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3rdparty/boost_1_81_0/boost/python/errors.hpp 1.36 KB
0b6a182c   Hu Chunming   添加无鉴权注册和注销
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  //  (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 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_