summaryrefslogtreecommitdiff
path: root/boost/python/arg_from_python.hpp
blob: 05611edbbd91b8f5481b3edba9f9a681973b2c08 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
// 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 ARG_FROM_PYTHON_DWA2002128_HPP
# define ARG_FROM_PYTHON_DWA2002128_HPP

# include <boost/python/detail/prefix.hpp>
# include <boost/python/converter/arg_from_python.hpp>
# if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400)) \
    || BOOST_WORKAROUND(BOOST_INTEL_WIN, BOOST_TESTED_AT(800))
# include <boost/type_traits/remove_cv.hpp>
#endif

namespace boost { namespace python { 

template <class T>
struct arg_from_python
    : converter::select_arg_from_python<
# if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400)) \
    || BOOST_WORKAROUND(BOOST_INTEL_WIN, BOOST_TESTED_AT(800))
          typename boost::remove_cv<T>::type
# else
          T
# endif 
      >::type
{
    typedef typename converter::select_arg_from_python<
# if BOOST_WORKAROUND(BOOST_MSVC, BOOST_TESTED_AT(1400)) \
    || BOOST_WORKAROUND(BOOST_INTEL_WIN, BOOST_TESTED_AT(800))
          typename boost::remove_cv<T>::type
# else
          T
# endif 
        >::type base;
    
    arg_from_python(PyObject*);
};

// specialization for PyObject*
template <>
struct arg_from_python<PyObject*>
{
    typedef PyObject* result_type;
    
    arg_from_python(PyObject* p) : m_source(p) {}
    bool convertible() const { return true; }
    PyObject* operator()() const { return m_source; }
 private:
    PyObject* m_source;
};

template <>
struct arg_from_python<PyObject* const&>
{
    typedef PyObject* const& result_type;
    
    arg_from_python(PyObject* p) : m_source(p) {}
    bool convertible() const { return true; }
    PyObject*const& operator()() const { return m_source; }
 private:
    PyObject* m_source;
};

//
// implementations
//
template <class T>
inline arg_from_python<T>::arg_from_python(PyObject* source)
    : base(source)
{
}

}} // namespace boost::python

#endif // ARG_FROM_PYTHON_DWA2002128_HPP