diff options
Diffstat (limited to 'test')
-rw-r--r-- | test/files/pos/t7944.scala | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/test/files/pos/t7944.scala b/test/files/pos/t7944.scala new file mode 100644 index 0000000000..2fe2c5866d --- /dev/null +++ b/test/files/pos/t7944.scala @@ -0,0 +1,24 @@ +class M[+A, +B] + +object Test { + implicit class EitherOps[A, B](self: Either[A, B]) { + def disjunction: M[A, B] = null + } + + def foo = { + val l: Either[Int, Nothing] = Left[Int, Nothing](1) + + var ok = EitherOps(l).disjunction + + val runawayTypeVar = l.disjunction + + // reported bug: + // found : M[Int,B]; required: M[Int,Nothing] + val assign: M[Int, Nothing] = runawayTypeVar + + // variations on the theme, all failed before similarly. + val assign1: M[Int, Nothing] = {val temp = runawayTypeVar; temp} + val assign2: M[Int, String] = runawayTypeVar + val assign3: M[Int, Nothing] = {val temp = Left(1).disjunction; temp} + } +} |