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73 lines
2.1 KiB
C++
73 lines
2.1 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_DISCARD_RESULT_POLICY_HPP_INCLUDED
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#define LUABIND_DISCARD_RESULT_POLICY_HPP_INCLUDED
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#include <luabind/config.hpp>
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#include <luabind/detail/policy.hpp>
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namespace luabind { namespace detail
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{
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struct discard_converter
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{
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template<class T>
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void apply(lua_State*, T) {}
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};
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struct discard_result_policy : conversion_policy<0>
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{
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static void precall(lua_State*, const index_map&) {}
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static void postcall(lua_State*, const index_map&) {}
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struct can_only_convert_from_cpp_to_lua {};
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template<class T, class Direction>
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struct apply
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{
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typedef typename boost::mpl::if_<boost::is_same<Direction, cpp_to_lua>
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, discard_converter
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, can_only_convert_from_cpp_to_lua
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>::type type;
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};
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};
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}}
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namespace luabind
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{
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detail::policy_cons<
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detail::discard_result_policy, detail::null_type> const discard_result = {};
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namespace detail
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{
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inline void ignore_unused_discard_result()
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{
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(void)discard_result;
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}
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}
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}
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#endif // LUABIND_DISCARD_RESULT_POLICY_HPP_INCLUDED
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