import scala.actors._

object T5 extends Application {
  import Actor._

  class Interner extends Actor {
    def act() : Unit = react {
      case s : String => 
	Leader ! Symbol(s).intern
        act()
    }
  }

  val interner1 = new Interner 
  val interner2 = new Interner

  object Leader extends Actor {
    def listen(i : int) : All = {
      val s = i.toString
      Console.println(s)
      interner1 ! s
      interner2 ! s
      val s1 = ?.asInstanceOf[Symbol]
      val s2 = ?.asInstanceOf[Symbol]
      if (!(s1 eq s2)) {
	Console.println("Interned symbols differ!")
	exit(())
      }
      listen(i + 1)
    }
    def act() : Unit = listen(0)
  }

  Leader.link(interner1)
  Leader.link(interner2)
  interner1.start()
  interner2.start()
  Leader.start()
}