wish you could use extractors in arguments in scala

wish.scala

(for { 
  x <- 0 to 10 
} yield (42 -> x)).foldLeft(HashMap[Int,HashSet[Int]]()) { 
  (acc,current) => 
    val (y,z) = current
    acc.updated(y, acc.getOrElse(y, HashSet[Int]()) + z)
}

// I wish the folding function could be defined like this 
// 
// (acc, (y,z)) => acc.updated(y, acc.getOrElse(y, HashSet[Int]()) + z)
//

Just slap a case in there:

(for { 
  x <- 0 to 10 
} yield (42 -> x)).foldLeft(HashMap[Int,HashSet[Int]]()) { 
  case (acc,(y,z)) => 
    acc.updated(y, acc.getOrElse(y, HashSet[Int]()) + z)
}

Ah great. Thanks :)