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120 lines
2.9 KiB
C++
120 lines
2.9 KiB
C++
// Copyright (c) 2003 Daniel Wallin and Arvid Norberg
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Software.
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
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// ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
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// TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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// PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
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// SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
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// ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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// ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE
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// OR OTHER DEALINGS IN THE SOFTWARE.
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#ifndef LUABIND_OTHER_HPP_INCLUDED
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#define LUABIND_OTHER_HPP_INCLUDED
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// header derived from source code found in Boost.Python
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// Copyright David Abrahams 2002. Permission to copy, use,
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// modify, sell and distribute this software is granted provided this
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// copyright notice appears in all copies. This software is provided
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// "as is" without express or implied warranty, and with no claim as
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// to its suitability for any purpose.
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#include <luabind/config.hpp>
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#include <boost/config.hpp>
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namespace luabind
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{
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template<class T>
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struct other
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{
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typedef T type;
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};
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}
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#ifndef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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namespace luabind { namespace detail
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{
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template<typename T>
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class unwrap_other
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{
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public:
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typedef T type;
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};
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template<typename T>
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class unwrap_other<other<T> >
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{
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public:
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typedef T type;
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};
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}} // namespace luabind::detail
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# else // no partial specialization
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#include <boost/type.hpp>
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namespace luabind { namespace detail
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{
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typedef char (&yes_other_t)[1];
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typedef char (&no_other_t)[2];
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no_other_t is_other_test(...);
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template<typename T>
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yes_other_t is_other_test(type_< other<T> >);
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template<bool wrapped>
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struct other_unwrapper
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{
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template <class T>
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struct apply
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{
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typedef T type;
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};
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};
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template<>
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struct other_unwrapper<true>
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{
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template <class T>
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struct apply
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{
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typedef typename T::type type;
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};
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};
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template<typename T>
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class is_other
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{
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public:
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BOOST_STATIC_CONSTANT(
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bool, value = (
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sizeof(detail::is_other_test(type_<T>()))
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== sizeof(detail::yes_other_t)));
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};
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template <typename T>
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class unwrap_other
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: public detail::other_unwrapper<
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is_other<T>::value
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>::template apply<T>
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{};
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}} // namespace luabind::detail
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#endif // BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
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#endif // LUABIND_OTHER_HPP_INCLUDED
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