Simple Scala timer I haven't tried to use since Scala 2.08

timer_obj.scala

object Timer {
  def time[R](block: => R): Pair[Long,_] = {
    val t0 = System.nanoTime()
    val result = block
    val diff = System.nanoTime() - t0
    // Post-timing processing can be added here, maybe
    // an optional argument to this method?
    Pair(diff, result)
    }
}

timers_output.scala

defined module Timer

scala> val result = Timer.time { Thread.sleep(1234); 34 }
result: (Long, Any) = (1235042000,34)

Timer object can accept a block and return the block. No need for annotations ala AOP style code