Chris@16: //Copyright (c) 2006-2010 Emil Dotchevski and Reverge Studios, Inc.
Chris@16: 
Chris@16: //Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16: //file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: 
Chris@16: #ifndef UUID_8D22C4CA9CC811DCAA9133D256D89593
Chris@16: #define UUID_8D22C4CA9CC811DCAA9133D256D89593
Chris@16: #if (__GNUC__*100+__GNUC_MINOR__>301) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
Chris@16: #pragma GCC system_header
Chris@16: #endif
Chris@16: #if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
Chris@16: #pragma warning(push,1)
Chris@16: #endif
Chris@16: 
Chris@16: #include <boost/exception/exception.hpp>
Chris@16: #include <boost/exception/to_string_stub.hpp>
Chris@16: #include <boost/exception/detail/error_info_impl.hpp>
Chris@16: #include <boost/shared_ptr.hpp>
Chris@16: #include <boost/config.hpp>
Chris@16: #include <map>
Chris@16: 
Chris@16: namespace
Chris@16: boost
Chris@16:     {
Chris@16:     template <class Tag,class T>
Chris@16:     inline
Chris@16:     std::string
Chris@16:     error_info_name( error_info<Tag,T> const & x )
Chris@16:         {
Chris@16:         return tag_type_name<Tag>();
Chris@16:         }
Chris@16: 
Chris@16:     template <class Tag,class T>
Chris@16:     inline
Chris@16:     std::string
Chris@16:     to_string( error_info<Tag,T> const & x )
Chris@16:         {
Chris@16:         return '[' + error_info_name(x) + "] = " + to_string_stub(x.value()) + '\n';
Chris@16:         }
Chris@16: 
Chris@16:     template <class Tag,class T>
Chris@16:     inline
Chris@16:     error_info<Tag,T>::
Chris@16:     error_info( value_type const & value ):
Chris@16:         value_(value)
Chris@16:         {
Chris@16:         }
Chris@16: 
Chris@16:     template <class Tag,class T>
Chris@16:     inline
Chris@16:     error_info<Tag,T>::
Chris@16:     ~error_info() throw()
Chris@16:         {
Chris@16:         }
Chris@16: 
Chris@16:     template <class Tag,class T>
Chris@16:     inline
Chris@16:     std::string
Chris@16:     error_info<Tag,T>::
Chris@16:     name_value_string() const
Chris@16:         {
Chris@16:         return to_string_stub(*this);
Chris@16:         }
Chris@16: 
Chris@16:     namespace
Chris@16:     exception_detail
Chris@16:         {
Chris@16:         class
Chris@16:         error_info_container_impl:
Chris@16:             public error_info_container
Chris@16:             {
Chris@16:             public:
Chris@16: 
Chris@16:             error_info_container_impl():
Chris@16:                 count_(0)
Chris@16:                 {
Chris@16:                 }
Chris@16: 
Chris@16:             ~error_info_container_impl() throw()
Chris@16:                 {
Chris@16:                 }
Chris@16: 
Chris@16:             void
Chris@16:             set( shared_ptr<error_info_base> const & x, type_info_ const & typeid_ )
Chris@16:                 {
Chris@16:                 BOOST_ASSERT(x);
Chris@16:                 info_[typeid_] = x;
Chris@16:                 diagnostic_info_str_.clear();
Chris@16:                 }
Chris@16: 
Chris@16:             shared_ptr<error_info_base>
Chris@16:             get( type_info_ const & ti ) const
Chris@16:                 {
Chris@16:                 error_info_map::const_iterator i=info_.find(ti);
Chris@16:                 if( info_.end()!=i )
Chris@16:                     {
Chris@16:                     shared_ptr<error_info_base> const & p = i->second;
Chris@16: #ifndef BOOST_NO_RTTI
Chris@16:                     BOOST_ASSERT( *BOOST_EXCEPTION_DYNAMIC_TYPEID(*p).type_==*ti.type_ );
Chris@16: #endif
Chris@16:                     return p;
Chris@16:                     }
Chris@16:                 return shared_ptr<error_info_base>();
Chris@16:                 }
Chris@16: 
Chris@16:             char const *
Chris@16:             diagnostic_information( char const * header ) const
Chris@16:                 {
Chris@16:                 if( header )
Chris@16:                     {
Chris@16:                     std::ostringstream tmp;
Chris@16:                     tmp << header;
Chris@16:                     for( error_info_map::const_iterator i=info_.begin(),end=info_.end(); i!=end; ++i )
Chris@16:                         {
Chris@16:                         error_info_base const & x = *i->second;
Chris@16:                         tmp << x.name_value_string();
Chris@16:                         }
Chris@16:                     tmp.str().swap(diagnostic_info_str_);
Chris@16:                     }
Chris@16:                 return diagnostic_info_str_.c_str();
Chris@16:                 }
Chris@16: 
Chris@16:             private:
Chris@16: 
Chris@16:             friend class boost::exception;
Chris@16: 
Chris@16:             typedef std::map< type_info_, shared_ptr<error_info_base> > error_info_map;
Chris@16:             error_info_map info_;
Chris@16:             mutable std::string diagnostic_info_str_;
Chris@16:             mutable int count_;
Chris@16: 
Chris@16:             error_info_container_impl( error_info_container_impl const & );
Chris@16:             error_info_container_impl & operator=( error_info_container const & );
Chris@16: 
Chris@16:             void
Chris@16:             add_ref() const
Chris@16:                 {
Chris@16:                 ++count_;
Chris@16:                 }
Chris@16: 
Chris@16:             bool
Chris@16:             release() const
Chris@16:                 {
Chris@16:                 if( --count_ )
Chris@16:                     return false;
Chris@16:                 else
Chris@16:                     {
Chris@16:                     delete this;
Chris@16:                     return true;
Chris@16:                     }
Chris@16:                 }
Chris@16: 
Chris@16:             refcount_ptr<error_info_container>
Chris@16:             clone() const
Chris@16:                 {
Chris@16:                 refcount_ptr<error_info_container> p;
Chris@16:                 error_info_container_impl * c=new error_info_container_impl;
Chris@16:                 p.adopt(c);
Chris@16:                 c->info_ = info_;
Chris@16:                 return p;
Chris@16:                 }
Chris@16:             };
Chris@16: 
Chris@16:         template <class E,class Tag,class T>
Chris@16:         inline
Chris@16:         E const &
Chris@16:         set_info( E const & x, error_info<Tag,T> const & v )
Chris@16:             {
Chris@16:             typedef error_info<Tag,T> error_info_tag_t;
Chris@16:             shared_ptr<error_info_tag_t> p( new error_info_tag_t(v) );
Chris@16:             exception_detail::error_info_container * c=x.data_.get();
Chris@16:             if( !c )
Chris@16:                 x.data_.adopt(c=new exception_detail::error_info_container_impl);
Chris@16:             c->set(p,BOOST_EXCEPTION_STATIC_TYPEID(error_info_tag_t));
Chris@16:             return x;
Chris@16:             }
Chris@16: 
Chris@16:         template <class T>
Chris@16:         struct
Chris@16:         derives_boost_exception
Chris@16:             {
Chris@16:             enum e { value = (sizeof(dispatch_boost_exception((T*)0))==sizeof(large_size)) };
Chris@16:             };
Chris@16:         }
Chris@16: 
Chris@16:     template <class E,class Tag,class T>
Chris@16:     inline
Chris@16:     typename enable_if<exception_detail::derives_boost_exception<E>,E const &>::type
Chris@16:     operator<<( E const & x, error_info<Tag,T> const & v )
Chris@16:         {
Chris@16:         return exception_detail::set_info(x,v);
Chris@16:         }
Chris@16:     }
Chris@16: 
Chris@16: #if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
Chris@16: #pragma warning(pop)
Chris@16: #endif
Chris@16: #endif