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author | Grzegorz Kossakowski <grzegorz.kossakowski@gmail.com> | 2012-09-28 04:46:02 -0700 |
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committer | Grzegorz Kossakowski <grzegorz.kossakowski@gmail.com> | 2012-09-28 04:46:02 -0700 |
commit | 57db28c55c3610f508b07940f7077cb73932418f (patch) | |
tree | 70b62aa01670cfc4b0877327a96e9d434f152418 /test/pending | |
parent | 0614d2f512ad7b1b3885f81d9e6e779f447a6511 (diff) | |
parent | 211c9620ba83de143ea4776f55a3e0c4de11d002 (diff) | |
download | scala-57db28c55c3610f508b07940f7077cb73932418f.tar.gz scala-57db28c55c3610f508b07940f7077cb73932418f.tar.bz2 scala-57db28c55c3610f508b07940f7077cb73932418f.zip |
Merge pull request #1399 from paulp/210-unchecked
Much better unchecked warnings.
Diffstat (limited to 'test/pending')
-rw-r--r-- | test/pending/pos/exhaust_2.scala | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/test/pending/pos/exhaust_2.scala b/test/pending/pos/exhaust_2.scala new file mode 100644 index 0000000000..4f4e47c43b --- /dev/null +++ b/test/pending/pos/exhaust_2.scala @@ -0,0 +1,54 @@ +object ExhaustivityWarnBugReportMinimal { + //sealed is needed for the warning + sealed trait FoundNode[T]/*presence of parameters is irrelevant*/ + // This also causes a warning: + // sealed abstract class FoundNode[T]/*presence of parameters is irrelevant*/ + case class FoundFilter[T](/*presence of parameters is irrelevant*/) extends FoundNode[T] + case class FoundTypeCase[T](/*presence of parameters is irrelevant*/) extends FoundNode[T] + val f: Some[_] = ??? + f match { + case x: Some[t] => //no warning + } + //With these variants, no warnings: + //val v: (Some[Int], FoundNode[_]) = (???, ???) + //val v: (Some[AnyRef], FoundNode[_]) = (???, ???) + //val v: (Some[String], FoundNode[_]) = (???, ???) + + val v: (Some[_], FoundNode[_]) = (???, ???) + //Warning here: + v match { + case (x: Some[t], _: FoundNode[_]) => + } + v match { + case (x: Some[t], _) => + } + + v match { + case (x: Some[_], _) => + } + case class Foo[T]() + + val vp: (Foo[_], FoundNode[_]) = (???, ???) + vp match { + case (x: Foo[_], _) => + } + + //No warning here: + v match { + case (Some(y), _) => + } + + v match { + case (x, _) => + } + + val v2: (Some[_], Int) = (???, ???) + v2 match { + case (x: Some[t], _) => + } + + val v3: (Option[_], FoundNode[_]) = (???, ???) + v match { + case (x: Option[_], _) => + } +} |