Scala example source code file (bug1048.scala)

This example Scala source code file (bug1048.scala) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Scala tags/keywords

a, a, bug, e, e, either, left, left, option, right, test, unit, w, w

The Scala bug1048.scala source code

final case class W[A](v: A)

object E {
  def unapply(w: W[Any]): Option[Any] = None
}

object Bug {
  def bug[A](e: Either[W[_], A]) = e match {
    case Left(E(x)) => 1
    case Right(x)   => 2
    case _          => 3
  }
}

object Test {
  def main(args: Array[String]): Unit = {
    println(Bug.bug(Left(W(5))))
    println(Bug.bug(Right(5)))
  }
}