| //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_8D22C4CA9CC811DCAA9133D256D89593 |
| #define UUID_8D22C4CA9CC811DCAA9133D256D89593 |
| |
| #include <boost/exception/exception.hpp> |
| #include <boost/exception/to_string_stub.hpp> |
| #include <boost/exception/detail/error_info_impl.hpp> |
| #include <boost/shared_ptr.hpp> |
| #include <map> |
| |
| namespace |
| boost |
| { |
| template <class Tag,class T> |
| inline |
| typename enable_if<has_to_string<T>,std::string>::type |
| to_string( error_info<Tag,T> const & x ) |
| { |
| return to_string(x.value()); |
| } |
| |
| template <class Tag,class T> |
| inline |
| error_info<Tag,T>:: |
| error_info( value_type const & value ): |
| value_(value) |
| { |
| } |
| |
| template <class Tag,class T> |
| inline |
| error_info<Tag,T>:: |
| ~error_info() throw() |
| { |
| } |
| |
| template <class Tag,class T> |
| inline |
| char const * |
| error_info<Tag,T>:: |
| tag_typeid_name() const |
| { |
| return tag_type_name<Tag>(); |
| } |
| |
| template <class Tag,class T> |
| inline |
| std::string |
| error_info<Tag,T>:: |
| value_as_string() const |
| { |
| return to_string_stub(*this); |
| } |
| |
| namespace |
| exception_detail |
| { |
| class |
| error_info_container_impl: |
| public error_info_container |
| { |
| public: |
| |
| error_info_container_impl(): |
| count_(0) |
| { |
| } |
| |
| ~error_info_container_impl() throw() |
| { |
| } |
| |
| void |
| set( shared_ptr<error_info_base const> const & x, type_info_ const & typeid_ ) |
| { |
| BOOST_ASSERT(x); |
| info_[typeid_] = x; |
| diagnostic_info_str_.clear(); |
| } |
| |
| shared_ptr<error_info_base const> |
| get( type_info_ const & ti ) const |
| { |
| error_info_map::const_iterator i=info_.find(ti); |
| if( info_.end()!=i ) |
| { |
| shared_ptr<error_info_base const> const & p = i->second; |
| #ifndef BOOST_NO_RTTI |
| BOOST_ASSERT( BOOST_EXCEPTION_DYNAMIC_TYPEID(*p)==ti ); |
| #endif |
| return p; |
| } |
| return shared_ptr<error_info_base const>(); |
| } |
| |
| char const * |
| diagnostic_information() const |
| { |
| if( diagnostic_info_str_.empty() ) |
| { |
| std::ostringstream tmp; |
| for( error_info_map::const_iterator i=info_.begin(),end=info_.end(); i!=end; ++i ) |
| { |
| shared_ptr<error_info_base const> const & x = i->second; |
| tmp << '[' << x->tag_typeid_name() << "] = " << x->value_as_string() << '\n'; |
| } |
| tmp.str().swap(diagnostic_info_str_); |
| } |
| return diagnostic_info_str_.c_str(); |
| } |
| |
| private: |
| |
| friend class boost::exception; |
| |
| typedef std::map< type_info_, shared_ptr<error_info_base const> > error_info_map; |
| error_info_map info_; |
| mutable std::string diagnostic_info_str_; |
| mutable int count_; |
| |
| void |
| add_ref() const |
| { |
| ++count_; |
| } |
| |
| void |
| release() const |
| { |
| if( !--count_ ) |
| delete this; |
| } |
| }; |
| } |
| |
| template <class E,class Tag,class T> |
| inline |
| E const & |
| operator<<( E const & x, error_info<Tag,T> const & v ) |
| { |
| typedef error_info<Tag,T> error_info_tag_t; |
| shared_ptr<error_info_tag_t> p( new error_info_tag_t(v) ); |
| exception_detail::error_info_container * c; |
| if( !(c=x.data_.get()) ) |
| x.data_.adopt(c=new exception_detail::error_info_container_impl); |
| c->set(p,BOOST_EXCEPTION_STATIC_TYPEID(error_info_tag_t)); |
| return x; |
| } |
| } |
| |
| #endif |