gistfile1.scala

package main.scala


trait Enum[T]{ self =>
  type E = this.type => T

  implicit class k(e: E) extends Function0[T]{
    def apply() = e(self)
  }
}

object MainNew {
  sealed trait DayOfWeek
  object DayOfWeek extends Enum[DayOfWeek]{ self =>
    case object Monday extends DayOfWeek
    case object Tuesday extends DayOfWeek
    case object Wednesday extends DayOfWeek
    case object Thursday extends DayOfWeek
    case object Friday extends DayOfWeek
    case object Saturday extends DayOfWeek
    case object Sunday extends DayOfWeek
  }

  def main(args: Array[String]){
    func(_.Monday)
  }
  def func(d: DayOfWeek.E) = {
    println(d())
  }
}




object MainOld {
  sealed trait DayOfWeek
  object DayOfWeek{
    case object Monday extends DayOfWeek
    case object Tuesday extends DayOfWeek
    case object Wednesday extends DayOfWeek
    case object Thursday extends DayOfWeek
    case object Friday extends DayOfWeek
    case object Saturday extends DayOfWeek
    case object Sunday extends DayOfWeek
  }

  def main(args: Array[String]){
    func(DayOfWeek.Monday)
  }
  def func(d: DayOfWeek) = {
    println(d)
  }
}