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Exhaustive check during pattern matching on Coproduct #103

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a-nigredo opened this issue Dec 5, 2017 · 0 comments

a-nigredo commented Dec 5, 2017 •

edited by peterneyens

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It would be nice to have compilation error if there is a pattern matching on not all injected values.
e.g.

type Primitive = Cop[String :: Boolean :: TNil
object Primitive {
  val Str= Cop.Inject[String, Primitive]
  val Bool= Cop.Inject[Boolean, Primitive]
}
def print(v: Primitive) =
  v match {
    case Str(v) => println(v)
  }

should throw compilation error since there is not Bool case

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