boost: add eol property

[lyx.git] / boost / boost / exception / diagnostic_information.hpp

diff --git a/boost/boost/exception/diagnostic_information.hpp b/boost/boost/exception/diagnostic_information.hpp
index a456577b5e6fd1b991648fb036c56ab09c6ea8a3..1ea9dc1bab6a4965fcd08e28e76ba4f9da896eeb 100755 (executable)
--- a/boost/boost/exception/diagnostic_information.hpp
+++ b/boost/boost/exception/diagnostic_information.hpp
@@ -1,4 +1,4 @@
-//Copyright (c) 2006-2008 Emil Dotchevski and Reverge Studios, Inc.
+//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)
@@ -6,22 +6,181 @@
 #ifndef UUID_0552D49838DD11DD90146B8956D89593
 #define UUID_0552D49838DD11DD90146B8956D89593
 
-#include <boost/exception/exception.hpp>
+#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, 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 )
+            {
+            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
+            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)).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>
+    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,true);
+        }
+
+    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,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;
+        }
+    }
+
+#ifndef BOOST_NO_EXCEPTIONS
+#include <boost/exception/current_exception_cast.hpp>
 namespace
 boost
     {
     inline
     std::string
-    diagnostic_information( std::exception const & x )
+    current_exception_diagnostic_information()
         {
-        if( exception const * be = dynamic_cast<exception const *>(&x) )
-            return be->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 std::string("[ what: ") + x.what() + ", type: " + typeid(x).name() + " ]";
+            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