sol2/include/sol/make_reference.hpp
2018-09-27 23:55:09 -07:00

55 lines
1.9 KiB
C++

// sol3
// The MIT License (MIT)
// Copyright (c) 2013-2018 Rapptz, ThePhD and contributors
// Permission is hereby granted, free of charge, to any person obtaining a copy of
// this software and associated documentation files (the "Software"), to deal in
// the Software without restriction, including without limitation the rights to
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
// the Software, and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
// The above copyright notice and this permission notice shall be included in all
// copies or substantial portions of the Software.
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#ifndef SOL_MAKE_REFERENCE_HPP
#define SOL_MAKE_REFERENCE_HPP
#include "reference.hpp"
#include "stack.hpp"
namespace sol {
template <typename R = reference, bool should_pop = !is_stack_based<R>::value, typename T>
R make_reference(lua_State* L, T&& value) {
int backpedal = stack::push(L, std::forward<T>(value));
R r = stack::get<R>(L, -backpedal);
if (should_pop) {
lua_pop(L, backpedal);
}
return r;
}
template <typename T, typename R = reference, bool should_pop = !is_stack_based<R>::value, typename... Args>
R make_reference(lua_State* L, Args&&... args) {
int backpedal = stack::push<T>(L, std::forward<Args>(args)...);
R r = stack::get<R>(L, -backpedal);
if (should_pop) {
lua_pop(L, backpedal);
}
return r;
}
} // namespace sol
#endif // SOL_MAKE_REFERENCE_HPP