Fahad/CodeSamples/CompoundTypes.scala
author Christian Urban <christian dot urban at kcl dot ac dot uk>
Thu, 29 Jan 2015 09:05:40 +0000
changeset 53 38cde0214ad5
parent 44 a751aa1ee4f7
permissions -rw-r--r--
added some lemmas, attempted others

package Main

object CompoundClasses {
  trait Cloneable extends java.lang.Cloneable {
    override def clone(): Cloneable = { super.clone(); this }
  }

  trait Resetable {
    def reset: Unit
  }

  def cloneAndReset(obj: Cloneable with Resetable): Cloneable = {
    val cloned = obj.clone()
    obj.reset
    cloned
  }
}