diff options
Diffstat (limited to 'test/files/neg/t8597.scala')
-rw-r--r-- | test/files/neg/t8597.scala | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/test/files/neg/t8597.scala b/test/files/neg/t8597.scala new file mode 100644 index 0000000000..068e87d91a --- /dev/null +++ b/test/files/neg/t8597.scala @@ -0,0 +1,27 @@ +class Unchecked[C] { + def nowarn[T] = (null: Any) match { case _: Some[T] => } // warn (did not warn due to SI-8597) + + // These warned before. + def warn1[T] = (null: Any) match { case _: T => } // warn + def warn2 = (null: Any) match { case _: Some[String] => } // warn + (null: Any) match { case _: Some[C] => } // warn + + // These must remain without warnings. These are excerpts from + // related tests that are more exhauative. + class C; class D extends C + def okay = (List(new D) : Seq[D]) match { case _: List[C] => case _ => } // nowarn + class B2[A, B] + class A2[X] extends B2[X, String] + def okay2(x: A2[Int]) = x match { case _: B2[Int, _] => true } // nowarn + def okay3(x: A2[Int]) = x match { case _: B2[Int, typeVar] => true } // nowarn + + def warnArray[T] = (null: Any) match { case _: Array[T] => } // warn (did not warn due to SI-8597) + def nowarnArrayC = (null: Any) match { case _: Array[C] => } // nowarn + + def nowarnArrayTypeVar[T] = (null: Any) match { case _: Array[t] => } // nowarn + + def noWarnArrayErasure1 = (null: Any) match {case Some(_: Array[String]) => } // nowarn + def noWarnArrayErasure2 = (null: Any) match {case Some(_: Array[List[_]]) => } // nowarn + def noWarnArrayErasure3 = (null: Any) match {case Some(_: Array[Array[List[_]]]) => } // nowarn + def warnArrayErasure2 = (null: Any) match {case Some(_: Array[Array[List[String]]]) => } // warn +} |