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import scala.actors.{Actor, Exit}
import Actor._
case class MyException(text: String) extends Exception {
override def fillInStackTrace() = this
}
case class MyOtherException(text: String) extends Exception {
override def fillInStackTrace() = this
}
object Master extends Actor {
trapExit = true
def act() {
try {
link(Slave)
Slave.start()
for (i <- 0 until 10) Slave ! A
react {
case Exit(from, reason) =>
println("OK")
}
} catch {
case e: Throwable if !e.isInstanceOf[scala.util.control.ControlThrowable] =>
e.printStackTrace()
}
}
}
object Slave extends Actor {
override def toString = "Slave"
override def exceptionHandler: PartialFunction[Exception, Unit] = {
case MyException(text) =>
case other if !other.isInstanceOf[scala.util.control.ControlThrowable] => super.exceptionHandler(other)
}
def act() {
try {
var cnt = 0
loop {
react {
case A =>
cnt += 1
if (cnt % 2 != 0) throw MyException("problem")
if (cnt == 10) {
throw MyOtherException("unhandled")
}
}
}
} catch {
case e: Throwable if !e.isInstanceOf[scala.util.control.ControlThrowable] &&
!e.isInstanceOf[MyException] &&
!e.isInstanceOf[MyOtherException] =>
e.printStackTrace()
}
}
}
case object A
object Test {
def main(args: Array[String]) {
Master.start()
}
}
|
