Added boost header

test/external/boost/python/converter/arg_to_python.hpp

@@ -0,0 +1,261 @@
+// 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 ARG_TO_PYTHON_DWA200265_HPP
+# define ARG_TO_PYTHON_DWA200265_HPP
+
+# include <boost/python/ptr.hpp>
+# include <boost/python/tag.hpp>
+# include <boost/python/to_python_indirect.hpp>
+
+# include <boost/python/converter/registered.hpp>
+# include <boost/python/converter/registered_pointee.hpp>
+# include <boost/python/converter/arg_to_python_base.hpp>
+# include <boost/python/converter/shared_ptr_to_python.hpp>
+// Bring in specializations
+# include <boost/python/converter/builtin_converters.hpp>
+
+# include <boost/python/object/function_handle.hpp>
+
+# include <boost/python/base_type_traits.hpp>
+
+# include <boost/python/detail/indirect_traits.hpp>
+# include <boost/python/detail/convertible.hpp>
+# include <boost/python/detail/string_literal.hpp>
+# include <boost/python/detail/value_is_shared_ptr.hpp>
+
+# include <boost/type_traits/cv_traits.hpp>
+# include <boost/type_traits/composite_traits.hpp>
+# include <boost/type_traits/function_traits.hpp>
+
+
+# include <boost/mpl/or.hpp>
+
+namespace boost { namespace python { namespace converter { 
+
+template <class T> struct is_object_manager;
+
+namespace detail
+{
+  template <class T>
+  struct function_arg_to_python : handle<>
+  {
+      function_arg_to_python(T const& x);
+  };
+
+  template <class T>
+  struct reference_arg_to_python : handle<>
+  {
+      reference_arg_to_python(T& x);
+   private:
+      static PyObject* get_object(T& x);
+  };
+
+  template <class T>
+  struct shared_ptr_arg_to_python : handle<>
+  {
+      shared_ptr_arg_to_python(T const& x);
+   private:
+      static PyObject* get_object(T& x);
+  };
+
+  template <class T>
+  struct value_arg_to_python : arg_to_python_base
+  {
+      // Throw an exception if the conversion can't succeed
+      value_arg_to_python(T const&);
+  };
+
+  template <class Ptr>
+  struct pointer_deep_arg_to_python : arg_to_python_base
+  {
+      // Throw an exception if the conversion can't succeed
+      pointer_deep_arg_to_python(Ptr);
+  };
+
+  template <class Ptr>
+  struct pointer_shallow_arg_to_python : handle<>
+  {
+      // Throw an exception if the conversion can't succeed
+      pointer_shallow_arg_to_python(Ptr);
+   private:
+      static PyObject* get_object(Ptr p);
+  };
+
+  // Convert types that manage a Python object to_python
+  template <class T>
+  struct object_manager_arg_to_python
+  {
+      object_manager_arg_to_python(T const& x) : m_src(x) {}
+      
+      PyObject* get() const
+      {
+          return python::upcast<PyObject>(get_managed_object(m_src, tag));
+      }
+      
+   private:
+      T const& m_src;
+  };
+
+  template <class T>
+  struct select_arg_to_python
+  {
+      typedef typename unwrap_reference<T>::type unwrapped_referent;
+      typedef typename unwrap_pointer<T>::type unwrapped_ptr;
+
+      typedef typename mpl::if_<
+          // Special handling for char const[N]; interpret them as char
+          // const* for the sake of conversion
+          python::detail::is_string_literal<T const>
+        , arg_to_python<char const*>
+
+        , typename mpl::if_<
+              python::detail::value_is_shared_ptr<T>
+            , shared_ptr_arg_to_python<T>
+      
+            , typename mpl::if_<
+                mpl::or_<
+                    is_function<T>
+                  , indirect_traits::is_pointer_to_function<T>
+                  , is_member_function_pointer<T>
+                >
+                , function_arg_to_python<T>
+
+                , typename mpl::if_<
+                      is_object_manager<T>
+                    , object_manager_arg_to_python<T>
+
+                    , typename mpl::if_<
+                          is_pointer<T>
+                        , pointer_deep_arg_to_python<T>
+
+                        , typename mpl::if_<
+                              is_pointer_wrapper<T>
+                            , pointer_shallow_arg_to_python<unwrapped_ptr>
+
+                            , typename mpl::if_<
+                                  is_reference_wrapper<T>
+                                , reference_arg_to_python<unwrapped_referent>
+                                , value_arg_to_python<T>
+                              >::type
+                          >::type
+                      >::type
+                  >::type
+              >::type
+          >::type
+      >::type
+      
+      type;
+  };
+}
+
+template <class T>
+struct arg_to_python
+    : detail::select_arg_to_python<T>::type
+{
+    typedef typename detail::select_arg_to_python<T>::type base;
+ public: // member functions
+    // Throw an exception if the conversion can't succeed
+    arg_to_python(T const& x);
+};
+
+//
+// implementations
+//
+namespace detail
+{
+  // reject_raw_object_ptr -- cause a compile-time error if the user
+  // should pass a raw Python object pointer
+  using python::detail::yes_convertible;
+  using python::detail::no_convertible;
+  using python::detail::unspecialized;
+  
+  template <class T> struct cannot_convert_raw_PyObject;
+
+  template <class T, class Convertibility>
+  struct reject_raw_object_helper
+  {
+      static void error(Convertibility)
+      {
+          cannot_convert_raw_PyObject<T*>::to_python_use_handle_instead();
+      }
+      static void error(...) {}
+  };
+  
+  template <class T>
+  inline void reject_raw_object_ptr(T*)
+  {
+      reject_raw_object_helper<T,yes_convertible>::error(
+          python::detail::convertible<PyObject const volatile*>::check((T*)0));
+      
+      typedef typename remove_cv<T>::type value_type;
+      
+      reject_raw_object_helper<T,no_convertible>::error(
+          python::detail::convertible<unspecialized*>::check(
+              (base_type_traits<value_type>*)0
+              ));
+  }
+  // ---------
+      
+  template <class T>
+  inline function_arg_to_python<T>::function_arg_to_python(T const& x)
+      : handle<>(python::objects::make_function_handle(x))
+  {
+  }
+
+  template <class T>
+  inline value_arg_to_python<T>::value_arg_to_python(T const& x)
+      : arg_to_python_base(&x, registered<T>::converters)
+  {
+  }
+
+  template <class Ptr>
+  inline pointer_deep_arg_to_python<Ptr>::pointer_deep_arg_to_python(Ptr x)
+      : arg_to_python_base(x, registered_pointee<Ptr>::converters)
+  {
+      detail::reject_raw_object_ptr((Ptr)0);
+  }
+
+  template <class T>
+  inline PyObject* reference_arg_to_python<T>::get_object(T& x)
+  {
+      to_python_indirect<T&,python::detail::make_reference_holder> convert;
+      return convert(x);
+  }
+
+  template <class T>
+  inline reference_arg_to_python<T>::reference_arg_to_python(T& x)
+      : handle<>(reference_arg_to_python<T>::get_object(x))
+  {
+  }
+
+  template <class T>
+  inline shared_ptr_arg_to_python<T>::shared_ptr_arg_to_python(T const& x)
+      : handle<>(shared_ptr_to_python(x))
+  {
+  }
+
+  template <class Ptr>
+  inline pointer_shallow_arg_to_python<Ptr>::pointer_shallow_arg_to_python(Ptr x)
+      : handle<>(pointer_shallow_arg_to_python<Ptr>::get_object(x))
+  {
+      detail::reject_raw_object_ptr((Ptr)0);
+  }
+
+  template <class Ptr>
+  inline PyObject* pointer_shallow_arg_to_python<Ptr>::get_object(Ptr x)
+  {
+      to_python_indirect<Ptr,python::detail::make_reference_holder> convert;
+      return convert(x);
+  }
+}
+
+template <class T>
+inline arg_to_python<T>::arg_to_python(T const& x)
+    : base(x)
+{}
+
+}}} // namespace boost::python::converter
+
+#endif // ARG_TO_PYTHON_DWA200265_HPP