Funny

trait Closable[A] {
  def closable(a:A):Unit
}

object Ahoy extends App {

	implicit def closable[A <: {def close:Unit}] = new Closable[A] {
		def closable(a:A) {a.close}
	}

	def close[T:Closable](c:T) = {
		implicitly[Closable[T]].closable(c)
	}

 	case class Ahoy(plouf:String) {
 		def close {
 			println("--->" + plouf)
 		}
 	}

 	close(Ahoy("_____"))
}