ceph/src/boost/boost/python/object_items.hpp

   1 // Copyright David Abrahams 2002.
   2 // Distributed under the Boost Software License, Version 1.0. (See
   3 // accompanying file LICENSE_1_0.txt or copy at
   4 // http://www.boost.org/LICENSE_1_0.txt)
   5 #ifndef OBJECT_ITEMS_DWA2002615_HPP
   6 # define OBJECT_ITEMS_DWA2002615_HPP
   7
   8 # include <boost/python/detail/prefix.hpp>
   9
  10 # include <boost/python/proxy.hpp>
  11 # include <boost/python/object_core.hpp>
  12 # include <boost/python/object_protocol.hpp>
  13
  14 namespace boost { namespace python { namespace api {
  15
  16 struct const_item_policies
  17 {
  18     typedef object key_type;
  19     static object get(object const& target, object const& key);
  20 };
  21
  22 struct item_policies : const_item_policies
  23 {
  24     static object const& set(object const& target, object const& key, object const& value);
  25     static void del(object const& target, object const& key);
  26 };
  27
  28 //
  29 // implementation
  30 //
  31 template <class U>
  32 inline object_item
  33 object_operators<U>::operator[](object_cref key)
  34 {
  35     object_cref2 x = *static_cast<U*>(this);
  36     return object_item(x, key);
  37 }
  38
  39 template <class U>
  40 inline const_object_item
  41 object_operators<U>::operator[](object_cref key) const
  42 {
  43     object_cref2 x = *static_cast<U const*>(this);
  44     return const_object_item(x, key);
  45 }
  46
  47 template <class U>
  48 template <class T>
  49 inline const_object_item
  50 object_operators<U>::operator[](T const& key) const
  51 {
  52     return (*this)[object(key)];
  53 }
  54
  55 template <class U>
  56 template <class T>
  57 inline object_item
  58 object_operators<U>::operator[](T const& key)
  59 {
  60     return (*this)[object(key)];
  61 }
  62
  63 inline object const_item_policies::get(object const& target, object const& key)
  64 {
  65     return getitem(target, key);
  66 }
  67
  68 inline object const& item_policies::set(
  69     object const& target
  70     , object const& key
  71     , object const& value)
  72 {
  73     setitem(target, key, value);
  74     return value;
  75 }
  76
  77 inline void item_policies::del(
  78     object const& target
  79     , object const& key)
  80 {
  81     delitem(target, key);
  82 }
  83
  84 }}} // namespace boost::python::api
  85
  86 #endif // OBJECT_ITEMS_DWA2002615_HPP