1 //Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc.
3 //Distributed under the Boost Software License, Version 1.0. (See accompanying
4 //file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6 #ifndef UUID_274DA366004E11DCB1DDFE2E56D89593
7 #define UUID_274DA366004E11DCB1DDFE2E56D89593
8 #if defined(__GNUC__) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
9 #pragma GCC system_header
11 #if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
12 #pragma warning(push,1)
37 refcount_ptr( refcount_ptr const & x ):
44 operator=( refcount_ptr const & x )
78 if( px_ && px_->release() )
84 ////////////////////////////////////////////////////////////////////////
86 template <class Tag,class T>
89 typedef error_info<struct throw_function_,char const *> throw_function;
90 typedef error_info<struct throw_file_,char const *> throw_file;
91 typedef error_info<struct throw_line_,int> throw_line;
95 error_info<throw_function_,char const *>
98 typedef char const * value_type;
101 error_info( value_type v ):
109 error_info<throw_file_,char const *>
112 typedef char const * value_type;
115 error_info( value_type v ):
123 error_info<throw_line_,int>
126 typedef int value_type;
129 error_info( value_type v ):
135 #if defined(__GNUC__)
136 # if (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
137 # pragma GCC visibility push (default)
141 #if defined(__GNUC__)
142 # if (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
143 # pragma GCC visibility pop
153 class error_info_base;
159 virtual char const * diagnostic_information( char const * ) const = 0;
160 virtual shared_ptr<error_info_base> get( type_info_ const & ) const = 0;
161 virtual void set( shared_ptr<error_info_base> const &, type_info_ const & ) = 0;
162 virtual void add_ref() const = 0;
163 virtual bool release() const = 0;
164 virtual refcount_ptr<exception_detail::error_info_container> clone() const = 0;
168 ~error_info_container() throw()
177 struct get_info<throw_function>;
180 struct get_info<throw_file>;
183 struct get_info<throw_line>;
185 char const * get_diagnostic_information( exception const &, char const * );
187 void copy_boost_exception( exception *, exception const * );
189 template <class E,class Tag,class T>
190 E const & set_info( E const &, error_info<Tag,T> const & );
193 E const & set_info( E const &, throw_function const & );
196 E const & set_info( E const &, throw_file const & );
199 E const & set_info( E const &, throw_line const & );
202 #if defined(__GNUC__)
203 # if (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
204 # pragma GCC visibility push (default)
220 //On HP aCC, this protected copy constructor prevents throwing boost::exception.
221 //On all other platforms, the same effect is achieved by the pure virtual destructor.
222 exception( exception const & x ) throw():
224 throw_function_(x.throw_function_),
225 throw_file_(x.throw_file_),
226 throw_line_(x.throw_line_)
231 virtual ~exception() throw()
233 = 0 //Workaround for HP aCC, =0 incorrectly leads to link errors.
237 #if (defined(__MWERKS__) && __MWERKS__<=0x3207) || (defined(_MSC_VER) && _MSC_VER<=1310)
243 friend E const & exception_detail::set_info( E const &, throw_function const & );
246 friend E const & exception_detail::set_info( E const &, throw_file const & );
249 friend E const & exception_detail::set_info( E const &, throw_line const & );
251 template <class E,class Tag,class T>
252 friend E const & exception_detail::set_info( E const &, error_info<Tag,T> const & );
254 friend char const * exception_detail::get_diagnostic_information( exception const &, char const * );
257 friend struct exception_detail::get_info;
258 friend struct exception_detail::get_info<throw_function>;
259 friend struct exception_detail::get_info<throw_file>;
260 friend struct exception_detail::get_info<throw_line>;
261 friend void exception_detail::copy_boost_exception( exception *, exception const * );
263 mutable exception_detail::refcount_ptr<exception_detail::error_info_container> data_;
264 mutable char const * throw_function_;
265 mutable char const * throw_file_;
266 mutable int throw_line_;
268 #if defined(__GNUC__)
269 # if (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
270 # pragma GCC visibility pop
285 set_info( E const & x, throw_function const & y )
287 x.throw_function_=y.v_;
293 set_info( E const & x, throw_file const & y )
301 set_info( E const & x, throw_line const & y )
308 ////////////////////////////////////////////////////////////////////////
320 error_info_injector( T const & x ):
325 ~error_info_injector() throw()
330 struct large_size { char c[256]; };
331 large_size dispatch_boost_exception( exception const * );
333 struct small_size { };
334 small_size dispatch_boost_exception( void const * );
337 struct enable_error_info_helper;
341 enable_error_info_helper<T,sizeof(large_size)>
348 enable_error_info_helper<T,sizeof(small_size)>
350 typedef error_info_injector<T> type;
355 enable_error_info_return_type
357 typedef typename enable_error_info_helper<T,sizeof(exception_detail::dispatch_boost_exception(static_cast<T *>(0)))>::type type;
364 exception_detail::enable_error_info_return_type<T>::type
365 enable_error_info( T const & x )
367 typedef typename exception_detail::enable_error_info_return_type<T>::type rt;
371 ////////////////////////////////////////////////////////////////////////
381 virtual clone_base const * clone() const = 0;
382 virtual void rethrow() const = 0;
385 ~clone_base() throw()
392 copy_boost_exception( exception * a, exception const * b )
394 refcount_ptr<error_info_container> data;
395 if( error_info_container * d=b->data_.get() )
397 a->throw_file_ = b->throw_file_;
398 a->throw_line_ = b->throw_line_;
399 a->throw_function_ = b->throw_function_;
405 copy_boost_exception( void *, void const * )
418 clone_impl( T const & x ):
421 copy_boost_exception(this,&x);
424 ~clone_impl() throw()
433 return new clone_impl(*this);
446 exception_detail::clone_impl<T>
447 enable_current_exception( T const & x )
449 return exception_detail::clone_impl<T>(x);
453 #if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)