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Diffstat (limited to 'src/library/scala/collection/mutable/Queue.scala')
| -rw-r--r-- | src/library/scala/collection/mutable/Queue.scala | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/library/scala/collection/mutable/Queue.scala b/src/library/scala/collection/mutable/Queue.scala index b947fa3cca..8ef5f6aeb7 100644 --- a/src/library/scala/collection/mutable/Queue.scala +++ b/src/library/scala/collection/mutable/Queue.scala @@ -167,6 +167,13 @@ extends MutableList[A] */ def front: A = head + // this method (duplicated from MutableList) must be private for binary compatibility + private final def tailImpl(tl: Queue[A]) { + require(nonEmpty, "tail of empty list") + tl.first0 = first0.tail + tl.len = len - 1 + tl.last0 = if (tl.len == 0) tl.first0 else last0 + } // TODO - Don't override this just for new to create appropriate type.... override def tail: Queue[A] = { |