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object typerep extends App {
class TypeRep[T] {}
case object IntRep extends TypeRep[Int] {
override def toString = "Int"
}
case object BooleanRep extends TypeRep[Boolean] {
override def toString = "Boolean"
}
case class ListRep[T](elemrep: TypeRep[T]) extends TypeRep[List[T]] {
override def toString = "List"
}
implicit def intRep: TypeRep[Int] = IntRep
implicit def booleanRep: TypeRep[Boolean] = BooleanRep
implicit def listRep[T](implicit elemrep: TypeRep[T]): TypeRep[List[T]] = ListRep(elemrep)
def getType[T](x: T)(implicit rep: TypeRep[T]): TypeRep[T] = rep
println(getType(1))
println(getType(List(1)))
}
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