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object_attributes.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 OBJECT_ATTRIBUTES_DWA2002615_HPP # define OBJECT_ATTRIBUTES_DWA2002615_HPP # include <boost/python/detail/prefix.hpp> # include <boost/python/proxy.hpp> # include <boost/python/object_core.hpp> # include <boost/python/object_protocol.hpp> namespace boost { namespace python { namespace api { struct const_attribute_policies { typedef char const* key_type; static object get(object const& target, char const* key); static object get(object const& target, object const& key); }; struct attribute_policies : const_attribute_policies { static object const& set(object const& target, char const* key, object const& value); static void del(object const&target, char const* key); }; struct const_objattribute_policies { typedef object const key_type; static object get(object const& target, object const& key); }; struct objattribute_policies : const_objattribute_policies { static object const& set(object const& target, object const& key, object const& value); static void del(object const&target, object const& key); }; // // implementation // template <class U> inline object_attribute object_operators<U>::attr(char const* name) { object_cref2 x = *static_cast<U*>(this); return object_attribute(x, name); } template <class U> inline const_object_attribute object_operators<U>::attr(char const* name) const { object_cref2 x = *static_cast<U const*>(this); return const_object_attribute(x, name); } template <class U> inline object_objattribute object_operators<U>::attr(object const& name) { object_cref2 x = *static_cast<U*>(this); return object_objattribute(x, name); } template <class U> inline const_object_objattribute object_operators<U>::attr(object const& name) const { object_cref2 x = *static_cast<U const*>(this); return const_object_objattribute(x, name); } inline object const_attribute_policies::get(object const& target, char const* key) { return python::getattr(target, key); } inline object const_objattribute_policies::get(object const& target, object const& key) { return python::getattr(target, key); } inline object const& attribute_policies::set( object const& target , char const* key , object const& value) { python::setattr(target, key, value); return value; } inline object const& objattribute_policies::set( object const& target , object const& key , object const& value) { python::setattr(target, key, value); return value; } inline void attribute_policies::del( object const& target , char const* key) { python::delattr(target, key); } inline void objattribute_policies::del( object const& target , object const& key) { python::delattr(target, key); } }}} // namespace boost::python::api #endif // OBJECT_ATTRIBUTES_DWA2002615_HPP