package net.tz.spss

sealed trait SpssValue

sealed trait Missing extends SpssValue

abstract class Value[T] extends SpssValue {

  def v: T

}

abstract class MissingValue[T] extends Value[T]

case class StringValue(v: String) extends Value[String]

case class DoubleValue(v: Double) extends Value[Double]

case object SystemMissing extends Missing

// ??? case class MissingString(v: String) extends MissingValue[String]

case class MissingDouble(v: Double) extends MissingValue[Double]