Enumerations & Method Overload

moverload.scala

scala> :paste
// Entering paste mode (ctrl-D to finish)

object Colours extends Enumeration {
  val Red, Amber, Green = Value
}

object WeekDays extends Enumeration {
  val Mon,Tue,Wed,Thu,Fri = Value
}

object Functions {
  def f(x: Colours.Value)  = "That's a colour"
  def f(x: WeekDays.Value) = "That's a weekday"
}


// Exiting paste mode, now interpreting.

<console>:19: error: double definition:
def f(x: Colours.Value): String at line 18 and
def f(x: WeekDays.Value): String at line 19
have same type after erasure: (x: Enumeration#Value)String
         def f(x: WeekDays.Value) = "That's a weekday"
             ^