Arc Forumnew | comments | leaders | submitlogin
2 points by almkglor 4119 days ago | link | parent

Not really:

  (fn (niaw (o hmm) . rest)
    (body niaw hmm rest))

  =>

  (fn (niaw . gs42)
    (with (hmm (if gs42 (car gs42) nil)
           gs42 (cdr gs42))
      (let rest gs42
        (body niaw hmm rest))))
It's not at all complicated: just make the last argument take the value of your temporary rest argument. Edit: This is what I did in creating the p-m macro, and it works.

I'm not sure how adding an extra hash would work well if I might pass several different functions, with different optarg names:

  (set p1
    (fn (hmm (o niaw))
      (body hmm niaw)))
  (set p2
    (fn (hmm (o arf))
      (body hmm arf)))
  (set p3
    (fn rest
      (body rest)))
  ((if (something)
       p1
     (something-else)
       p2
       p3)
  1 42)
Edit: My approach appears to be somewhat similar to what pg did in the Scheme version - cref ac-fn, ac-complex-fn, ac-complex-args, ac-complex-opt in ac.scm

Since code is spec (grumble) I think it might be better to follow mostly what pg did, although I dunno, not sure ^^. How can passing in a hash table seamlessly emulate the same functionality while improving performance?