funtional aop

Wrapper.scala

object Wrapper {

  def apply[A,B](before:A=>A,fn:A=>B,after:B=>B):A=>B = {

    def wrapped(a:A):B = {
      after(fn(before(a)))
    }
    return wrapped

  }

}

val bStrInt: ((String, Int)) => (String, Int) = tupleX =>("",0)

  val myFn: ((String, Int)) => String = tupleX => (tupleX._1 + tupleX._2)


  val afterStr: (String) => String = tupleY => tupleY

  def callingUsecase()= {

    apply[(String,Int),(String)](bStrInt,myFn,afterStr)

  }