Match multiple cases classes in scala

Question

I\'m doing matching against some case classes and would like to handle two of the cases in the same way. Something like this:

abstract class Foo
case class A ext         


        

Answer 1

Well, it doesn't really make sense, does it? B and C are mutually exclusive, so either sb or sc get bound, but you don't know which, so you'd need further selection logic to decide which to use (given that they were bound to a Option[String], not a String). So there's nothing gained over this:

  l match {
    case A() => "A"
    case B(sb) => "B(" + sb + ")"
    case C(sc) => "C(" + sc + ")"
    case _ => "default"
  }

Or this:

  l match {
    case A() => "A"
    case _: B => "B"
    case _: C => "C"
    case _ => "default"
  }