object Foo {
  type Trans[T] = T => Option[T]

  def foo[T](t: T, ts: List[Trans[T]]): Option[T] = {
    def aux(acc: T, ts: List[Trans[T]], success: Boolean = false): Option[T] = ts match {
      case t :: rest => t(acc) match {
        case Some(v) => aux(v, rest, success = true)
        case None => aux(acc, rest)
      }
      case _ => Option(acc)
    }
    aux(t, ts)
  }
}