Chris@16: // Copyright David Abrahams 2002.
Chris@16: // Distributed under the Boost Software License, Version 1.0. (See
Chris@16: // accompanying file LICENSE_1_0.txt or copy at
Chris@16: // http://www.boost.org/LICENSE_1_0.txt)
Chris@16: #ifndef EXCEPTION_HANDLER_DWA2002810_HPP
Chris@16: # define EXCEPTION_HANDLER_DWA2002810_HPP
Chris@16: 
Chris@16: # include <boost/python/detail/config.hpp>
Chris@16: # include <boost/function/function0.hpp>
Chris@16: # include <boost/function/function2.hpp>
Chris@16: 
Chris@16: namespace boost { namespace python { namespace detail {
Chris@16: 
Chris@16: struct BOOST_PYTHON_DECL_FORWARD exception_handler;
Chris@16: 
Chris@16: typedef function2<bool, exception_handler const&, function0<void> const&> handler_function;
Chris@16: 
Chris@16: struct BOOST_PYTHON_DECL exception_handler
Chris@16: {
Chris@16:  private: // types
Chris@16:     
Chris@16:  public:
Chris@16:     explicit exception_handler(handler_function const& impl);
Chris@16: 
Chris@16:     inline bool handle(function0<void> const& f) const;
Chris@16:     
Chris@16:     bool operator()(function0<void> const& f) const;
Chris@16:  
Chris@16:     static exception_handler* chain;
Chris@16:     
Chris@16:  private:
Chris@16:     static exception_handler* tail;
Chris@16:     
Chris@16:     handler_function m_impl;
Chris@16:     exception_handler* m_next;
Chris@16: };
Chris@16: 
Chris@16: 
Chris@16: inline bool exception_handler::handle(function0<void> const& f) const
Chris@16: {
Chris@16:     return this->m_impl(*this, f);
Chris@16: }
Chris@16: 
Chris@16: BOOST_PYTHON_DECL void register_exception_handler(handler_function const& f);
Chris@16: 
Chris@16: }}} // namespace boost::python::detail
Chris@16: 
Chris@16: #endif // EXCEPTION_HANDLER_DWA2002810_HPP