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author | Martin Odersky <odersky@gmail.com> | 2015-12-20 22:00:29 +0100 |
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committer | Martin Odersky <odersky@gmail.com> | 2015-12-20 22:00:45 +0100 |
commit | e51b8845fb20fe3a4e1c655d4b72e2833906bbc2 (patch) | |
tree | 91bc16867d7a709566d8be80902b3256294cf338 /tests/pos/virtpatmat_exist1.scala | |
parent | 581fee04f808d6f7759f98358e7475e6a58138e3 (diff) | |
download | dotty-e51b8845fb20fe3a4e1c655d4b72e2833906bbc2.tar.gz dotty-e51b8845fb20fe3a4e1c655d4b72e2833906bbc2.tar.bz2 dotty-e51b8845fb20fe3a4e1c655d4b72e2833906bbc2.zip |
The big pending/pos test triage
Diffstat (limited to 'tests/pos/virtpatmat_exist1.scala')
-rw-r--r-- | tests/pos/virtpatmat_exist1.scala | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/tests/pos/virtpatmat_exist1.scala b/tests/pos/virtpatmat_exist1.scala new file mode 100644 index 000000000..6cad017b0 --- /dev/null +++ b/tests/pos/virtpatmat_exist1.scala @@ -0,0 +1,24 @@ +import annotation.unchecked.{ uncheckedVariance=> uV } +import scala.collection.immutable.{ListMap, HashMap, ListSet, HashSet} + +object Test { + class HashMapCollision1[A, +B](var hash: Int, var kvs: ListMap[A, B @uV]) extends HashMap[A, B @uV] + class HashSetCollision1[A](var hash: Int, var ks: ListSet[A]) extends HashSet[A] + + def splitArray[T](ad: Array[Iterable[T]]): Any = + ad(0) match { + case _: HashMapCollision1[_, _] | _: HashSetCollision1[_] => null + } + + // without type ascription for the one in the body of the last flatmap of each alternative, type inference borks on the existentials + // def splitArray[T >: Nothing <: Any](ad: Array[Iterable[T]]): Any = { import OptionMatching._ + // runOrElse(ad.apply(0))(((x1: Iterable[T]) => ( + // or(((x4: Iterable[T]) => one(null)), + // guard(x1.isInstanceOf[Iterable[T] with Test.HashMapCollision1[_,_]], x1.asInstanceOf[Iterable[T] with Test.HashMapCollision1[_,_]]).flatMap(((x2: Iterable[T] with Test.HashMapCollision1[_,_]) => one(x2))), + // guard(x1.isInstanceOf[Test.HashSetCollision1[_]], x1.asInstanceOf[Iterable[T] with Test.HashSetCollision1[_]]).flatMap(((x3: Iterable[T] with Test.HashSetCollision1[_]) => one(x3)))): Option[Any]).orElse( + // (zero: Option[Any]))) + // ) + // } + +} + |