Imported existing code

libraries/include/boost/python/converter/registry.hpp

@@ -0,0 +1,55 @@
+//  Copyright David Abrahams 2001.
+// 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 REGISTRY_DWA20011127_HPP
+# define REGISTRY_DWA20011127_HPP
+# include <boost/python/type_id.hpp>
+# include <boost/python/converter/to_python_function_type.hpp>
+# include <boost/python/converter/rvalue_from_python_data.hpp>
+# include <boost/python/converter/constructor_function.hpp>
+# include <boost/python/converter/convertible_function.hpp>
+
+namespace boost { namespace python { namespace converter {
+
+struct registration;
+
+// This namespace acts as a sort of singleton
+namespace registry
+{
+  // Get the registration corresponding to the type, creating it if necessary
+  BOOST_PYTHON_DECL registration const& lookup(type_info);
+
+  // Get the registration corresponding to the type, creating it if
+  // necessary.  Use this first when the type is a shared_ptr.
+  BOOST_PYTHON_DECL registration const& lookup_shared_ptr(type_info);
+
+  // Return a pointer to the corresponding registration, if one exists
+  BOOST_PYTHON_DECL registration const* query(type_info);
+  
+  BOOST_PYTHON_DECL void insert(to_python_function_t, type_info, PyTypeObject const* (*to_python_target_type)() = 0);
+
+  // Insert an lvalue from_python converter
+  BOOST_PYTHON_DECL void insert(void* (*convert)(PyObject*), type_info, PyTypeObject const* (*expected_pytype)() = 0);
+
+  // Insert an rvalue from_python converter
+  BOOST_PYTHON_DECL void insert(
+      convertible_function
+      , constructor_function
+      , type_info
+      , PyTypeObject const* (*expected_pytype)()  = 0
+      );
+  
+  // Insert an rvalue from_python converter at the tail of the
+  // chain. Used for implicit conversions
+  BOOST_PYTHON_DECL void push_back(
+      convertible_function
+      , constructor_function
+      , type_info
+      , PyTypeObject const* (*expected_pytype)()  = 0
+      );
+}
+
+}}} // namespace boost::python::converter
+
+#endif // REGISTRY_DWA20011127_HPP