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arya/gist:4119194

Created November 20, 2012 16:50
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gistfile1.scala
scala> class Foo extends scala.collection.mutable.Queue[Int] {
|
| def foo = last0
| }
defined class Foo
scala> new Foo
res0: Foo = ()
scala> res0.enqueue(1)
scala> res0.dequeue
res2: Int = 1
scala> res0.length
res3: Int = 0
scala> res0.foo
res4: scala.collection.mutable.LinkedList[Int] = LinkedList(1)
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