author | Ross Qin <ross.qin@nokia.com> |
Thu, 28 Oct 2010 11:18:50 +0800 | |
changeset 667 | a3b39a14147a |
parent 0 | 044383f39525 |
permissions | -rw-r--r-- |
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//Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc. |
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//Distributed under the Boost Software License, Version 1.0. (See accompanying |
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//file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
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#ifndef UUID_8D22C4CA9CC811DCAA9133D256D89593 |
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#define UUID_8D22C4CA9CC811DCAA9133D256D89593 |
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#include <boost/exception/exception.hpp> |
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#include <boost/exception/to_string_stub.hpp> |
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#include <boost/exception/detail/error_info_impl.hpp> |
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#include <boost/shared_ptr.hpp> |
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#include <map> |
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|
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namespace |
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boost |
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{ |
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template <class Tag,class T> |
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inline |
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typename enable_if<has_to_string<T>,std::string>::type |
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to_string( error_info<Tag,T> const & x ) |
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{ |
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return to_string(x.value()); |
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} |
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template <class Tag,class T> |
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inline |
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error_info<Tag,T>:: |
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error_info( value_type const & value ): |
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value_(value) |
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{ |
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} |
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template <class Tag,class T> |
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inline |
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error_info<Tag,T>:: |
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~error_info() throw() |
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{ |
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} |
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template <class Tag,class T> |
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inline |
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char const * |
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error_info<Tag,T>:: |
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tag_typeid_name() const |
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{ |
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return tag_type_name<Tag>(); |
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} |
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template <class Tag,class T> |
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inline |
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std::string |
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error_info<Tag,T>:: |
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value_as_string() const |
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{ |
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return to_string_stub(*this); |
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} |
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namespace |
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exception_detail |
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{ |
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class |
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error_info_container_impl: |
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public error_info_container |
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{ |
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public: |
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error_info_container_impl(): |
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count_(0) |
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{ |
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} |
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~error_info_container_impl() throw() |
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{ |
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} |
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void |
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set( shared_ptr<error_info_base const> const & x, type_info_ const & typeid_ ) |
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{ |
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BOOST_ASSERT(x); |
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info_[typeid_] = x; |
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diagnostic_info_str_.clear(); |
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} |
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shared_ptr<error_info_base const> |
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get( type_info_ const & ti ) const |
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{ |
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error_info_map::const_iterator i=info_.find(ti); |
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if( info_.end()!=i ) |
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{ |
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shared_ptr<error_info_base const> const & p = i->second; |
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#ifndef BOOST_NO_RTTI |
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BOOST_ASSERT( BOOST_EXCEPTION_DYNAMIC_TYPEID(*p)==ti ); |
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#endif |
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return p; |
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} |
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return shared_ptr<error_info_base const>(); |
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} |
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char const * |
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diagnostic_information() const |
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{ |
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if( diagnostic_info_str_.empty() ) |
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{ |
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std::ostringstream tmp; |
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for( error_info_map::const_iterator i=info_.begin(),end=info_.end(); i!=end; ++i ) |
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{ |
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shared_ptr<error_info_base const> const & x = i->second; |
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tmp << '[' << x->tag_typeid_name() << "] = " << x->value_as_string() << std::endl; |
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} |
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tmp.str().swap(diagnostic_info_str_); |
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} |
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return diagnostic_info_str_.c_str(); |
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} |
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115 |
|
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private: |
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|
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friend class boost::exception; |
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|
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typedef std::map< type_info_, shared_ptr<error_info_base const> > error_info_map; |
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error_info_map info_; |
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mutable std::string diagnostic_info_str_; |
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mutable int count_; |
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124 |
|
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void |
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add_ref() const |
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{ |
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++count_; |
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} |
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|
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131 |
void |
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release() const |
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{ |
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if( !--count_ ) |
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delete this; |
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} |
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}; |
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} |
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template <class E,class Tag,class T> |
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inline |
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E const & |
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operator<<( E const & x, error_info<Tag,T> const & v ) |
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{ |
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typedef error_info<Tag,T> error_info_tag_t; |
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shared_ptr<error_info_tag_t> p( new error_info_tag_t(v) ); |
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exception_detail::error_info_container * c; |
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if( !(c=x.data_.get()) ) |
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x.data_.adopt(c=new exception_detail::error_info_container_impl); |
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c->set(p,BOOST_EXCEPTION_STATIC_TYPEID(error_info_tag_t)); |
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return x; |
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} |
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} |
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#endif |