test/files/jvm/actor-uncaught-exception.scala


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64

@deprecated("Suppress warnings", since="2.11")
object Test {
import scala.actors.{Actor, Exit}

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


  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) =>
            println("OK")
            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() 
  } 
}