ceph/src/boost/libs/python/include/boost/python/detail/translate_exception.hpp

   1 // Copyright David Abrahams 2002.
   2 // Distributed under the Boost Software License, Version 1.0. (See
   3 // accompanying file LICENSE_1_0.txt or copy at
   4 // http://www.boost.org/LICENSE_1_0.txt)
   5 #ifndef TRANSLATE_EXCEPTION_TDS20091020_HPP
   6 # define TRANSLATE_EXCEPTION_TDS20091020_HPP
   7
   8 # include <boost/python/detail/exception_handler.hpp>
   9
  10 # include <boost/call_traits.hpp>
  11 # include <boost/type_traits/add_const.hpp>
  12 # include <boost/type_traits/add_reference.hpp>
  13 # include <boost/type_traits/remove_reference.hpp>
  14
  15 # include <boost/function/function0.hpp>
  16
  17 namespace boost { namespace python { namespace detail {
  18
  19 // A ternary function object used to translate C++ exceptions of type
  20 // ExceptionType into Python exceptions by invoking an object of type
  21 // Translate. Typically the translate function will be curried with
  22 // boost::bind().
  23 template <class ExceptionType, class Translate>
  24 struct translate_exception
  25 {
  26 // workaround for broken gcc that ships with SuSE 9.0 and SuSE 9.1
  27 # if defined(__linux__) && defined(__GNUC__) \
  28     && BOOST_WORKAROUND(__GNUC__, == 3) \
  29     && BOOST_WORKAROUND(__GNUC_MINOR__, == 3) \
  30     && (BOOST_WORKAROUND(__GNUC_PATCHLEVEL__, == 1) \
  31         || BOOST_WORKAROUND(__GNUC_PATCHLEVEL__, == 3))
  32     typedef typename remove_reference<
  33         typename add_const<ExceptionType>::type
  34     >::type exception_non_ref;
  35 # else
  36     typedef typename add_reference<
  37         typename add_const<ExceptionType>::type
  38     >::type exception_cref;
  39 # endif
  40
  41     inline bool operator()(
  42         exception_handler const& handler
  43       , function0<void> const& f
  44       , typename call_traits<Translate>::param_type translate) const
  45     {
  46         try
  47         {
  48             return handler(f);
  49         }
  50 // workaround for broken gcc that ships with SuSE 9.0 and SuSE 9.1
  51 # if defined(__linux__) && defined(__GNUC__) \
  52     && BOOST_WORKAROUND(__GNUC__, == 3) \
  53     && BOOST_WORKAROUND(__GNUC_MINOR__, == 3) \
  54     && (BOOST_WORKAROUND(__GNUC_PATCHLEVEL__, == 1) \
  55         || BOOST_WORKAROUND(__GNUC_PATCHLEVEL__, == 3))
  56         catch(exception_non_ref& e)
  57 # else
  58         catch(exception_cref e)
  59 # endif
  60         {
  61             translate(e);
  62             return true;
  63         }
  64     }
  65 };
  66
  67 }}} // namespace boost::python::detail
  68
  69 #endif // TRANSLATE_EXCEPTION_DWA2002810_HPP