69 lines
2.3 KiB
C++
69 lines
2.3 KiB
C++
#ifndef _FC_EXCEPTION_HPP_
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#define _FC_EXCEPTION_HPP_
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#include <fc/shared_ptr.hpp>
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#include <fc/string.hpp>
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// TODO: Remove boost exception dependency here!!
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// TODO: Remove boost format dependency here!!
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#include <boost/format.hpp>
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#include <boost/exception/all.hpp>
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// provided for easy integration with boost.
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namespace boost { class exception_ptr; }
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namespace fc {
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/**
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* Simply including boost/exception_ptr.hpp is enough to significantly
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* lengthen compile times. This header defines an 'opaque' exception
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* type that provides the most 'general' exception handling needs without
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* requiring a significant amount of code to be included.
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*/
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class exception_ptr {
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public:
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exception_ptr();
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exception_ptr( const boost::exception_ptr& c );
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exception_ptr( boost::exception_ptr&& c );
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exception_ptr( const exception_ptr& c );
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exception_ptr( exception_ptr&& c );
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~exception_ptr();
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exception_ptr& operator=(const boost::exception_ptr& c);
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exception_ptr& operator=(boost::exception_ptr&& c);
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exception_ptr& operator=(const exception_ptr& c);
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exception_ptr& operator=(exception_ptr&& c);
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fc::string diagnostic_information()const;
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operator bool()const;
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operator const boost::exception_ptr& ()const;
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operator boost::exception_ptr& ();
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private:
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char my[sizeof(void*)*2];
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};
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exception_ptr current_exception();
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template<typename T>
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inline exception_ptr copy_exception( T&& e ) {
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try { throw e; } catch (...) { return current_exception(); }
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return exception_ptr();
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}
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void rethrow_exception( const exception_ptr& e );
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typedef boost::error_info<struct err_msg_,std::string> err_msg;
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struct exception : public virtual boost::exception, public virtual std::exception {
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const char* what()const throw() { return "exception"; }
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virtual void rethrow()const { BOOST_THROW_EXCEPTION(*this); }
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const std::string& message()const { return *boost::get_error_info<fc::err_msg>(*this); }
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};
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} // namespace fc
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#define FC_THROW(X,...) throw X
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#define FC_THROW_MSG( MSG, ... ) \
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do { \
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BOOST_THROW_EXCEPTION( fc::exception() << fc::err_msg( (boost::format( MSG ) __VA_ARGS__ ).str() ) );\
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} while(0)
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#endif // _FC_EXCEPTION_HPP_
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