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1 // Copyright David Abrahams 2002.
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2 // Distributed under the Boost Software License, Version 1.0. (See
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3 // accompanying file LICENSE_1_0.txt or copy at
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4 // http://www.boost.org/LICENSE_1_0.txt)
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5 #ifndef OBJECT_ITEMS_DWA2002615_HPP
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6 # define OBJECT_ITEMS_DWA2002615_HPP
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7
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8 # include <boost/python/detail/prefix.hpp>
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9
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10 # include <boost/python/proxy.hpp>
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11 # include <boost/python/object_core.hpp>
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12 # include <boost/python/object_protocol.hpp>
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13
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14 namespace boost { namespace python { namespace api {
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15
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16 struct const_item_policies
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17 {
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18 typedef object key_type;
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19 static object get(object const& target, object const& key);
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20 };
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21
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22 struct item_policies : const_item_policies
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23 {
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24 static object const& set(object const& target, object const& key, object const& value);
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25 static void del(object const& target, object const& key);
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26 };
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27
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28 //
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29 // implementation
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30 //
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31 template <class U>
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32 inline object_item
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33 object_operators<U>::operator[](object_cref key)
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34 {
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35 object_cref2 x = *static_cast<U*>(this);
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36 return object_item(x, key);
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37 }
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38
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39 template <class U>
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40 inline const_object_item
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41 object_operators<U>::operator[](object_cref key) const
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42 {
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43 object_cref2 x = *static_cast<U const*>(this);
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44 return const_object_item(x, key);
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45 }
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46
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47 # if !defined(BOOST_MSVC) || BOOST_MSVC > 1300
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48 template <class U>
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49 template <class T>
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50 inline const_object_item
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51 object_operators<U>::operator[](T const& key) const
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52 {
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53 return (*this)[object(key)];
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54 }
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55
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56 template <class U>
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57 template <class T>
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58 inline object_item
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59 object_operators<U>::operator[](T const& key)
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60 {
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61 return (*this)[object(key)];
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62 }
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63 # endif
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64
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65
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66 inline object const_item_policies::get(object const& target, object const& key)
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67 {
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68 return getitem(target, key);
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69 }
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70
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71 inline object const& item_policies::set(
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72 object const& target
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73 , object const& key
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74 , object const& value)
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75 {
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76 setitem(target, key, value);
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77 return value;
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78 }
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79
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80 inline void item_policies::del(
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81 object const& target
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82 , object const& key)
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83 {
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84 delitem(target, key);
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85 }
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86
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87 }}} // namespace boost::python::api
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88
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89 #endif // OBJECT_ITEMS_DWA2002615_HPP
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