summaryrefslogtreecommitdiff
path: root/test/files/pos/t4853.scala
diff options
context:
space:
mode:
Diffstat (limited to 'test/files/pos/t4853.scala')
-rw-r--r--test/files/pos/t4853.scala12
1 files changed, 12 insertions, 0 deletions
diff --git a/test/files/pos/t4853.scala b/test/files/pos/t4853.scala
new file mode 100644
index 0000000000..c91f2d6b05
--- /dev/null
+++ b/test/files/pos/t4853.scala
@@ -0,0 +1,12 @@
+object Animal {
+ def main(args: Array[String]) { new Animal[Awake].goToSleep }
+}
+
+class Animal[A <: AwakeOrAsleep] {
+ def goToSleep[B >: A <: Awake]: Animal[Asleep] = new Animal[Asleep]
+ def wakeUp[B >: A <: Asleep]: Animal[Awake] = new Animal[Awake]
+}
+
+sealed trait AwakeOrAsleep
+trait Awake extends AwakeOrAsleep
+trait Asleep extends AwakeOrAsleep