ceph/src/boost/boost/python/object/class_wrapper.hpp

   1 // Copyright David Abrahams 2001.
   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 CLASS_WRAPPER_DWA20011221_HPP
   6 # define CLASS_WRAPPER_DWA20011221_HPP
   7
   8 # include <boost/python/to_python_converter.hpp>
   9 #ifndef BOOST_PYTHON_NO_PY_SIGNATURES
  10 # include <boost/python/converter/pytype_function.hpp>
  11 #endif
  12 # include <boost/ref.hpp>
  13
  14 namespace boost { namespace python { namespace objects {
  15
  16 //
  17 // These two classes adapt the static execute function of a class
  18 // MakeInstance execute() function returning a new PyObject*
  19 // reference. The first one is used for class copy constructors, and
  20 // the second one is used to handle smart pointers.
  21 //
  22
  23 template <class Src, class MakeInstance>
  24 struct class_cref_wrapper
  25     : to_python_converter<Src,class_cref_wrapper<Src,MakeInstance> ,true>
  26 {
  27     static PyObject* convert(Src const& x)
  28     {
  29         return MakeInstance::execute(boost::ref(x));
  30     }
  31 #ifndef BOOST_PYTHON_NO_PY_SIGNATURES
  32     static PyTypeObject const *get_pytype() { return converter::registered_pytype_direct<Src>::get_pytype(); }
  33 #endif
  34 };
  35
  36 template <class Src, class MakeInstance>
  37 struct class_value_wrapper
  38     : to_python_converter<Src,class_value_wrapper<Src,MakeInstance> ,true>
  39 {
  40     static PyObject* convert(Src x)
  41     {
  42         return MakeInstance::execute(x);
  43     }
  44 #ifndef BOOST_PYTHON_NO_PY_SIGNATURES
  45     static PyTypeObject const *get_pytype() { return MakeInstance::get_pytype(); }
  46 #endif
  47 };
  48
  49 }}} // namespace boost::python::objects
  50
  51 #endif // CLASS_WRAPPER_DWA20011221_HPP