1 files changed, 37 insertions, 0 deletions
diff --git a/boost/python/converter/pyobject_type.hpp b/boost/python/converter/pyobject_type.hpp
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+++ b/boost/python/converter/pyobject_type.hpp
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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_TYPE_DWA2002720_HPP
+# define PYOBJECT_TYPE_DWA2002720_HPP
+
+# include <boost/python/cast.hpp>
+
+namespace boost { namespace python { namespace converter { 
+
+BOOST_PYTHON_DECL PyObject* checked_downcast_impl(PyObject*, PyTypeObject*);
+
+// Used as a base class for specializations which need to provide
+// Python type checking capability.
+template <class Object, PyTypeObject* pytype>
+struct pyobject_type 
+{
+    static bool check(PyObject* x)
+    {
+        return ::PyObject_IsInstance(x, (PyObject*)pytype);
+    }
+
+    static Object* checked_downcast(PyObject* x)
+    {
+        return python::downcast<Object>(
+            (checked_downcast_impl)(x, pytype)
+            );
+    }
+#ifndef BOOST_PYTHON_NO_PY_SIGNATURES
+    static PyTypeObject const* get_pytype() { return pytype; }
+#endif
+};
+
+}}} // namespace boost::python::converter
+
+#endif // PYOBJECT_TYPE_DWA2002720_HPP