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Diffstat (limited to 'src/library/scalax/collection/generic/IterableFactory.scala')
| -rwxr-xr-x | src/library/scalax/collection/generic/IterableFactory.scala | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/library/scalax/collection/generic/IterableFactory.scala b/src/library/scalax/collection/generic/IterableFactory.scala index 264e333ac5..1362e97079 100755 --- a/src/library/scalax/collection/generic/IterableFactory.scala +++ b/src/library/scalax/collection/generic/IterableFactory.scala @@ -8,6 +8,9 @@ trait IterableFactory[CC[A] <: Iterable[A]] { protected def newBuilder[A]: Builder[CC, A] = apply().newBuilder[A].asInstanceOf[Builder[CC, A]] + // can't have an empty here because it is defined in subclass covariant.IterableFactory with type + // CC[Nothing]. This type does not make sense for immutable iterables. + /** Concatenate all the argument lists into a single list. * * @param xss the lists that are to be concatenated |