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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 PYOBJECT_TYPE_DWA2002720_HPP | |
6 | # define PYOBJECT_TYPE_DWA2002720_HPP | |
7 | ||
8 | # include <boost/python/cast.hpp> | |
9 | ||
10 | namespace boost { namespace python { namespace converter { | |
11 | ||
12 | BOOST_PYTHON_DECL PyObject* checked_downcast_impl(PyObject*, PyTypeObject*); | |
13 | ||
14 | // Used as a base class for specializations which need to provide | |
15 | // Python type checking capability. | |
16 | template <class Object, PyTypeObject* pytype> | |
17 | struct pyobject_type | |
18 | { | |
19 | static bool check(PyObject* x) | |
20 | { | |
21 | return ::PyObject_IsInstance(x, (PyObject*)pytype); | |
22 | } | |
23 | ||
24 | static Object* checked_downcast(PyObject* x) | |
25 | { | |
26 | return python::downcast<Object>( | |
27 | (checked_downcast_impl)(x, pytype) | |
28 | ); | |
29 | } | |
30 | #ifndef BOOST_PYTHON_NO_PY_SIGNATURES | |
31 | static PyTypeObject const* get_pytype() { return pytype; } | |
32 | #endif | |
33 | }; | |
34 | ||
35 | }}} // namespace boost::python::converter | |
36 | ||
37 | #endif // PYOBJECT_TYPE_DWA2002720_HPP |