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author | Paul Phillips <paulp@improving.org> | 2010-05-06 14:57:56 +0000 |
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committer | Paul Phillips <paulp@improving.org> | 2010-05-06 14:57:56 +0000 |
commit | cb35c38f14f6a53c38966bde8e64dcfa9af17918 (patch) | |
tree | d048820d306d711bafec4d9137696340ec1884e6 | |
parent | 7cb9037e17f9202c4fb43ef7dc0e389e48f2ed49 (diff) | |
download | scala-cb35c38f14f6a53c38966bde8e64dcfa9af17918.tar.gz scala-cb35c38f14f6a53c38966bde8e64dcfa9af17918.tar.bz2 scala-cb35c38f14f6a53c38966bde8e64dcfa9af17918.zip |
Fixed bug in transpose, closes #3397, no review.
-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 + + () + } +} |