Overrode addString in TraversableViewLike.

the Transform-derived traits within view resisted evaluating the entire
sequence on a toString call, but the original view returned from a call
to .view did not. This has a particularly bad result in the case of
Stream, as for instance:

  Stream from 1 view

would enter infiniteloopiland in the repl despite the fact that it
should be doubly resistant to eager evaluation.

Review by prokopec.

1 files changed, 3 insertions, 0 deletions

diff --git a/src/library/scala/collection/TraversableViewLike.scala b/src/library/scala/collection/TraversableViewLike.scala
index 9b5be82dd6..9ff230938e 100644
--- a/src/library/scala/collection/TraversableViewLike.scala
+++ b/src/library/scala/collection/TraversableViewLike.scala
@@ -198,6 +198,9 @@ self =>
     buf.result
   }
 
+  override def addString(b: StringBuilder, start: String, sep: String, end: String): StringBuilder =
+    b append start append "..." append end
+
   override def filter(p: A => Boolean): This = newFiltered(p).asInstanceOf[This]
   override def withFilter(p: A => Boolean): This = newFiltered(p).asInstanceOf[This]
   override def partition(p: A => Boolean): (This, This) = (filter(p), filter(!p(_)))