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author | Samuel Gruetter <samuel.gruetter@epfl.ch> | 2014-03-12 22:44:33 +0100 |
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committer | Samuel Gruetter <samuel.gruetter@epfl.ch> | 2014-03-12 22:44:33 +0100 |
commit | 9ef5f6817688f814a3450126aa7383b0928e80a0 (patch) | |
tree | 5727a2f7f7fd665cefdb312af2785c692f04377c /tests/untried/pos/t6624.scala | |
parent | 194be919664447631ba55446eb4874979c908d27 (diff) | |
download | dotty-9ef5f6817688f814a3450126aa7383b0928e80a0.tar.gz dotty-9ef5f6817688f814a3450126aa7383b0928e80a0.tar.bz2 dotty-9ef5f6817688f814a3450126aa7383b0928e80a0.zip |
add tests from scala/test/files/{pos,neg}
with explicit Unit return type
Diffstat (limited to 'tests/untried/pos/t6624.scala')
-rw-r--r-- | tests/untried/pos/t6624.scala | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tests/untried/pos/t6624.scala b/tests/untried/pos/t6624.scala new file mode 100644 index 000000000..43bc565cb --- /dev/null +++ b/tests/untried/pos/t6624.scala @@ -0,0 +1,28 @@ +sealed trait KList[+M[_]] + +case class KCons[M[_], +T <: KList[M]]( + tail: T +) extends KList[M] + +case class KNil[M[_]]() extends KList[M] + +object Test { + val klist: KCons[Option, KCons[Option, KCons[Option, KNil[Nothing]]]] = ??? + + // crashes with + // "Exception in thread "main" scala.reflect.internal.Types$TypeError: value _1 is not a member + // of KCons[Option,KCons[Option,KNil[Nothing]]]" + klist match { + case KCons(KCons(KCons(_))) => + } + + // fails with a similar message as an error, rather than a crash. + klist match { + case KCons(KCons(_)) => + } + + // succeeds + klist match { + case KCons(_) => + } +} |