liuxiaolong
2021-07-20 58d904a328c0d849769b483e901a0be9426b8209
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// Copyright David Abrahams 2002.
// 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 PYOBJECT_TRAITS_DWA2002720_HPP
# define PYOBJECT_TRAITS_DWA2002720_HPP
 
# include <boost/python/detail/prefix.hpp>
# include <boost/python/converter/pyobject_type.hpp>
 
namespace boost { namespace python { namespace converter { 
 
template <class> struct pyobject_traits;
 
template <>
struct pyobject_traits<PyObject>
{
    // All objects are convertible to PyObject
    static bool check(PyObject*) { return true; }
    static PyObject* checked_downcast(PyObject* x) { return x; }
#ifndef BOOST_PYTHON_NO_PY_SIGNATURES
    static PyTypeObject const* get_pytype() { return 0; }
#endif
};
 
//
// Specializations
//
 
# define BOOST_PYTHON_BUILTIN_OBJECT_TRAITS(T)                  \
    template <> struct pyobject_traits<Py##T##Object>           \
        : pyobject_type<Py##T##Object, &Py##T##_Type> {}
 
// This is not an exhaustive list; should be expanded.
BOOST_PYTHON_BUILTIN_OBJECT_TRAITS(Type);
BOOST_PYTHON_BUILTIN_OBJECT_TRAITS(List);
#if PY_VERSION_HEX < 0x03000000
BOOST_PYTHON_BUILTIN_OBJECT_TRAITS(Int);
#endif
BOOST_PYTHON_BUILTIN_OBJECT_TRAITS(Long);
BOOST_PYTHON_BUILTIN_OBJECT_TRAITS(Dict);
BOOST_PYTHON_BUILTIN_OBJECT_TRAITS(Tuple);
 
}}} // namespace boost::python::converter
 
#endif // PYOBJECT_TRAITS_DWA2002720_HPP