boost/exception/diagnostic_information.hpp
//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
#if defined(__GNUC__) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
#pragma GCC system_header
#endif
#if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
#pragma warning(push,1)
#endif
#include <boost/config.hpp>
#include <boost/exception/get_error_info.hpp>
#include <boost/utility/enable_if.hpp>
#include <boost/config.hpp>
#include <exception>
#include <sstream>
#include <string>
#ifndef BOOST_NO_EXCEPTIONS
#include <boost/exception/current_exception_cast.hpp>
namespace
boost
{
namespace
exception_detail
{
std::string diagnostic_information_impl( boost::exception const *, std::exception const *, bool );
}
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,true);
else
return "No diagnostic information available.";
}
}
#endif
namespace
boost
{
namespace
exception_detail
{
inline
exception const *
get_boost_exception( exception const * e )
{
return e;
}
inline
exception const *
get_boost_exception( ... )
{
return 0;
}
inline
std::exception const *
get_std_exception( std::exception const * e )
{
return e;
}
inline
std::exception const *
get_std_exception( ... )
{
return 0;
}
inline
char const *
get_diagnostic_information( exception const & x, char const * header )
{
if( error_info_container * c=x.data_.get() )
#ifndef BOOST_NO_EXCEPTIONS
try
{
#endif
return c->diagnostic_information(header);
#ifndef BOOST_NO_EXCEPTIONS
}
catch(...)
{
}
#endif
return 0;
}
inline
std::string
diagnostic_information_impl( boost::exception const * be, std::exception const * se, bool with_what )
{
if( !be && !se )
return "Unknown exception.";
#ifndef BOOST_NO_RTTI
if( !be )
be=dynamic_cast<boost::exception const *>(se);
if( !se )
se=dynamic_cast<std::exception const *>(be);
#endif
char const * wh=0;
if( with_what && se )
{
wh=se->what();
if( be && exception_detail::get_diagnostic_information(*be,0)==wh )
return wh;
}
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)).type_.name() << '\n';
#endif
if( with_what && se )
tmp << "std::exception::what: " << wh << '\n';
if( be )
if( char const * s=exception_detail::get_diagnostic_information(*be,tmp.str().c_str()) )
if( *s )
return s;
return tmp.str();
}
}
template <class T>
std::string
diagnostic_information( T const & e )
{
return exception_detail::diagnostic_information_impl(exception_detail::get_boost_exception(&e),exception_detail::get_std_exception(&e),true);
}
inline
char const *
diagnostic_information_what( exception const & e ) throw()
{
char const * w=0;
#ifndef BOOST_NO_EXCEPTIONS
try
{
#endif
(void) exception_detail::diagnostic_information_impl(&e,0,false);
return exception_detail::get_diagnostic_information(e,0);
#ifndef BOOST_NO_EXCEPTIONS
}
catch(
... )
{
}
#endif
return w;
}
}
#if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
#pragma warning(pop)
#endif
#endif