1 //Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc.
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3 //Distributed under the Boost Software License, Version 1.0. (See accompanying
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4 //file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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6 #ifndef UUID_274DA366004E11DCB1DDFE2E56D89593
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7 #define UUID_274DA366004E11DCB1DDFE2E56D89593
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8 #if defined(__GNUC__) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
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9 #pragma GCC system_header
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11 #if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
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12 #pragma warning(push,1)
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37 refcount_ptr( refcount_ptr const & x ):
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44 operator=( refcount_ptr const & x )
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84 ////////////////////////////////////////////////////////////////////////
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86 template <class Tag,class T>
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89 typedef error_info<struct throw_function_,char const *> throw_function;
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90 typedef error_info<struct throw_file_,char const *> throw_file;
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91 typedef error_info<struct throw_line_,int> throw_line;
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95 error_info<throw_function_,char const *>
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98 typedef char const * value_type;
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101 error_info( value_type v ):
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109 error_info<throw_file_,char const *>
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112 typedef char const * value_type;
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115 error_info( value_type v ):
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123 error_info<throw_line_,int>
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126 typedef int value_type;
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129 error_info( value_type v ):
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135 template <class E,class Tag,class T>
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136 E const & operator<<( E const &, error_info<Tag,T> const & );
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139 E const & operator<<( E const &, throw_function const & );
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142 E const & operator<<( E const &, throw_file const & );
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145 E const & operator<<( E const &, throw_line const & );
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155 class error_info_base;
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159 error_info_container
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161 virtual char const * diagnostic_information( char const * ) const = 0;
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162 virtual shared_ptr<error_info_base> get( type_info_ const & ) const = 0;
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163 virtual void set( shared_ptr<error_info_base> const &, type_info_ const & ) = 0;
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164 virtual void add_ref() const = 0;
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165 virtual void release() const = 0;
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169 ~error_info_container() throw()
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178 struct get_info<throw_function>;
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181 struct get_info<throw_file>;
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184 struct get_info<throw_line>;
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186 char const * get_diagnostic_information( exception const &, char const * );
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195 throw_function_(0),
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202 //On HP aCC, this protected copy constructor prevents throwing boost::exception.
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203 //On all other platforms, the same effect is achieved by the pure virtual destructor.
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204 exception( exception const & x ) throw():
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206 throw_function_(x.throw_function_),
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207 throw_file_(x.throw_file_),
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208 throw_line_(x.throw_line_)
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213 virtual ~exception() throw()
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215 = 0 //Workaround for HP aCC, =0 incorrectly leads to link errors.
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219 #if defined(__MWERKS__) && __MWERKS__<=0x3207
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225 friend E const & operator<<( E const &, throw_function const & );
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228 friend E const & operator<<( E const &, throw_file const & );
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231 friend E const & operator<<( E const &, throw_line const & );
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233 friend char const * exception_detail::get_diagnostic_information( exception const &, char const * );
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235 template <class E,class Tag,class T>
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236 friend E const & operator<<( E const &, error_info<Tag,T> const & );
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239 friend struct exception_detail::get_info;
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240 friend struct exception_detail::get_info<throw_function>;
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241 friend struct exception_detail::get_info<throw_file>;
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242 friend struct exception_detail::get_info<throw_line>;
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244 mutable exception_detail::refcount_ptr<exception_detail::error_info_container> data_;
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245 mutable char const * throw_function_;
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246 mutable char const * throw_file_;
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247 mutable int throw_line_;
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252 ~exception() throw()
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258 operator<<( E const & x, throw_function const & y )
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260 x.throw_function_=y.v_;
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266 operator<<( E const & x, throw_file const & y )
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268 x.throw_file_=y.v_;
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274 operator<<( E const & x, throw_line const & y )
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276 x.throw_line_=y.v_;
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280 ////////////////////////////////////////////////////////////////////////
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287 error_info_injector:
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292 error_info_injector( T const & x ):
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297 ~error_info_injector() throw()
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302 struct large_size { char c[256]; };
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303 large_size dispatch( exception * );
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305 struct small_size { };
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306 small_size dispatch( void * );
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308 template <class,int>
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309 struct enable_error_info_helper;
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313 enable_error_info_helper<T,sizeof(large_size)>
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320 enable_error_info_helper<T,sizeof(small_size)>
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322 typedef error_info_injector<T> type;
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327 enable_error_info_return_type
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329 typedef typename enable_error_info_helper<T,sizeof(exception_detail::dispatch((T*)0))>::type type;
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336 exception_detail::enable_error_info_return_type<T>::type
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337 enable_error_info( T const & x )
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339 typedef typename exception_detail::enable_error_info_return_type<T>::type rt;
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343 ////////////////////////////////////////////////////////////////////////
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353 virtual clone_base const * clone() const = 0;
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354 virtual void rethrow() const = 0;
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357 ~clone_base() throw()
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364 copy_boost_exception( exception * a, exception const * b )
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371 copy_boost_exception( void *, void const * )
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384 clone_impl( T const & x ):
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387 copy_boost_exception(this,&x);
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390 ~clone_impl() throw()
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399 return new clone_impl(*this);
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412 exception_detail::clone_impl<T>
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413 enable_current_exception( T const & x )
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415 return exception_detail::clone_impl<T>(x);
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419 #if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
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420 #pragma warning(pop)
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