s_mach.datadiff.OptionPatch.scala Maven / Gradle / Ivy

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package s_mach.datadiff

/**
 * A case class for a patch for an Option
 * @tparam A the value type
 * @tparam P the patch type for the value type
 */
sealed trait OptionPatch[+A,+P]

object OptionPatch {
  val noChange = NoChange
  case object NoChange extends OptionPatch[Nothing,Nothing]
  case object SetNone extends OptionPatch[Nothing,Nothing]
  case class SetValue[A](value: A) extends OptionPatch[A,Nothing]
  case class ApplyInnerPatch[P](patch: P) extends OptionPatch[Nothing,P]
}