[pygccxml-commit] SF.net SVN: pygccxml: [714] pyplusplus_dev/pyplusplus/code_repository/ call_policies.py

[<rom...@us...>]

Revision: 714
          http://svn.sourceforge.net/pygccxml/?rev=714&view=rev
Author:   roman_yakovenko
Date:     2006-11-11 23:23:32 -0800 (Sat, 11 Nov 2006)

Log Message:
-----------
integrating return_pointee_value with Py++

Added Paths:
-----------
    pyplusplus_dev/pyplusplus/code_repository/call_policies.py

Added: pyplusplus_dev/pyplusplus/code_repository/call_policies.py
===================================================================
--- pyplusplus_dev/pyplusplus/code_repository/call_policies.py	                        (rev 0)
+++ pyplusplus_dev/pyplusplus/code_repository/call_policies.py	2006-11-12 07:23:32 UTC (rev 714)
@@ -0,0 +1,78 @@
+# Copyright 2004 Roman Yakovenko.
+# 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)
+
+"""
+This file contains C++ code - custom call policies
+"""
+
+
+namespace = "pyplusplus::call_policies"
+
+file_name = "__call_policies.pypp.hpp"
+
+code = \
+"""// Copyright 2004 Roman Yakovenko.
+// 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 call_policies_pyplusplus_hpp__
+#define call_policies_pyplusplus_hpp__
+
+#include "boost/python.hpp"
+
+namespace pyplusplus{ namespace call_policies{
+
+namespace bpl = boost::python;
+
+namespace detail{
+    
+struct make_value_holder{
+
+    template <class T>
+    static PyObject* execute(T* p){
+        if (p == 0){
+            return bpl::detail::none();
+        }
+        else{
+            bpl::object p_value( *p );
+            return bpl::incref( p_value.ptr() );
+        }
+    }
+
+};
+
+template <class R>
+struct return_pointee_value_requires_a_pointer_return_type
+# if defined(__GNUC__) && __GNUC__ >= 3 || defined(__EDG__)
+{}
+# endif
+;
+
+} //detail
+
+struct return_pointee_value{
+
+    template <class T>
+    struct apply{
+    
+        BOOST_STATIC_CONSTANT( bool, ok = boost::is_pointer<T>::value );
+        
+        typedef typename boost::mpl::if_c<
+            ok
+            , bpl::to_python_indirect<T, detail::make_value_holder>
+            , detail::return_pointee_value_requires_a_pointer_return_type<T>
+        >::type type;
+    
+    };
+
+};
+
+} /*pyplusplus*/ } /*call_policies*/
+
+
+#endif//call_policies_pyplusplus_hpp__
+
+"""


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