-scala: fixme (!)

WhileApp.scala

var i = 10

class Condition(closure: (=> Unit) => Condition)(cmd: => Unit) {
  def until(condition: => Boolean) = {
    if (condition) {
      cmd
      closure(cmd)
    }
  }
}

def repeat(cmd: => Unit) = new Condition(repeat)(cmd)

repeat {
  println(i)
} until {
  i = i - 1; i > 0
}

Fix

class Repeater(command: => Unit) {
  def until(condition: => Boolean)  {
    command
    if (condition) until(condition)
  }
}

def repeat(command: => Unit) = new Repeater(command)

var x = 0

repeat { x += 1; println(x) } until (x < 10)