diff options
Diffstat (limited to 'ext/boost/exception/diagnostic_information.hpp')
-rw-r--r-- | ext/boost/exception/diagnostic_information.hpp | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/ext/boost/exception/diagnostic_information.hpp b/ext/boost/exception/diagnostic_information.hpp new file mode 100644 index 0000000000..01f7b35823 --- /dev/null +++ b/ext/boost/exception/diagnostic_information.hpp @@ -0,0 +1,158 @@ +//Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc. + +//Distributed under the Boost Software License, Version 1.0. (See accompanying +//file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) + +#ifndef UUID_0552D49838DD11DD90146B8956D89593 +#define UUID_0552D49838DD11DD90146B8956D89593 + +#include <boost/config.hpp> +#include <boost/exception/get_error_info.hpp> +#include <boost/exception/detail/exception_ptr_base.hpp> +#include <boost/utility/enable_if.hpp> +#include <exception> +#include <sstream> +#include <string> + +namespace +boost + { + namespace + exception_detail + { + template <class T> + struct + enable_boost_exception_overload + { + struct yes { char q[100]; }; + typedef char no; + static yes check(exception const *); + static no check(...); + enum e { value=sizeof(check((T*)0))==sizeof(yes) }; + }; + + template <class T> + struct + enable_std_exception_overload + { + struct yes { char q[100]; }; + typedef char no; + static yes check(std::exception const *); + static no check(...); + enum e { value = !enable_boost_exception_overload<T>::value && sizeof(check((T*)0))==sizeof(yes) }; + }; + + inline + char const * + get_diagnostic_information( exception const & x ) + { + if( error_info_container * c=x.data_.get() ) +#ifndef BOOST_NO_EXCEPTIONS + try + { +#endif + return c->diagnostic_information(); +#ifndef BOOST_NO_EXCEPTIONS + } + catch(...) + { + } +#endif + return 0; + } + + inline + std::string + diagnostic_information_impl( boost::exception const * be, std::exception const * se ) + { + BOOST_ASSERT(be||se); +#ifndef BOOST_NO_RTTI + if( !se ) + se = dynamic_cast<std::exception const *>(be); + if( !be ) + be = dynamic_cast<boost::exception const *>(se); +#endif + std::ostringstream tmp; + if( be ) + { + if( char const * const * f=get_error_info<throw_file>(*be) ) + { + tmp << *f; + if( int const * l=get_error_info<throw_line>(*be) ) + tmp << '(' << *l << "): "; + } + tmp << "Throw in function "; + if( char const * const * fn=get_error_info<throw_function>(*be) ) + tmp << *fn; + else + tmp << "(unknown)"; + tmp << '\n'; + } +#ifndef BOOST_NO_RTTI + tmp << std::string("Dynamic exception type: ") << + (be?BOOST_EXCEPTION_DYNAMIC_TYPEID(*be):BOOST_EXCEPTION_DYNAMIC_TYPEID(*se)).name() << '\n'; +#endif + if( se ) + tmp << "std::exception::what: " << se->what() << '\n'; + if( be ) + if( char const * s=exception_detail::get_diagnostic_information(*be) ) + if( *s ) + tmp << s; + return tmp.str(); + } + } + + template <class T> + inline + typename enable_if<exception_detail::enable_boost_exception_overload<T>,std::string>::type + diagnostic_information( T const & e ) + { + return exception_detail::diagnostic_information_impl(&e,0); + } + + template <class T> + inline + typename enable_if<exception_detail::enable_std_exception_overload<T>,std::string>::type + diagnostic_information( T const & e ) + { + return exception_detail::diagnostic_information_impl(0,&e); + } + } + +#ifndef BOOST_NO_EXCEPTIONS +#include <boost/exception/current_exception_cast.hpp> +namespace +boost + { + inline + std::string + current_exception_diagnostic_information() + { + boost::exception const * be=current_exception_cast<boost::exception const>(); + std::exception const * se=current_exception_cast<std::exception const>(); + if( be || se ) + return exception_detail::diagnostic_information_impl(be,se); + else + return "No diagnostic information available."; + } + + inline + std::string + diagnostic_information( exception_detail::exception_ptr_base const & p ) + { + if( !p._empty() ) + try + { + p._rethrow(); + } + catch( + ... ) + { + return current_exception_diagnostic_information(); + } + return "<empty>"; + } + } +#endif + +#endif |