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1 | ||
2 | #include <boost/parameter.hpp> | |
3 | #include <boost/mpl/is_sequence.hpp> | |
4 | #include <boost/noncopyable.hpp> | |
5 | #include <boost/type_traits/is_class.hpp> | |
6 | #include <memory> | |
7 | #include <boost/config.hpp> | |
8 | ||
9 | using namespace boost::parameter; | |
10 | ||
11 | namespace boost { namespace python { | |
12 | ||
13 | BOOST_PARAMETER_TEMPLATE_KEYWORD(class_type) | |
14 | BOOST_PARAMETER_TEMPLATE_KEYWORD(base_list) | |
15 | BOOST_PARAMETER_TEMPLATE_KEYWORD(held_type) | |
16 | BOOST_PARAMETER_TEMPLATE_KEYWORD(copyable) | |
17 | ||
18 | template <class B = int> | |
19 | struct bases | |
20 | {}; | |
21 | ||
22 | }} | |
23 | namespace boost { namespace python { | |
24 | ||
25 | using boost::mpl::_; | |
26 | ||
27 | typedef parameter::parameters< | |
28 | required<tag::class_type, boost::is_class<_> > | |
29 | , parameter::optional<tag::base_list, mpl::is_sequence<_> > | |
30 | , parameter::optional<tag::held_type> | |
31 | , parameter::optional<tag::copyable> | |
32 | > class_signature; | |
33 | ||
34 | }} | |
35 | ||
36 | namespace boost { namespace python { | |
37 | ||
38 | template < | |
39 | class A0 | |
40 | , class A1 = parameter::void_ | |
41 | , class A2 = parameter::void_ | |
42 | , class A3 = parameter::void_ | |
43 | > | |
44 | struct class_ | |
45 | { | |
46 | // Create ArgumentPack | |
47 | typedef typename | |
48 | class_signature::bind<A0,A1,A2,A3>::type | |
49 | args; | |
50 | ||
51 | // Extract first logical parameter. | |
52 | typedef typename parameter::value_type< | |
53 | args, tag::class_type>::type class_type; | |
54 | ||
55 | typedef typename parameter::value_type< | |
56 | args, tag::base_list, bases<> >::type base_list; | |
57 | ||
58 | typedef typename parameter::value_type< | |
59 | args, tag::held_type, class_type>::type held_type; | |
60 | ||
61 | typedef typename parameter::value_type< | |
62 | args, tag::copyable, void>::type copyable; | |
63 | }; | |
64 | ||
65 | }} | |
66 | ||
67 | ||
68 | using boost::python::class_type; | |
69 | using boost::python::copyable; | |
70 | using boost::python::held_type; | |
71 | using boost::python::base_list; | |
72 | using boost::python::bases; | |
73 | ||
74 | struct B {}; | |
75 | struct D {}; | |
76 | typedef boost::python::class_< | |
77 | class_type<B>, copyable<boost::noncopyable> | |
78 | > c1; | |
79 | ||
80 | typedef boost::python::class_< | |
81 | ||
82 | #if defined(BOOST_NO_CXX11_SMART_PTR) | |
83 | ||
84 | D, held_type<std::auto_ptr<D> >, base_list<bases<B> > | |
85 | ||
86 | #else | |
87 | ||
88 | D, held_type<std::unique_ptr<D> >, base_list<bases<B> > | |
89 | ||
90 | #endif | |
91 | ||
92 | > c2; | |
93 | ||
94 | BOOST_MPL_ASSERT((boost::is_same<c1::class_type, B>)); | |
95 | BOOST_MPL_ASSERT((boost::is_same<c1::base_list, bases<> >)); | |
96 | BOOST_MPL_ASSERT((boost::is_same<c1::held_type, B>)); | |
97 | BOOST_MPL_ASSERT(( | |
98 | boost::is_same<c1::copyable, boost::noncopyable> | |
99 | )); | |
100 | ||
101 | BOOST_MPL_ASSERT((boost::is_same<c2::class_type, D>)); | |
102 | BOOST_MPL_ASSERT((boost::is_same<c2::base_list, bases<B> >)); | |
103 | ||
104 | #if defined(BOOST_NO_CXX11_SMART_PTR) | |
105 | ||
106 | BOOST_MPL_ASSERT(( | |
107 | boost::is_same<c2::held_type, std::auto_ptr<D> > | |
108 | )); | |
109 | ||
110 | #else | |
111 | ||
112 | BOOST_MPL_ASSERT(( | |
113 | boost::is_same<c2::held_type, std::unique_ptr<D> > | |
114 | )); | |
115 | ||
116 | #endif | |
117 | ||
118 | BOOST_MPL_ASSERT((boost::is_same<c2::copyable, void>)); |