Method call

core/object/object.h:893–902

	template <typename... VarArgs>
	Variant call(const StringName &p_method, VarArgs... p_args) {
		Variant args[sizeof...(p_args) + 1] = { p_args..., Variant() }; // +1 makes sure zero sized arrays are also supported.
		const Variant *argptrs[sizeof...(p_args) + 1];
		for (uint32_t i = 0; i < sizeof...(p_args); i++) {
			argptrs[i] = &args[i];
		}
		Callable::CallError cerr;
		const Variant ret = callp(p_method, sizeof...(p_args) == 0 ? nullptr : (const Variant **)argptrs, sizeof...(p_args), cerr);
		return (cerr.error == Callable::CallError::CALL_OK) ? ret : Variant();
	}

	/// Depending on the boolean, we call either the virtual function _notification_backward or _notification_forward.
	/// - Forward calls subclasses in descending order (e.g. Object -> Node -> Node3D -> extension -> script).