The form you're looking for is (defn foo [ & [a b :as c]] ...)

On Jul 27, 2:57 pm, Cameron <cpuls...@gmail.com> wrote:
> Hey all, just wondering if this is normal or not. There seems to be
> something weird going on with :as in a functions arg vector.
>
> This little example works as I'd expect...
> user=> (defn foo [[a b :as c]] c)
> #'user/foo
> user=> (foo [1 2])
> [1 2]
>
> But this one does not
> user=> (defn foo [a b :as c] c)
> java.lang.Exception: Unsupported binding form: :as (NO_SOURCE_FILE:11)
> user=>
>
> I would expect to call the second example like (foo 1 2) and have it
> return [1 2].
>
> So if this happens to be expected behavior, is there an idiomatic way
> to do destructure args but also refer to them all as one list?

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