diff options
| -rw-r--r-- | src/library/scala/collection/mutable/Queue.scala | 12 | ||||
| -rw-r--r-- | test/files/pos/t6208.scala | 4 |
2 files changed, 16 insertions, 0 deletions
diff --git a/src/library/scala/collection/mutable/Queue.scala b/src/library/scala/collection/mutable/Queue.scala index 2aa19d6cb0..21c3a84699 100644 --- a/src/library/scala/collection/mutable/Queue.scala +++ b/src/library/scala/collection/mutable/Queue.scala @@ -32,6 +32,7 @@ import generic._ */ class Queue[A] extends MutableList[A] + with LinearSeqOptimized[A, Queue[A]] with GenericTraversableTemplate[A, Queue] with Cloneable[Queue[A]] with Serializable @@ -165,6 +166,17 @@ extends MutableList[A] * @return the first element. */ def front: A = head + + + // TODO - Don't override this just for new to create appropriate type.... + override def tail: Queue[A] = { + require(nonEmpty, "tail of empty list") + val tl = new Queue[A] + tl.first0 = first0.tail + tl.last0 = last0 + tl.len = len - 1 + tl + } } diff --git a/test/files/pos/t6208.scala b/test/files/pos/t6208.scala new file mode 100644 index 0000000000..dac571346d --- /dev/null +++ b/test/files/pos/t6208.scala @@ -0,0 +1,4 @@ +object Test { + val col = collection.mutable.Queue(1,2,3) + val WORK: collection.mutable.Queue[Int] = col filterNot (_ % 2 == 0) +} |