path: root/test/files/jvm/actor-uncaught-exception.scala

import scala.actors.{Actor, Exit}

class MyException(msg: String) extends Exception(msg) {
  override def fillInStackTrace() = this
}

object Test {

  case object StartError extends Actor {
    def act() {
      try {
      throw new MyException("I don't want to run!")
      } catch {
        case e: Throwable if (!e.isInstanceOf[scala.util.control.ControlThrowable] &&
                              !e.isInstanceOf[MyException]) =>
          e.printStackTrace()
      }
    }
  }

  case object MessageError extends Actor {
    def act() {
      try {
      react {
        case _ => throw new MyException("No message for me!")
      }
      } catch {
        case e: Throwable if !e.isInstanceOf[scala.util.control.ControlThrowable] =>
          e.printStackTrace()
      }
    }
  }

  case object Supervisor extends Actor {
    def act() {
      try {
      trapExit = true
      link(StartError)
      link(MessageError)
      StartError.start()
      MessageError.start()

      Actor.loop {
        react {
          case Exit(actor, reason) =>
            if (actor == StartError)
              MessageError ! 'ping
            else
              exit()
        }
      }
      } catch {
        case e: Throwable if !e.isInstanceOf[scala.util.control.ControlThrowable] =>
          e.printStackTrace()
      }
    }
  }

  def main(args: Array[String]) {
    Supervisor.start()
  }
}