1 // Copyright David Abrahams 2002. 2 // Distributed under the Boost Software License, Version 1.0. (See 3 // accompanying file LICENSE_1_0.txt or copy at 4 // http://www.boost.org/LICENSE_1_0.txt) 5 #ifndef EXCEPTION_HANDLER_DWA2002810_HPP 6 # define EXCEPTION_HANDLER_DWA2002810_HPP 7 8 # include <boost/python/detail/config.hpp> 9 # include <boost/function/function0.hpp> 10 # include <boost/function/function2.hpp> 11 12 namespace boost { namespace python { namespace detail { 13 14 struct exception_handler; 15 16 typedef function2<bool, exception_handler const&, function0<void> const&> handler_function; 17 18 struct BOOST_PYTHON_DECL exception_handler 19 { 20 private: // types 21 22 public: 23 explicit exception_handler(handler_function const& impl); 24 25 inline bool handle(function0<void> const& f) const; 26 27 bool operator()(function0<void> const& f) const; 28 29 static exception_handler* chain; 30 31 private: 32 static exception_handler* tail; 33 34 handler_function m_impl; 35 exception_handler* m_next; 36 }; 37 38 handle(function0<void> const & f) const39inline bool exception_handler::handle(function0<void> const& f) const 40 { 41 return this->m_impl(*this, f); 42 } 43 44 BOOST_PYTHON_DECL void register_exception_handler(handler_function const& f); 45 46 }}} // namespace boost::python::detail 47 48 #endif // EXCEPTION_HANDLER_DWA2002810_HPP 49