diff options
Diffstat (limited to 'tests/untried/pos/t6482.scala')
| -rw-r--r-- | tests/untried/pos/t6482.scala | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/tests/untried/pos/t6482.scala b/tests/untried/pos/t6482.scala new file mode 100644 index 000000000..24ea38e51 --- /dev/null +++ b/tests/untried/pos/t6482.scala @@ -0,0 +1,11 @@ +final class TraversableOnceOps[+A](val collection: TraversableOnce[A]) extends AnyVal { + def reduceLeftOption[B >: A](op: (B, A) => B): Option[B] = + if (collection.isEmpty) None else Some(collection.reduceLeft[B](op)) +} +// error: type arguments [B] do not conform to method reduceLeft's type parameter bounds [B >: A] +// if (collection.isEmpty) None else Some(collection.reduceLeft[B](op)) +// ^ + +class Foo[+A <: AnyRef](val xs: List[A]) extends AnyVal { + def baz[B >: A](x: B): List[B] = x :: xs +} |