]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
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 | ||
b32b8144 FG |
12 | BOOST_PYTHON_DECL inline |
13 | PyObject* checked_downcast_impl(PyObject *obj, PyTypeObject *type) | |
14 | { | |
15 | return (PyType_IsSubtype(Py_TYPE(obj), type) ? obj : NULL); | |
16 | } | |
7c673cae FG |
17 | // Used as a base class for specializations which need to provide |
18 | // Python type checking capability. | |
19 | template <class Object, PyTypeObject* pytype> | |
20 | struct pyobject_type | |
21 | { | |
22 | static bool check(PyObject* x) | |
23 | { | |
24 | return ::PyObject_IsInstance(x, (PyObject*)pytype); | |
25 | } | |
26 | ||
27 | static Object* checked_downcast(PyObject* x) | |
28 | { | |
29 | return python::downcast<Object>( | |
30 | (checked_downcast_impl)(x, pytype) | |
31 | ); | |
32 | } | |
33 | #ifndef BOOST_PYTHON_NO_PY_SIGNATURES | |
34 | static PyTypeObject const* get_pytype() { return pytype; } | |
35 | #endif | |
36 | }; | |
37 | ||
38 | }}} // namespace boost::python::converter | |
39 | ||
40 | #endif // PYOBJECT_TYPE_DWA2002720_HPP |