On Nov 5, 7:00 pm, MarkSwanson <mark.swanson...@gmail.com> wrote:
> (def
> #^{:arglists '([coll])
> :tag clojure.lang.ISeq
> :doc "Returns a seq of the items after the first. Calls seq on its
> argument. If there are no more items, returns nil."}
> next (fn next [x] (. clojure.lang.RT (next x))))
>
> PROBLEM: seq is not called on its argument.
Ok, I see RT.next(x) is called and the implementation is:
static public ISeq next(Object x){
if(x instanceof ISeq)
return ((ISeq) x).next();
ISeq seq = seq(x);
if(seq == null)
return null;
return seq.next();
}
1. if ISeq, return the next item in the sequence.
2. else, (seq coll)
I propose the docs should read something like this:
(next coll)
:doc "If coll is not a seq, turn coll into a seq. Returns a seq
of the coll after the first item.
If coll has no more items, returns nil."}
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