commas.scala

case class C(x: Int)
case class D(i: Int*,
)

object Test extends App {
  C(1) match {
    case C(x @ 1,
    ) => println(x)
    case _ => println(0)
  }

  def f(x: Int, y: Int*) = y.foldLeft(x)(_+_)
  println(f(1,2,
  ))
  println(f(1,List(2, 3): _*))

  println(f(1,List(2, 3): _*,
  ))

  import scala.collection.{mutable, immutable,
  }
  println(mutable.Map(1 -> "one"))

  D(1,2,3) match {
    case D(1, 2, _ @ _*,
    ) => println(1)
  }
}