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kubukoz/Labels.scala

Created May 19, 2021 12:59
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Labels.scala
trait Labels[S] {
def label(v: S): String
}
object Labels {
import scala.deriving.*
import scala.compiletime.*
inline def derived[T](using s: Mirror.SumOf[T]): Labels[T] =
a => summonAll[scala.Tuple.Map[s.MirroredElemLabels, ValueOf]].toList(s.ordinal(a)).asInstanceOf[ValueOf[String]].value
}
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