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Diffstat (limited to 'src/library/scala/collection/immutable/ListSet.scala')
| -rw-r--r-- | src/library/scala/collection/immutable/ListSet.scala | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/library/scala/collection/immutable/ListSet.scala b/src/library/scala/collection/immutable/ListSet.scala index 0f040b157b..057b68d280 100644 --- a/src/library/scala/collection/immutable/ListSet.scala +++ b/src/library/scala/collection/immutable/ListSet.scala @@ -99,9 +99,9 @@ class ListSet[A] extends Set[A] * so we take the easy way out and add ourselves and the argument to * a new builder. */ - override def ++(xs: TraversableOnce[A]): ListSet[A] = + override def ++(xs: GenTraversableOnce[A]): ListSet[A] = if (xs.isEmpty) this - else new ListSet.ListSetBuilder(this) ++= xs result + else new ListSet.ListSetBuilder(this) ++= xs.seq result private[ListSet] def unchecked_+(e: A): ListSet[A] = new Node(e) private[ListSet] def unchecked_outer: ListSet[A] = |