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93 lines
2.6 KiB
C++
93 lines
2.6 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_CONVERT_TO_LUA_HPP_INCLUDED
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#define LUABIND_CONVERT_TO_LUA_HPP_INCLUDED
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#include <luabind/config.hpp>
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#include <luabind/detail/policy.hpp>
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#include <boost/ref.hpp>
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#include <boost/mpl/apply_wrap.hpp>
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namespace luabind { namespace detail
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{
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template<bool IsReferenceWrapper = false>
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struct unwrap_ref
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{
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template<class T>
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static const T& get(const T& r) { return r; }
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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 unwrap_ref<true>
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{
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template<class T>
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static T& get(const boost::reference_wrapper<T>& r) { return r.get(); }
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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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namespace mpl = boost::mpl;
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template<class T>
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void convert_to_lua(lua_State* L, const T& v)
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{
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typedef typename mpl::apply_wrap1<
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unwrap_ref<boost::is_reference_wrapper<T>::value>
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, T
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>::type value_type;
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typename mpl::apply_wrap2<default_policy,value_type,cpp_to_lua>::type converter;
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converter.apply(L, unwrap_ref<boost::is_reference_wrapper<T>::value>::get(v));
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}
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template<int Index, class T, class Policies>
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void convert_to_lua_p(lua_State* L, const T& v, const Policies&)
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{
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typedef typename mpl::apply_wrap1<
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unwrap_ref<boost::is_reference_wrapper<T>::value>
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, T
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>::type value_type;
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typedef typename find_conversion_policy<Index, Policies>::type converter_policy;
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typename mpl::apply_wrap2<converter_policy,value_type,cpp_to_lua>::type converter;
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converter.apply(L, unwrap_ref<boost::is_reference_wrapper<T>::value>::get(v));
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}
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}}
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#endif
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