when operator in scala

whenInScala.scala

/**
* A syntactic sugar corresponding to the Lisp's when. Execute the body
* when the pred evaluates to true.
* @param condition A predicate or value that evaluate to a Boolean
* @param block A valid block of scala code
*/
def when (condition : => Boolean)( block : => Unit)
{
  if (condition){ block }
}

//A left associative version from the redditor elbowich
implicit def `when for function0`[A](f: => A) = new {
  def when(cond: Boolean) = if(cond) Some(f) else None
}

Yep! Thanks for the suggestion!
Bye!
Alfredo