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Diffstat (limited to 'tests/patmat/t3683.scala')
-rw-r--r-- | tests/patmat/t3683.scala | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/tests/patmat/t3683.scala b/tests/patmat/t3683.scala new file mode 100644 index 000000000..44be9d6c6 --- /dev/null +++ b/tests/patmat/t3683.scala @@ -0,0 +1,19 @@ +sealed trait Foo +sealed trait Bar extends Foo +sealed trait W[T >: Bar <: Foo] +sealed case class X() extends W[Foo] +sealed case class Y() extends W[Bar] +sealed case class Z[T >: Bar <: Foo]( + z1: W[T] +) extends W[T] + +object Main { + def func(w: W[Bar]): Int = { + w match { + // Error if I include it, warning if I do not! + // case X() => 2 + case Y() => 1 + case Z(z) => func(z) + } + } +} |