Added boost header

test/external/boost/python/suite/indexing/map_indexing_suite.hpp

@@ -0,0 +1,181 @@
+//  (C) Copyright Joel de Guzman 2003.
+//  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 MAP_INDEXING_SUITE_JDG20038_HPP
+# define MAP_INDEXING_SUITE_JDG20038_HPP
+
+# include <boost/python/suite/indexing/indexing_suite.hpp>
+# include <boost/python/iterator.hpp>
+# include <boost/python/call_method.hpp>
+# include <boost/python/tuple.hpp>
+
+namespace boost { namespace python {
+
+    // Forward declaration
+    template <class Container, bool NoProxy, class DerivedPolicies>
+    class map_indexing_suite;
+
+    namespace detail
+    {
+        template <class Container, bool NoProxy>
+        class final_map_derived_policies
+            : public map_indexing_suite<Container,
+                NoProxy, final_map_derived_policies<Container, NoProxy> > {};
+    }
+
+    // The map_indexing_suite class is a predefined indexing_suite derived
+    // class for wrapping std::map (and std::map like) classes. It provides
+    // all the policies required by the indexing_suite (see indexing_suite).
+    // Example usage:
+    //
+    //  class X {...};
+    //
+    //  ...
+    //
+    //      class_<std::map<std::string, X> >("XMap")
+    //          .def(map_indexing_suite<std::map<std::string, X> >())
+    //      ;
+    //
+    // By default indexed elements are returned by proxy. This can be
+    // disabled by supplying *true* in the NoProxy template parameter.
+    //
+    template <
+        class Container,
+        bool NoProxy = false,
+        class DerivedPolicies
+            = detail::final_map_derived_policies<Container, NoProxy> >
+    class map_indexing_suite
+        : public indexing_suite<
+            Container
+          , DerivedPolicies
+          , NoProxy
+          , true
+          , typename Container::value_type::second_type
+          , typename Container::key_type
+          , typename Container::key_type
+        >
+    {
+    public:
+
+        typedef typename Container::value_type value_type;
+        typedef typename Container::value_type::second_type data_type;
+        typedef typename Container::key_type key_type;
+        typedef typename Container::key_type index_type;
+        typedef typename Container::size_type size_type;
+        typedef typename Container::difference_type difference_type;
+
+        template <class Class>
+        static void
+        extension_def(Class& cl)
+        {
+            //  Wrap the map's element (value_type)
+            std::string elem_name = "map_indexing_suite_";
+            object class_name(cl.attr("__name__"));
+            extract<std::string> class_name_extractor(class_name);
+            elem_name += class_name_extractor();
+            elem_name += "_entry";
+
+            typedef typename mpl::if_<
+                mpl::and_<is_class<data_type>, mpl::bool_<!NoProxy> >
+              , return_internal_reference<>
+              , default_call_policies
+            >::type get_data_return_policy;
+
+            class_<value_type>(elem_name.c_str())
+                .def("__repr__", &DerivedPolicies::print_elem)
+                .def("data", &DerivedPolicies::get_data, get_data_return_policy())
+                .def("key", &DerivedPolicies::get_key)
+            ;
+        }
+
+        static object
+        print_elem(typename Container::value_type const& e)
+        {
+            return "(%s, %s)" % python::make_tuple(e.first, e.second);
+        }
+
+        static
+        typename mpl::if_<
+            mpl::and_<is_class<data_type>, mpl::bool_<!NoProxy> >
+          , data_type&
+          , data_type
+        >::type
+        get_data(typename Container::value_type& e)
+        {
+            return e.second;
+        }
+
+        static typename Container::key_type
+        get_key(typename Container::value_type& e)
+        {
+            return e.first;
+        }
+
+        static data_type&
+        get_item(Container& container, index_type i_)
+        {
+            typename Container::iterator i = container.find(i_);
+            if (i == container.end())
+            {
+                PyErr_SetString(PyExc_KeyError, "Invalid key");
+                throw_error_already_set();
+            }
+            return i->second;
+        }
+
+        static void
+        set_item(Container& container, index_type i, data_type const& v)
+        {
+            container[i] = v;
+        }
+
+        static void
+        delete_item(Container& container, index_type i)
+        {
+            container.erase(i);
+        }
+
+        static size_t
+        size(Container& container)
+        {
+            return container.size();
+        }
+
+        static bool
+        contains(Container& container, key_type const& key)
+        {
+            return container.find(key) != container.end();
+        }
+
+        static bool
+        compare_index(Container& container, index_type a, index_type b)
+        {
+            return container.key_comp()(a, b);
+        }
+
+        static index_type
+        convert_index(Container& /*container*/, PyObject* i_)
+        {
+            extract<key_type const&> i(i_);
+            if (i.check())
+            {
+                return i();
+            }
+            else
+            {
+                extract<key_type> i(i_);
+                if (i.check())
+                    return i();
+            }
+
+            PyErr_SetString(PyExc_TypeError, "Invalid index type");
+            throw_error_already_set();
+            return index_type();
+        }
+    };
+
+}} // namespace boost::python
+
+#endif // MAP_INDEXING_SUITE_JDG20038_HPP