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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/neg/exhausting.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/neg/exhausting.scala')
-rw-r--r-- | tests/untried/neg/exhausting.scala | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/tests/untried/neg/exhausting.scala b/tests/untried/neg/exhausting.scala new file mode 100644 index 000000000..c00569c91 --- /dev/null +++ b/tests/untried/neg/exhausting.scala @@ -0,0 +1,61 @@ +object Test { + sealed abstract class Foo[T] + case object Bar1 extends Foo[Int] + case object Bar2 extends Foo[String] + case object Bar3 extends Foo[Any] + + def ex1[T](xs: List[T]) = xs match { + case ys: List[_] => "ok" + } + def ex2[T](xx: (Foo[T], Foo[T])) = xx match { + case (Bar1, Bar1) => () + case (_, Bar1) => () + case (_, Bar3) => () + case (_, Bar2) => () + } + def ex3[T](xx: (Foo[T], Foo[T])) = xx match { + case (_: Foo[_], _: Foo[_]) => () + } + + // fails for: ::(_, Nil), ::(_, ::(_, ::(_, _))), ... + def fail1[T](xs: List[T]) = xs match { + case Nil => "ok" + case x :: y :: Nil => "ok" + } + + // fails for: Nil + def fail2[T](xs: List[T]) = xs match { + case _ :: _ => "ok" + } + + // fails for: ::(<not in (2, 1)>, _) + def fail3a(xs: List[Int]) = xs match { + case 1 :: _ => + case 2 :: _ => + case Nil => + } + + // fails for: Bar3 + def fail3[T](x: Foo[T]) = x match { + case Bar1 => "ok" + case Bar2 => "ok" + } + // fails for: (Bar1, Bar2) + // fails for: (Bar1, Bar3) + // fails for: (Bar2, Bar2) + // fails for: (Bar2, Bar1) + def fail4[T <: AnyRef](xx: (Foo[T], Foo[T])) = xx match { + case (Bar1, Bar1) => () + case (Bar2, Bar3) => () + case (Bar3, _) => () + } + // fails for: (Bar1, Bar2) + // fails for: (Bar1, Bar3) + // fails for: (Bar2, Bar1) + // fails for: (Bar2, Bar2) + def fail5[T](xx: (Foo[T], Foo[T])) = xx match { + case (Bar1, Bar1) => () + case (Bar2, Bar3) => () + case (Bar3, _) => () + } +} |