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136 lines
4.4 KiB
136 lines
4.4 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 OBJECT_OPERATORS_DWA2002617_HPP |
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# define OBJECT_OPERATORS_DWA2002617_HPP |
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# include <boost/python/detail/prefix.hpp> |
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# include <boost/python/object_core.hpp> |
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# include <boost/python/call.hpp> |
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# include <boost/iterator/detail/enable_if.hpp> |
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# include <boost/mpl/bool.hpp> |
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# include <boost/iterator/detail/config_def.hpp> |
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namespace boost { namespace python { namespace api { |
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template <class X> |
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char is_object_operators_helper(object_operators<X> const*); |
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typedef char (&no_type)[2]; |
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no_type is_object_operators_helper(...); |
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template <class X> X* make_ptr(); |
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template <class L, class R = L> |
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struct is_object_operators |
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{ |
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enum { |
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value |
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= (sizeof(api::is_object_operators_helper(api::make_ptr<L>())) |
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+ sizeof(api::is_object_operators_helper(api::make_ptr<R>())) |
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< 4 |
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) |
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}; |
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typedef mpl::bool_<value> type; |
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}; |
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# if !defined(BOOST_NO_SFINAE) && !defined(BOOST_NO_IS_CONVERTIBLE) |
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template <class L, class R, class T> |
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struct enable_binary |
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: boost::iterators::enable_if<is_object_operators<L,R>, T> |
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{}; |
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# define BOOST_PYTHON_BINARY_RETURN(T) typename enable_binary<L,R,T>::type |
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# else |
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# define BOOST_PYTHON_BINARY_RETURN(T) T |
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# endif |
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template <class U> |
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object object_operators<U>::operator()() const |
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{ |
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object_cref2 f = *static_cast<U const*>(this); |
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return call<object>(f.ptr()); |
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} |
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template <class U> |
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inline |
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object_operators<U>::operator bool_type() const |
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{ |
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object_cref2 x = *static_cast<U const*>(this); |
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int is_true = PyObject_IsTrue(x.ptr()); |
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if (is_true < 0) throw_error_already_set(); |
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return is_true ? &object::ptr : 0; |
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} |
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template <class U> |
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inline bool |
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object_operators<U>::operator!() const |
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{ |
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object_cref2 x = *static_cast<U const*>(this); |
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int is_true = PyObject_IsTrue(x.ptr()); |
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if (is_true < 0) throw_error_already_set(); |
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return !is_true; |
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} |
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# define BOOST_PYTHON_COMPARE_OP(op, opid) \ |
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template <class L, class R> \ |
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BOOST_PYTHON_BINARY_RETURN(object) operator op(L const& l, R const& r) \ |
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{ \ |
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return PyObject_RichCompare( \ |
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object(l).ptr(), object(r).ptr(), opid); \ |
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} |
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# undef BOOST_PYTHON_COMPARE_OP |
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# define BOOST_PYTHON_BINARY_OPERATOR(op) \ |
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BOOST_PYTHON_DECL object operator op(object const& l, object const& r); \ |
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template <class L, class R> \ |
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BOOST_PYTHON_BINARY_RETURN(object) operator op(L const& l, R const& r) \ |
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{ \ |
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return object(l) op object(r); \ |
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} |
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BOOST_PYTHON_BINARY_OPERATOR(>) |
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BOOST_PYTHON_BINARY_OPERATOR(>=) |
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BOOST_PYTHON_BINARY_OPERATOR(<) |
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BOOST_PYTHON_BINARY_OPERATOR(<=) |
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BOOST_PYTHON_BINARY_OPERATOR(==) |
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BOOST_PYTHON_BINARY_OPERATOR(!=) |
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BOOST_PYTHON_BINARY_OPERATOR(+) |
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BOOST_PYTHON_BINARY_OPERATOR(-) |
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BOOST_PYTHON_BINARY_OPERATOR(*) |
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BOOST_PYTHON_BINARY_OPERATOR(/) |
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BOOST_PYTHON_BINARY_OPERATOR(%) |
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BOOST_PYTHON_BINARY_OPERATOR(<<) |
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BOOST_PYTHON_BINARY_OPERATOR(>>) |
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BOOST_PYTHON_BINARY_OPERATOR(&) |
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BOOST_PYTHON_BINARY_OPERATOR(^) |
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BOOST_PYTHON_BINARY_OPERATOR(|) |
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# undef BOOST_PYTHON_BINARY_OPERATOR |
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# define BOOST_PYTHON_INPLACE_OPERATOR(op) \ |
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BOOST_PYTHON_DECL object& operator op(object& l, object const& r); \ |
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template <class R> \ |
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object& operator op(object& l, R const& r) \ |
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{ \ |
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return l op object(r); \ |
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} |
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BOOST_PYTHON_INPLACE_OPERATOR(+=) |
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BOOST_PYTHON_INPLACE_OPERATOR(-=) |
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BOOST_PYTHON_INPLACE_OPERATOR(*=) |
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BOOST_PYTHON_INPLACE_OPERATOR(/=) |
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BOOST_PYTHON_INPLACE_OPERATOR(%=) |
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BOOST_PYTHON_INPLACE_OPERATOR(<<=) |
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BOOST_PYTHON_INPLACE_OPERATOR(>>=) |
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BOOST_PYTHON_INPLACE_OPERATOR(&=) |
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BOOST_PYTHON_INPLACE_OPERATOR(^=) |
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BOOST_PYTHON_INPLACE_OPERATOR(|=) |
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# undef BOOST_PYTHON_INPLACE_OPERATOR |
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}}} // namespace boost::python |
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#include <boost/iterator/detail/config_undef.hpp> |
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#endif // OBJECT_OPERATORS_DWA2002617_HPP
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