I see; then that of course would be the reason. Thanks for the answer.
On Nov 23, 12:24 pm, Rich Hickey <richhic...@gmail.com> wrote:
> On Nov 23, 11:36 am, samppi <rbysam...@gmail.com> wrote:
>
>
>
>
>
> > Variable-length arguments in protocols seem to be supported, but
> > there's just a weird, stateful behavior. Look what happens when you
> > call foo first with one argument twice (it fails both times), then two
> > arguments (it succeeds), then one argument again (it succeeds now
> > too!). Is this a Clojure bug?
>
> > Clojure 1.1.0-alpha-SNAPSHOT
> > user=> (defprotocol P (foo [x & args]))
> > P
> > user=> (deftype T [x])
> > #'user/T
> > user=> (extend ::T P {:foo (fn [x & args] args)})
> > nil
> > user=> (foo (T 42))
> > java.lang.IllegalArgumentException: Wrong number of args passed to:
> > user$eval--12$fn--14$G--1 (NO_SOURCE_FILE:0)
> > user=> (foo (T 42))
> > java.lang.IllegalArgumentException: Wrong number of args passed to:
> > user$eval--12$fn--14$G--1 (NO_SOURCE_FILE:0)
> > user=> (foo (T 42) 1 2)
> > (1 2)
> > user=> (foo (T 42))
> > nil
>
> Varargs in protocols are not yet supported.
>
> Rich
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