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114 lines
3.1 KiB
114 lines
3.1 KiB
// Copyright David Abrahams 2002. |
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// Distributed under the Boost Software License, Version 1.0. (See |
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// accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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#ifndef DEF_DWA200292_HPP |
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# define DEF_DWA200292_HPP |
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# include <boost/python/detail/prefix.hpp> |
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# include <boost/python/object_fwd.hpp> |
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# include <boost/python/make_function.hpp> |
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# include <boost/python/detail/def_helper.hpp> |
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# include <boost/python/detail/overloads_fwd.hpp> |
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# include <boost/python/scope.hpp> |
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# include <boost/python/signature.hpp> |
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# include <boost/python/detail/scope.hpp> |
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namespace boost { namespace python { |
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namespace detail |
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{ |
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namespace error |
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{ |
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// Compile-time error messages |
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template <bool> struct multiple_functions_passed_to_def; |
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template <> struct multiple_functions_passed_to_def<false> { typedef char type; }; |
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} |
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// |
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// def_from_helper -- |
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// |
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// Use a def_helper to define a regular wrapped function in the current scope. |
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template <class F, class Helper> |
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void def_from_helper( |
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char const* name, F const& fn, Helper const& helper) |
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{ |
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// Must not try to use default implementations except with method definitions. |
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typedef typename error::multiple_functions_passed_to_def< |
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Helper::has_default_implementation |
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>::type assertion BOOST_ATTRIBUTE_UNUSED; |
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detail::scope_setattr_doc( |
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name, boost::python::make_function( |
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fn |
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, helper.policies() |
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, helper.keywords()) |
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, helper.doc() |
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); |
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} |
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// |
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// These two overloads discriminate between def() as applied to |
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// regular functions and def() as applied to the result of |
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// BOOST_PYTHON_FUNCTION_OVERLOADS(). The final argument is used to |
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// discriminate. |
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// |
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template <class Fn, class A1> |
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void |
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def_maybe_overloads( |
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char const* name |
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, Fn fn |
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, A1 const& a1 |
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, ...) |
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{ |
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detail::def_from_helper(name, fn, def_helper<A1>(a1)); |
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} |
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template <class StubsT, class SigT> |
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void def_maybe_overloads( |
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char const* name |
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, SigT sig |
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, StubsT const& stubs |
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, detail::overloads_base const*) |
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{ |
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scope current; |
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detail::define_with_defaults( |
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name, stubs, current, detail::get_signature(sig)); |
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} |
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template <class T> |
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object make_function1(T fn, ...) { return make_function(fn); } |
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inline |
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object make_function1(object const& x, object const*) { return x; } |
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} |
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template <class Fn> |
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void def(char const* name, Fn fn) |
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{ |
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detail::scope_setattr_doc(name, detail::make_function1(fn, &fn), 0); |
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} |
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template <class Arg1T, class Arg2T> |
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void def(char const* name, Arg1T arg1, Arg2T const& arg2) |
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{ |
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detail::def_maybe_overloads(name, arg1, arg2, &arg2); |
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} |
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template <class F, class A1, class A2> |
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void def(char const* name, F f, A1 const& a1, A2 const& a2) |
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{ |
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detail::def_from_helper(name, f, detail::def_helper<A1,A2>(a1,a2)); |
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} |
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template <class F, class A1, class A2, class A3> |
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void def(char const* name, F f, A1 const& a1, A2 const& a2, A3 const& a3) |
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{ |
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detail::def_from_helper(name, f, detail::def_helper<A1,A2,A3>(a1,a2,a3)); |
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} |
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}} // namespace boost::python |
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#endif // DEF_DWA200292_HPP
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