On Sun, Feb 22, 2009 at 4:07 PM, jim <[email protected]> wrote:
>
> In some old code, I did something like:
>
> (with-meta (concat [1 3] [8 4])
> {:tail true}))
>
> which now fails. I believe it's because the result of concat is now
> some kind of reference.
>
> Does anyone have any advice on a workaround?
LazySeq extends AFn, so you can't change the metadata once the object
exists. However, Seq's still accept meta-data, so:
(with-meta (seq (concat [1 3] [8 4]))
{:tail true})
--Chouser
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