Class lua_value

include/sol/lua_value.hpp:32–137

namespace sol {
	struct lua_value {
	public:
		struct arr : detail::ebco<std::initializer_list<lua_value>> {
		private:
			using base_t = detail::ebco<std::initializer_list<lua_value>>;

		public:
			using base_t::base_t;
		};

	private:
		template <typename T>
		using is_reference_or_lua_value_init_list
		     = meta::any<meta::is_specialization_of<T, std::initializer_list>, std::is_same<T, reference>, std::is_same<T, arr>>;

		template <typename T>
		using is_lua_value_single_constructible = meta::any<std::is_same<T, lua_value>, is_reference_or_lua_value_init_list<T>>;

		static lua_State*& thread_local_lua_state() {
#if SOL_IS_ON(SOL_USE_THREAD_LOCAL)
			static thread_local lua_State* L = nullptr;
#else
			static lua_State* L = nullptr;
#endif
			return L;
		}

		reference ref_value;

	public:
		static void set_lua_state(lua_State* L) {
			thread_local_lua_state() = L;
		}

		template <typename T, meta::disable<is_reference_or_lua_value_init_list<meta::unqualified_t<T>>> = meta::enabler>
		lua_value(lua_State* L_, T&& value) : lua_value(((set_lua_state(L_)), std::forward<T>(value))) {
		}

		template <typename T, meta::disable<is_lua_value_single_constructible<meta::unqualified_t<T>>> = meta::enabler>
		lua_value(T&& value) : ref_value(make_reference(thread_local_lua_state(), std::forward<T>(value))) {
		}

		lua_value(lua_State* L_, std::initializer_list<std::pair<lua_value, lua_value>> il)
		: lua_value([&L_, &il]() {
			set_lua_state(L_);
			return std::move(il);
		}()) {
		}

		lua_value(std::initializer_list<std::pair<lua_value, lua_value>> il) : ref_value(make_reference(thread_local_lua_state(), std::move(il))) {
		}

		lua_value(lua_State* L_, arr il)
		: lua_value([&L_, &il]() {
			set_lua_state(L_);
			return std::move(il);
		}()) {
		}