514 lines
15 KiB
Plaintext
514 lines
15 KiB
Plaintext
//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_618474C2DE1511DEB74A388C56D89593
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#define UUID_618474C2DE1511DEB74A388C56D89593
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#if (__GNUC__*100+__GNUC_MINOR__>301) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
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#pragma GCC system_header
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#endif
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#if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
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#pragma warning(push,1)
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#endif
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#include <boost/config.hpp>
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#ifdef BOOST_NO_EXCEPTIONS
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#error This header requires exception handling to be enabled.
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#endif
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#include <boost/exception/exception.hpp>
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#include <boost/exception/info.hpp>
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#include <boost/exception/diagnostic_information.hpp>
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#include <boost/exception/detail/type_info.hpp>
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#include <boost/exception/detail/clone_current_exception.hpp>
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#ifndef BOOST_NO_RTTI
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#include <boost/core/demangle.hpp>
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#endif
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#include <boost/shared_ptr.hpp>
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#include <stdexcept>
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#include <new>
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#include <ios>
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#include <stdlib.h>
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namespace
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boost
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{
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class exception_ptr;
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BOOST_NORETURN void rethrow_exception( exception_ptr const & );
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exception_ptr current_exception();
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class
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exception_ptr
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{
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typedef boost::shared_ptr<exception_detail::clone_base const> impl;
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impl ptr_;
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friend void rethrow_exception( exception_ptr const & );
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typedef exception_detail::clone_base const * (impl::*unspecified_bool_type)() const;
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public:
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exception_ptr()
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{
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}
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explicit
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exception_ptr( impl const & ptr ):
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ptr_(ptr)
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{
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}
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bool
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operator==( exception_ptr const & other ) const
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{
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return ptr_==other.ptr_;
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}
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bool
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operator!=( exception_ptr const & other ) const
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{
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return ptr_!=other.ptr_;
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}
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operator unspecified_bool_type() const
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{
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return ptr_?&impl::get:0;
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}
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};
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template <class T>
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inline
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exception_ptr
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copy_exception( T const & e )
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{
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try
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{
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throw enable_current_exception(e);
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}
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catch(
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... )
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{
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return current_exception();
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}
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}
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#ifndef BOOST_NO_RTTI
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typedef error_info<struct tag_original_exception_type,std::type_info const *> original_exception_type;
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inline
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std::string
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to_string( original_exception_type const & x )
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{
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return core::demangle(x.value()->name());
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}
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#endif
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namespace
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exception_detail
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{
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struct
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bad_alloc_:
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boost::exception,
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std::bad_alloc
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{
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~bad_alloc_() throw() { }
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};
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struct
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bad_exception_:
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boost::exception,
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std::bad_exception
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{
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~bad_exception_() throw() { }
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};
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template <class Exception>
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exception_ptr
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get_static_exception_object()
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{
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Exception ba;
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exception_detail::clone_impl<Exception> c(ba);
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#ifndef BOOST_EXCEPTION_DISABLE
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c <<
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throw_function(BOOST_CURRENT_FUNCTION) <<
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throw_file(__FILE__) <<
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throw_line(__LINE__);
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#endif
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static exception_ptr ep(shared_ptr<exception_detail::clone_base const>(new exception_detail::clone_impl<Exception>(c)));
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return ep;
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}
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template <class Exception>
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struct
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exception_ptr_static_exception_object
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{
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static exception_ptr const e;
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};
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template <class Exception>
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exception_ptr const
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exception_ptr_static_exception_object<Exception>::
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e = get_static_exception_object<Exception>();
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}
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#if defined(__GNUC__)
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# if (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
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# pragma GCC visibility push (default)
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# endif
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#endif
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class
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unknown_exception:
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public boost::exception,
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public std::exception
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{
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public:
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unknown_exception()
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{
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}
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explicit
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unknown_exception( std::exception const & e )
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{
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add_original_type(e);
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}
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explicit
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unknown_exception( boost::exception const & e ):
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boost::exception(e)
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{
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add_original_type(e);
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}
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~unknown_exception() throw()
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{
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}
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private:
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template <class E>
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void
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add_original_type( E const & e )
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{
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#ifndef BOOST_NO_RTTI
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(*this) << original_exception_type(&typeid(e));
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#endif
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}
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};
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#if defined(__GNUC__)
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# if (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
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# pragma GCC visibility pop
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# endif
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#endif
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namespace
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exception_detail
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{
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template <class T>
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class
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current_exception_std_exception_wrapper:
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public T,
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public boost::exception
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{
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public:
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explicit
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current_exception_std_exception_wrapper( T const & e1 ):
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T(e1)
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{
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add_original_type(e1);
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}
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current_exception_std_exception_wrapper( T const & e1, boost::exception const & e2 ):
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T(e1),
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boost::exception(e2)
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{
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add_original_type(e1);
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}
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~current_exception_std_exception_wrapper() throw()
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{
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}
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private:
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template <class E>
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void
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add_original_type( E const & e )
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{
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#ifndef BOOST_NO_RTTI
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(*this) << original_exception_type(&typeid(e));
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#endif
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}
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};
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#ifdef BOOST_NO_RTTI
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template <class T>
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boost::exception const *
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get_boost_exception( T const * )
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{
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try
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{
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throw;
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}
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catch(
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boost::exception & x )
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{
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return &x;
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}
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catch(...)
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{
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return 0;
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}
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}
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#else
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template <class T>
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boost::exception const *
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get_boost_exception( T const * x )
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{
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return dynamic_cast<boost::exception const *>(x);
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}
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#endif
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template <class T>
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inline
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exception_ptr
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current_exception_std_exception( T const & e1 )
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{
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if( boost::exception const * e2 = get_boost_exception(&e1) )
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return boost::copy_exception(current_exception_std_exception_wrapper<T>(e1,*e2));
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else
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return boost::copy_exception(current_exception_std_exception_wrapper<T>(e1));
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}
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inline
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exception_ptr
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current_exception_unknown_exception()
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{
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return boost::copy_exception(unknown_exception());
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}
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inline
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exception_ptr
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current_exception_unknown_boost_exception( boost::exception const & e )
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{
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return boost::copy_exception(unknown_exception(e));
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}
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inline
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exception_ptr
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current_exception_unknown_std_exception( std::exception const & e )
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{
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if( boost::exception const * be = get_boost_exception(&e) )
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return current_exception_unknown_boost_exception(*be);
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else
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return boost::copy_exception(unknown_exception(e));
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}
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inline
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exception_ptr
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current_exception_impl()
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{
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exception_detail::clone_base const * e=0;
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switch(
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exception_detail::clone_current_exception(e) )
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{
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case exception_detail::clone_current_exception_result::
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success:
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{
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BOOST_ASSERT(e!=0);
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return exception_ptr(shared_ptr<exception_detail::clone_base const>(e));
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}
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case exception_detail::clone_current_exception_result::
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bad_alloc:
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{
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BOOST_ASSERT(!e);
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return exception_detail::exception_ptr_static_exception_object<bad_alloc_>::e;
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}
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case exception_detail::clone_current_exception_result::
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bad_exception:
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{
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BOOST_ASSERT(!e);
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return exception_detail::exception_ptr_static_exception_object<bad_exception_>::e;
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}
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default:
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BOOST_ASSERT(0);
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case exception_detail::clone_current_exception_result::
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not_supported:
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{
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BOOST_ASSERT(!e);
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try
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{
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throw;
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}
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catch(
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exception_detail::clone_base & e )
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{
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return exception_ptr(shared_ptr<exception_detail::clone_base const>(e.clone()));
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}
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catch(
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std::domain_error & e )
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{
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return exception_detail::current_exception_std_exception(e);
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}
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catch(
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std::invalid_argument & e )
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{
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return exception_detail::current_exception_std_exception(e);
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}
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catch(
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std::length_error & e )
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{
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return exception_detail::current_exception_std_exception(e);
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}
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catch(
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std::out_of_range & e )
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{
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return exception_detail::current_exception_std_exception(e);
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}
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catch(
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std::logic_error & e )
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{
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return exception_detail::current_exception_std_exception(e);
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}
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catch(
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std::range_error & e )
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{
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return exception_detail::current_exception_std_exception(e);
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}
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catch(
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std::overflow_error & e )
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{
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return exception_detail::current_exception_std_exception(e);
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}
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catch(
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std::underflow_error & e )
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{
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return exception_detail::current_exception_std_exception(e);
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}
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catch(
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std::ios_base::failure & e )
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{
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return exception_detail::current_exception_std_exception(e);
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}
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catch(
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std::runtime_error & e )
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{
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return exception_detail::current_exception_std_exception(e);
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}
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catch(
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std::bad_alloc & e )
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{
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return exception_detail::current_exception_std_exception(e);
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}
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#ifndef BOOST_NO_TYPEID
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catch(
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std::bad_cast & e )
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{
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return exception_detail::current_exception_std_exception(e);
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}
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catch(
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std::bad_typeid & e )
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{
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return exception_detail::current_exception_std_exception(e);
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}
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#endif
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catch(
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std::bad_exception & e )
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{
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return exception_detail::current_exception_std_exception(e);
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}
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catch(
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std::exception & e )
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{
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return exception_detail::current_exception_unknown_std_exception(e);
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}
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catch(
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boost::exception & e )
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{
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return exception_detail::current_exception_unknown_boost_exception(e);
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}
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catch(
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... )
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{
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return exception_detail::current_exception_unknown_exception();
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}
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}
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}
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}
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}
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inline
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exception_ptr
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current_exception()
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{
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exception_ptr ret;
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try
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{
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ret=exception_detail::current_exception_impl();
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}
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catch(
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std::bad_alloc & )
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{
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ret=exception_detail::exception_ptr_static_exception_object<exception_detail::bad_alloc_>::e;
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}
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catch(
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... )
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{
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ret=exception_detail::exception_ptr_static_exception_object<exception_detail::bad_exception_>::e;
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}
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BOOST_ASSERT(ret);
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return ret;
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}
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BOOST_NORETURN
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inline
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void
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rethrow_exception( exception_ptr const & p )
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{
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BOOST_ASSERT(p);
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p.ptr_->rethrow();
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BOOST_ASSERT(0);
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#if defined(UNDER_CE)
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// some CE platforms don't define ::abort()
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exit(-1);
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#else
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abort();
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#endif
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}
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inline
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std::string
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diagnostic_information( exception_ptr const & p, bool verbose=true )
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{
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if( p )
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try
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{
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rethrow_exception(p);
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}
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catch(
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... )
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{
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return current_exception_diagnostic_information(verbose);
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}
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return "<empty>";
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}
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inline
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std::string
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to_string( exception_ptr const & p )
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{
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std::string s='\n'+diagnostic_information(p);
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std::string padding(" ");
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std::string r;
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bool f=false;
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for( std::string::const_iterator i=s.begin(),e=s.end(); i!=e; ++i )
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{
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if( f )
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r+=padding;
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char c=*i;
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r+=c;
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f=(c=='\n');
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}
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return r;
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}
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}
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#if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
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#pragma warning(pop)
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#endif
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#endif
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