Function push_reference

extlibs/sol3/include/sol/sol.hpp:10147–10154

			template <typename T, typename Arg, typename... Args>
			int push_reference(lua_State* L, Arg&& arg, Args&&... args) {
				using use_reference_tag = meta::all<std::is_lvalue_reference<T>,
				     meta::neg<std::is_const<T>>,
				     meta::neg<is_lua_primitive<meta::unqualified_t<T>>>,
				     meta::neg<is_unique_usertype<meta::unqualified_t<T>>>>;
				using Tr = meta::conditional_t<use_reference_tag::value, detail::as_reference_tag, meta::unqualified_t<T>>;
				return stack::push<Tr>(L, std::forward<Arg>(arg), std::forward<Args>(args)...);
			}

		} // namespace stack_detail