 37 template< class Action, class ExceptionEventHandler > operator ()(Action action,ExceptionEventHandler eventHandler)38 result operator()( Action action, ExceptionEventHandler eventHandler ) 39 { 40 try 41 { 42 return action(); 43 } 44 catch ( ... ) 45 { 46 return eventHandler( ExceptionEvent() ); 47 } 48 } 49 }; 50 51 52 53 } // namespace statechart 54 } // namespace boost 55 56 57 58 #endif 59