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11 points by nex3 4586 days ago | link | parent

I'm very fond of the defcall functionality I added in Anarki - the ability to specify in-Arc the semantics for function calls on arbitrary types. So for example:

  (defcall cons (l i)
    (if (is i 0) (car l)
      ((cdr l) (- i 1))))
It would also work for arbitrary user-defined (via annotate) types as well, of course.