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sealed trait Fails
case class VarArgs1(a: String*) extends Fails
case class FailsChild2(a: Seq[String]) extends Fails
object FailsTest {
def matchOnVarArgsFirstFails(f: Fails) = {
f match {
case VarArgs1(_) => ???
// BUG: Without this line we should get a non-exhaustive match compiler error.
//case FailsChild2(_) => ???
}
}
def matchOnSeqArgsFirstWorks(f: Fails) = {
f match {
case FailsChild2(_) => ???
// Without this line, the compiler reports a "match may not be exhaustive" error as expected.
// case VarArgs1(_) => ???
}
}
}
sealed trait Works
case class SeqArgs1(a: Seq[String]) extends Works
case class SeqArgs2(a: Seq[String]) extends Works
object WorksTest {
def matcher(f: Works) = {
f match {
case SeqArgs1(_) => ???
// Without this line, the compiler reports a "match may not be exhaustive" error as expected.
// case SeqArgs2(_) => ???
}
}
}
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