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