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import scala.actors.Reactor
import scala.actors.Actor._
case class MyException(text: String) extends Exception(text)
object A extends Reactor[Any] {
override def exceptionHandler = {
case MyException(text) =>
println("receiver handles exception")
}
def guard(): Boolean =
if (state == 0) {
state = 1
throw MyException("illegal state")
} else
true
var state = 0
def act() {
try {
loop {
react {
case 'hello if guard() =>
println("process")
exit()
}
}
} catch {
case e: Throwable if (!e.isInstanceOf[scala.util.control.ControlThrowable] &&
!e.isInstanceOf[MyException]) =>
e.printStackTrace()
}
}
}
object B extends Reactor[Any] {
def act() {
try {
A.start()
A ! 'hello
A ! 'hello
} catch {
case e: Throwable if !e.isInstanceOf[scala.util.control.ControlThrowable] =>
e.printStackTrace()
}
}
}
object Test {
def main(args: Array[String]) {
B.start()
}
}
|
