On Mon, Jun 13, 2011 at 7:37 PM, Matthew Phillips <[email protected]> wrote:
> List<Item> items = initialItems ();
>
> for (Op op : operations)
> {
> if (op.requiresDelete ())
> items.remove (op.indexToDelete ());
>
> if (op.requiresAdd ())
> items.add (op.indexToAdd (), op.newItem ());
> }
One way to transform this is loop-recur.
(loop [items initialitems, ops (seq operations)]
(if-not ops items
(let [op (first ops)]
;; Now you can write the logic pretty much the way you did in java
(cond
(.requiresDelete op) (recur (.remove items (.op
indexToDelete)) (next ops))
(.requiresAdd op) (recur (.add items (.op indexToAdd)
(.op newItem)) (next ops)))))
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