| // (C) Copyright David Abrahams 2000. |
| // 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) |
| // |
| // The author gratefully acknowleges the support of Dragon Systems, Inc., in |
| // producing this work. |
| |
| #ifndef ERRORS_DWA052500_H_ |
| # define ERRORS_DWA052500_H_ |
| |
| # include <boost/python/detail/prefix.hpp> |
| # include <boost/function/function0.hpp> |
| |
| namespace boost { namespace python { |
| |
| struct BOOST_PYTHON_DECL_EXCEPTION error_already_set |
| { |
| virtual ~error_already_set(); |
| }; |
| |
| // Handles exceptions caught just before returning to Python code. |
| // Returns true iff an exception was caught. |
| BOOST_PYTHON_DECL bool handle_exception_impl(function0<void>); |
| |
| template <class T> |
| bool handle_exception(T f) |
| { |
| return handle_exception_impl(function0<void>(boost::ref(f))); |
| } |
| |
| namespace detail { inline void rethrow() { throw; } } |
| |
| inline void handle_exception() |
| { |
| handle_exception(detail::rethrow); |
| } |
| |
| BOOST_PYTHON_DECL void throw_error_already_set(); |
| |
| template <class T> |
| inline T* expect_non_null(T* x) |
| { |
| if (x == 0) |
| throw_error_already_set(); |
| return x; |
| } |
| |
| // Return source if it is an instance of pytype; throw an appropriate |
| // exception otherwise. |
| BOOST_PYTHON_DECL PyObject* pytype_check(PyTypeObject* pytype, PyObject* source); |
| |
| }} // namespace boost::python |
| |
| #endif // ERRORS_DWA052500_H_ |