101 lines
3.7 KiB
Plaintext
101 lines
3.7 KiB
Plaintext
#if !defined(BOOST_PP_IS_ITERATING)
|
|
|
|
// 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 INVOKE_DWA20021122_HPP
|
|
# define INVOKE_DWA20021122_HPP
|
|
|
|
# include <boost/python/detail/prefix.hpp>
|
|
# include <boost/python/detail/preprocessor.hpp>
|
|
# include <boost/python/detail/none.hpp>
|
|
|
|
# include <boost/type_traits/is_member_function_pointer.hpp>
|
|
|
|
# include <boost/preprocessor/iterate.hpp>
|
|
# include <boost/preprocessor/facilities/intercept.hpp>
|
|
# include <boost/preprocessor/repetition/enum_trailing_params.hpp>
|
|
# include <boost/preprocessor/repetition/enum_trailing_binary_params.hpp>
|
|
# include <boost/preprocessor/repetition/enum_binary_params.hpp>
|
|
# include <boost/python/to_python_value.hpp>
|
|
|
|
// This file declares a series of overloaded invoke(...) functions,
|
|
// used to invoke wrapped C++ function (object)s from Python. Each one
|
|
// accepts:
|
|
//
|
|
// - a tag which identifies the invocation syntax (e.g. member
|
|
// functions must be invoked with a different syntax from regular
|
|
// functions)
|
|
//
|
|
// - a pointer to a result converter type, used solely as a way of
|
|
// transmitting the type of the result converter to the function (or
|
|
// an int, if the return type is void).
|
|
//
|
|
// - the "function", which may be a function object, a function or
|
|
// member function pointer, or a defaulted_virtual_fn.
|
|
//
|
|
// - The arg_from_python converters for each of the arguments to be
|
|
// passed to the function being invoked.
|
|
|
|
namespace boost { namespace python { namespace detail {
|
|
|
|
// This "result converter" is really just used as a dispatch tag to
|
|
// invoke(...), selecting the appropriate implementation
|
|
typedef int void_result_to_python;
|
|
|
|
template <bool void_return, bool member>
|
|
struct invoke_tag_ {};
|
|
|
|
// A metafunction returning the appropriate tag type for invoking an
|
|
// object of type F with return type R.
|
|
template <class R, class F>
|
|
struct invoke_tag
|
|
: invoke_tag_<
|
|
is_same<R,void>::value
|
|
, is_member_function_pointer<F>::value
|
|
>
|
|
{
|
|
};
|
|
|
|
# define BOOST_PP_ITERATION_PARAMS_1 \
|
|
(3, (0, BOOST_PYTHON_MAX_ARITY, <boost/python/detail/invoke.hpp>))
|
|
# include BOOST_PP_ITERATE()
|
|
|
|
}}} // namespace boost::python::detail
|
|
|
|
# endif // INVOKE_DWA20021122_HPP
|
|
#else
|
|
|
|
# define N BOOST_PP_ITERATION()
|
|
|
|
template <class RC, class F BOOST_PP_ENUM_TRAILING_PARAMS_Z(1, N, class AC)>
|
|
inline PyObject* invoke(invoke_tag_<false,false>, RC const& rc, F& f BOOST_PP_ENUM_TRAILING_BINARY_PARAMS_Z(1, N, AC, & ac) )
|
|
{
|
|
return rc(f( BOOST_PP_ENUM_BINARY_PARAMS_Z(1, N, ac, () BOOST_PP_INTERCEPT) ));
|
|
}
|
|
|
|
template <class RC, class F BOOST_PP_ENUM_TRAILING_PARAMS_Z(1, N, class AC)>
|
|
inline PyObject* invoke(invoke_tag_<true,false>, RC const&, F& f BOOST_PP_ENUM_TRAILING_BINARY_PARAMS_Z(1, N, AC, & ac) )
|
|
{
|
|
f( BOOST_PP_ENUM_BINARY_PARAMS_Z(1, N, ac, () BOOST_PP_INTERCEPT) );
|
|
return none();
|
|
}
|
|
|
|
template <class RC, class F, class TC BOOST_PP_ENUM_TRAILING_PARAMS_Z(1, N, class AC)>
|
|
inline PyObject* invoke(invoke_tag_<false,true>, RC const& rc, F& f, TC& tc BOOST_PP_ENUM_TRAILING_BINARY_PARAMS_Z(1, N, AC, & ac) )
|
|
{
|
|
return rc( (tc().*f)(BOOST_PP_ENUM_BINARY_PARAMS_Z(1, N, ac, () BOOST_PP_INTERCEPT)) );
|
|
}
|
|
|
|
template <class RC, class F, class TC BOOST_PP_ENUM_TRAILING_PARAMS_Z(1, N, class AC)>
|
|
inline PyObject* invoke(invoke_tag_<true,true>, RC const&, F& f, TC& tc BOOST_PP_ENUM_TRAILING_BINARY_PARAMS_Z(1, N, AC, & ac) )
|
|
{
|
|
(tc().*f)(BOOST_PP_ENUM_BINARY_PARAMS_Z(1, N, ac, () BOOST_PP_INTERCEPT));
|
|
return none();
|
|
}
|
|
|
|
# undef N
|
|
|
|
#endif // BOOST_PP_IS_ITERATING
|