diff options
| -rw-r--r-- | src/library/scala/collection/generic/GenericTraversableTemplate.scala | 2 | ||||
| -rw-r--r-- | test/files/run/bug3397.scala | 7 |
2 files changed, 8 insertions, 1 deletions
diff --git a/src/library/scala/collection/generic/GenericTraversableTemplate.scala b/src/library/scala/collection/generic/GenericTraversableTemplate.scala index ecbfa8c20c..263e1902a0 100644 --- a/src/library/scala/collection/generic/GenericTraversableTemplate.scala +++ b/src/library/scala/collection/generic/GenericTraversableTemplate.scala @@ -108,7 +108,7 @@ trait GenericTraversableTemplate[+A, +CC[X] <: Traversable[X]] extends HasNewBui * the ''n''th column of this $coll. */ def transpose[B](implicit asTraversable: A => /*<:<!!!*/ Traversable[B]): CC[CC[B] @uncheckedVariance] = { - val bs: IndexedSeq[Builder[B, CC[B]]] = asTraversable(head).map(_ => genericBuilder[B]).toIndexedSeq + val bs: IndexedSeq[Builder[B, CC[B]]] = IndexedSeq.fill(asTraversable(head).size)(genericBuilder[B]) for (xs <- this) { var i = 0 for (x <- asTraversable(xs)) { diff --git a/test/files/run/bug3397.scala b/test/files/run/bug3397.scala new file mode 100644 index 0000000000..2c8cbed3ab --- /dev/null +++ b/test/files/run/bug3397.scala @@ -0,0 +1,7 @@ +object Test { + def main(args: Array[String]): Unit = { + val x = Seq(Set(1,2,3),Set(4,5,6),Set(7,8,9)).transpose + + () + } +} |