test/files/presentation/ping-pong/src/PingPong.scala


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class Ping {

  val pong = new Pong(this)
  
  def name = "ping"

  def loop/*?*/ { poke() }  
    
  def poke/*?*/ { pong./*!*/poke() }
  
  override def toString = name 
}

class Pong(ping: Ping) {

  val name/*?*/ = "pong"
    
  def poke() { ping./*!*/poke() }
  
  override def toString = name
}