570 lines
14 KiB
C++
Executable File
570 lines
14 KiB
C++
Executable File
//Copyright (c) 2006-2009 Emil Dotchevski and Reverge Studios, Inc.
|
|
|
|
//Distributed under the Boost Software License, Version 1.0. (See accompanying
|
|
//file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
|
|
|
|
#ifndef BOOST_EXCEPTION_274DA366004E11DCB1DDFE2E56D89593
|
|
#define BOOST_EXCEPTION_274DA366004E11DCB1DDFE2E56D89593
|
|
|
|
#include <boost/assert/source_location.hpp>
|
|
#include <boost/config.hpp>
|
|
#include <exception>
|
|
|
|
#ifdef BOOST_EXCEPTION_MINI_BOOST
|
|
#include <memory>
|
|
namespace boost { namespace exception_detail { using std::shared_ptr; } }
|
|
#else
|
|
namespace boost { template <class T> class shared_ptr; }
|
|
namespace boost { namespace exception_detail { using boost::shared_ptr; } }
|
|
#endif
|
|
|
|
#if !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
|
|
#if __GNUC__*100+__GNUC_MINOR__>301
|
|
#pragma GCC system_header
|
|
#endif
|
|
#ifdef __clang__
|
|
#pragma clang system_header
|
|
#endif
|
|
#ifdef _MSC_VER
|
|
#pragma warning(push,1)
|
|
#pragma warning(disable: 4265)
|
|
#endif
|
|
#endif
|
|
|
|
namespace
|
|
boost
|
|
{
|
|
namespace
|
|
exception_detail
|
|
{
|
|
template <class T>
|
|
class
|
|
refcount_ptr
|
|
{
|
|
public:
|
|
|
|
refcount_ptr():
|
|
px_(0)
|
|
{
|
|
}
|
|
|
|
~refcount_ptr()
|
|
{
|
|
release();
|
|
}
|
|
|
|
refcount_ptr( refcount_ptr const & x ):
|
|
px_(x.px_)
|
|
{
|
|
add_ref();
|
|
}
|
|
|
|
refcount_ptr &
|
|
operator=( refcount_ptr const & x )
|
|
{
|
|
adopt(x.px_);
|
|
return *this;
|
|
}
|
|
|
|
void
|
|
adopt( T * px )
|
|
{
|
|
release();
|
|
px_=px;
|
|
add_ref();
|
|
}
|
|
|
|
T *
|
|
get() const
|
|
{
|
|
return px_;
|
|
}
|
|
|
|
private:
|
|
|
|
T * px_;
|
|
|
|
void
|
|
add_ref()
|
|
{
|
|
if( px_ )
|
|
px_->add_ref();
|
|
}
|
|
|
|
void
|
|
release()
|
|
{
|
|
if( px_ && px_->release() )
|
|
px_=0;
|
|
}
|
|
};
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
|
|
template <class Tag,class T>
|
|
class error_info;
|
|
|
|
typedef error_info<struct throw_function_,char const *> throw_function;
|
|
typedef error_info<struct throw_file_,char const *> throw_file;
|
|
typedef error_info<struct throw_line_,int> throw_line;
|
|
typedef error_info<struct throw_column_,int> throw_column;
|
|
|
|
template <>
|
|
class
|
|
error_info<throw_function_,char const *>
|
|
{
|
|
public:
|
|
typedef char const * value_type;
|
|
value_type v_;
|
|
explicit
|
|
error_info( value_type v ):
|
|
v_(v)
|
|
{
|
|
}
|
|
};
|
|
|
|
template <>
|
|
class
|
|
error_info<throw_file_,char const *>
|
|
{
|
|
public:
|
|
typedef char const * value_type;
|
|
value_type v_;
|
|
explicit
|
|
error_info( value_type v ):
|
|
v_(v)
|
|
{
|
|
}
|
|
};
|
|
|
|
template <>
|
|
class
|
|
error_info<throw_line_,int>
|
|
{
|
|
public:
|
|
typedef int value_type;
|
|
value_type v_;
|
|
explicit
|
|
error_info( value_type v ):
|
|
v_(v)
|
|
{
|
|
}
|
|
};
|
|
|
|
template <>
|
|
class
|
|
error_info<throw_column_,int>
|
|
{
|
|
public:
|
|
typedef int value_type;
|
|
value_type v_;
|
|
explicit
|
|
error_info( value_type v ):
|
|
v_(v)
|
|
{
|
|
}
|
|
};
|
|
|
|
class
|
|
BOOST_SYMBOL_VISIBLE
|
|
exception;
|
|
|
|
namespace
|
|
exception_detail
|
|
{
|
|
class error_info_base;
|
|
struct type_info_;
|
|
|
|
struct
|
|
error_info_container
|
|
{
|
|
virtual char const * diagnostic_information( char const * ) const = 0;
|
|
virtual shared_ptr<error_info_base> get( type_info_ const & ) const = 0;
|
|
virtual void set( shared_ptr<error_info_base> const &, type_info_ const & ) = 0;
|
|
virtual void add_ref() const = 0;
|
|
virtual bool release() const = 0;
|
|
virtual refcount_ptr<exception_detail::error_info_container> clone() const = 0;
|
|
|
|
protected:
|
|
|
|
~error_info_container() BOOST_NOEXCEPT_OR_NOTHROW
|
|
{
|
|
}
|
|
};
|
|
|
|
template <class>
|
|
struct get_info;
|
|
|
|
template <>
|
|
struct get_info<throw_function>;
|
|
|
|
template <>
|
|
struct get_info<throw_file>;
|
|
|
|
template <>
|
|
struct get_info<throw_line>;
|
|
|
|
template <>
|
|
struct get_info<throw_column>;
|
|
|
|
template <class>
|
|
struct set_info_rv;
|
|
|
|
template <>
|
|
struct set_info_rv<throw_function>;
|
|
|
|
template <>
|
|
struct set_info_rv<throw_file>;
|
|
|
|
template <>
|
|
struct set_info_rv<throw_line>;
|
|
|
|
template <>
|
|
struct set_info_rv<throw_column>;
|
|
|
|
char const * get_diagnostic_information( exception const &, char const * );
|
|
|
|
void copy_boost_exception( exception *, exception const * );
|
|
|
|
template <class E,class Tag,class T>
|
|
E const & set_info( E const &, error_info<Tag,T> const & );
|
|
|
|
template <class E>
|
|
E const & set_info( E const &, throw_function const & );
|
|
|
|
template <class E>
|
|
E const & set_info( E const &, throw_file const & );
|
|
|
|
template <class E>
|
|
E const & set_info( E const &, throw_line const & );
|
|
|
|
template <class E>
|
|
E const & set_info( E const &, throw_column const & );
|
|
|
|
boost::source_location get_exception_throw_location( exception const & );
|
|
}
|
|
|
|
class
|
|
BOOST_SYMBOL_VISIBLE
|
|
exception
|
|
{
|
|
//<N3757>
|
|
public:
|
|
template <class Tag> void set( typename Tag::type const & );
|
|
template <class Tag> typename Tag::type const * get() const;
|
|
//</N3757>
|
|
|
|
protected:
|
|
|
|
exception():
|
|
throw_function_(0),
|
|
throw_file_(0),
|
|
throw_line_(-1),
|
|
throw_column_(-1)
|
|
{
|
|
}
|
|
|
|
#ifdef __HP_aCC
|
|
//On HP aCC, this protected copy constructor prevents throwing boost::exception.
|
|
//On all other platforms, the same effect is achieved by the pure virtual destructor.
|
|
exception( exception const & x ) BOOST_NOEXCEPT_OR_NOTHROW:
|
|
data_(x.data_),
|
|
throw_function_(x.throw_function_),
|
|
throw_file_(x.throw_file_),
|
|
throw_line_(x.throw_line_),
|
|
throw_column_(x.throw_column_)
|
|
{
|
|
}
|
|
#endif
|
|
|
|
virtual ~exception() BOOST_NOEXCEPT_OR_NOTHROW
|
|
#ifndef __HP_aCC
|
|
= 0 //Workaround for HP aCC, =0 incorrectly leads to link errors.
|
|
#endif
|
|
;
|
|
|
|
#if (defined(__MWERKS__) && __MWERKS__<=0x3207) || (defined(_MSC_VER) && _MSC_VER<=1310)
|
|
public:
|
|
#else
|
|
private:
|
|
|
|
template <class E>
|
|
friend E const & exception_detail::set_info( E const &, throw_function const & );
|
|
|
|
template <class E>
|
|
friend E const & exception_detail::set_info( E const &, throw_file const & );
|
|
|
|
template <class E>
|
|
friend E const & exception_detail::set_info( E const &, throw_line const & );
|
|
|
|
template <class E>
|
|
friend E const & exception_detail::set_info( E const &, throw_column const & );
|
|
|
|
template <class E,class Tag,class T>
|
|
friend E const & exception_detail::set_info( E const &, error_info<Tag,T> const & );
|
|
|
|
friend char const * exception_detail::get_diagnostic_information( exception const &, char const * );
|
|
|
|
friend boost::source_location exception_detail::get_exception_throw_location( exception const & );
|
|
|
|
template <class>
|
|
friend struct exception_detail::get_info;
|
|
friend struct exception_detail::get_info<throw_function>;
|
|
friend struct exception_detail::get_info<throw_file>;
|
|
friend struct exception_detail::get_info<throw_line>;
|
|
friend struct exception_detail::get_info<throw_column>;
|
|
template <class>
|
|
friend struct exception_detail::set_info_rv;
|
|
friend struct exception_detail::set_info_rv<throw_function>;
|
|
friend struct exception_detail::set_info_rv<throw_file>;
|
|
friend struct exception_detail::set_info_rv<throw_line>;
|
|
friend struct exception_detail::set_info_rv<throw_column>;
|
|
friend void exception_detail::copy_boost_exception( exception *, exception const * );
|
|
#endif
|
|
mutable exception_detail::refcount_ptr<exception_detail::error_info_container> data_;
|
|
mutable char const * throw_function_;
|
|
mutable char const * throw_file_;
|
|
mutable int throw_line_;
|
|
mutable int throw_column_;
|
|
};
|
|
|
|
inline
|
|
exception::
|
|
~exception() BOOST_NOEXCEPT_OR_NOTHROW
|
|
{
|
|
}
|
|
|
|
namespace
|
|
exception_detail
|
|
{
|
|
template <class E>
|
|
E const &
|
|
set_info( E const & x, throw_function const & y )
|
|
{
|
|
x.throw_function_=y.v_;
|
|
return x;
|
|
}
|
|
|
|
template <class E>
|
|
E const &
|
|
set_info( E const & x, throw_file const & y )
|
|
{
|
|
x.throw_file_=y.v_;
|
|
return x;
|
|
}
|
|
|
|
template <class E>
|
|
E const &
|
|
set_info( E const & x, throw_line const & y )
|
|
{
|
|
x.throw_line_=y.v_;
|
|
return x;
|
|
}
|
|
|
|
template <class E>
|
|
E const &
|
|
set_info( E const & x, throw_column const & y )
|
|
{
|
|
x.throw_column_=y.v_;
|
|
return x;
|
|
}
|
|
|
|
#ifndef BOOST_NO_CXX11_RVALUE_REFERENCES
|
|
|
|
template <>
|
|
struct
|
|
set_info_rv<throw_column>
|
|
{
|
|
template <class E>
|
|
static
|
|
E const &
|
|
set( E const & x, throw_column && y )
|
|
{
|
|
x.throw_column_=y.v_;
|
|
return x;
|
|
}
|
|
};
|
|
|
|
#endif
|
|
|
|
inline boost::source_location get_exception_throw_location( exception const & x )
|
|
{
|
|
return boost::source_location(
|
|
x.throw_file_? x.throw_file_: "",
|
|
x.throw_line_ >= 0? x.throw_line_: 0,
|
|
x.throw_function_? x.throw_function_: "",
|
|
x.throw_column_ >= 0? x.throw_column_: 0
|
|
);
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
|
|
namespace
|
|
exception_detail
|
|
{
|
|
template <class T>
|
|
struct
|
|
BOOST_SYMBOL_VISIBLE
|
|
error_info_injector:
|
|
public T,
|
|
public exception
|
|
{
|
|
explicit
|
|
error_info_injector( T const & x ):
|
|
T(x)
|
|
{
|
|
}
|
|
|
|
~error_info_injector() BOOST_NOEXCEPT_OR_NOTHROW
|
|
{
|
|
}
|
|
};
|
|
|
|
struct large_size { char c[256]; };
|
|
large_size dispatch_boost_exception( exception const * );
|
|
|
|
struct small_size { };
|
|
small_size dispatch_boost_exception( void const * );
|
|
|
|
template <class,int>
|
|
struct enable_error_info_helper;
|
|
|
|
template <class T>
|
|
struct
|
|
enable_error_info_helper<T,sizeof(large_size)>
|
|
{
|
|
typedef T type;
|
|
};
|
|
|
|
template <class T>
|
|
struct
|
|
enable_error_info_helper<T,sizeof(small_size)>
|
|
{
|
|
typedef error_info_injector<T> type;
|
|
};
|
|
|
|
template <class T>
|
|
struct
|
|
enable_error_info_return_type
|
|
{
|
|
typedef typename enable_error_info_helper<T,sizeof(exception_detail::dispatch_boost_exception(static_cast<T *>(0)))>::type type;
|
|
};
|
|
}
|
|
|
|
template <class T>
|
|
inline
|
|
typename
|
|
exception_detail::enable_error_info_return_type<T>::type
|
|
enable_error_info( T const & x )
|
|
{
|
|
typedef typename exception_detail::enable_error_info_return_type<T>::type rt;
|
|
return rt(x);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////
|
|
#if defined(BOOST_NO_EXCEPTIONS)
|
|
BOOST_NORETURN void throw_exception(std::exception const & e); // user defined
|
|
#endif
|
|
|
|
namespace
|
|
exception_detail
|
|
{
|
|
class
|
|
BOOST_SYMBOL_VISIBLE
|
|
clone_base
|
|
{
|
|
public:
|
|
|
|
virtual clone_base const * clone() const = 0;
|
|
virtual void rethrow() const = 0;
|
|
|
|
virtual
|
|
~clone_base() BOOST_NOEXCEPT_OR_NOTHROW
|
|
{
|
|
}
|
|
};
|
|
|
|
inline
|
|
void
|
|
copy_boost_exception( exception * a, exception const * b )
|
|
{
|
|
refcount_ptr<error_info_container> data;
|
|
if( error_info_container * d=b->data_.get() )
|
|
data = d->clone();
|
|
a->throw_file_ = b->throw_file_;
|
|
a->throw_line_ = b->throw_line_;
|
|
a->throw_function_ = b->throw_function_;
|
|
a->throw_column_ = b->throw_column_;
|
|
a->data_ = data;
|
|
}
|
|
|
|
inline
|
|
void
|
|
copy_boost_exception( void *, void const * )
|
|
{
|
|
}
|
|
|
|
template <class T>
|
|
class
|
|
BOOST_SYMBOL_VISIBLE
|
|
clone_impl:
|
|
public T,
|
|
public virtual clone_base
|
|
{
|
|
struct clone_tag { };
|
|
clone_impl( clone_impl const & x, clone_tag ):
|
|
T(x)
|
|
{
|
|
copy_boost_exception(this,&x);
|
|
}
|
|
|
|
public:
|
|
|
|
explicit
|
|
clone_impl( T const & x ):
|
|
T(x)
|
|
{
|
|
copy_boost_exception(this,&x);
|
|
}
|
|
|
|
~clone_impl() BOOST_NOEXCEPT_OR_NOTHROW
|
|
{
|
|
}
|
|
|
|
private:
|
|
|
|
clone_base const *
|
|
clone() const
|
|
{
|
|
return new clone_impl(*this,clone_tag());
|
|
}
|
|
|
|
void
|
|
rethrow() const
|
|
{
|
|
#if defined(BOOST_NO_EXCEPTIONS)
|
|
boost::throw_exception(*this);
|
|
#else
|
|
throw*this;
|
|
#endif
|
|
}
|
|
};
|
|
}
|
|
|
|
template <class T>
|
|
inline
|
|
exception_detail::clone_impl<T>
|
|
enable_current_exception( T const & x )
|
|
{
|
|
return exception_detail::clone_impl<T>(x);
|
|
}
|
|
}
|
|
|
|
#if defined(_MSC_VER) && !defined(BOOST_EXCEPTION_ENABLE_WARNINGS)
|
|
#pragma warning(pop)
|
|
#endif
|
|
|
|
#endif // #ifndef BOOST_EXCEPTION_274DA366004E11DCB1DDFE2E56D89593
|