gistfile1.scala

// A simple trait:

trait CascadingActions {

  implicit def tToActioneerT[T](t: T) = Actioneer(t)

  case class Actioneer[T](tee: T) {
    def withAction(action: (T => Unit)): T = 
      withActions(action)
    def withActions(actions: (T => Unit)*): T = {
      actions foreach (_ (tee))
      tee
    }
  }
}

// Yet with nice properties when you're dealing with
// an object that take a lot of setters, and you really
// wish it supported cascading:

def newStupid = {
  val stupidTemporaryVariable = new StupidObject
  stupidTemporaryVariable setSillyProperty "foo"
  stupidTemporaryVariable setAnotherOne "bar"
  stupidTemporaryVariable // mention it AGAIN here, just so it gets returned
}

// But instead:

def newStupid = new StupidObject withActions(
  _ setSillyProperty "foo",
  _ setAnotherOne "bar")

// Wow!