On Fri, Jun 18, 2010 at 12:24 AM, Antony Blakey <antony.bla...@gmail.com>wrote:
>
> That's fine for fact, but as a consumer of library functions, how do I know
> when I should pass in bigints? How do I know when an intermediate value, for
> my particular combination of parameter values, is going to overflow?
>
If the library isn't communicating that to you isn't that just a broken API
that you don't want to participate in? Tag information on arglists is
available:
(defn foo [^BigInteger a b ^BigInteger c]
(+ a b))
(print (map (fn [xs] (map meta xs)) (:arglists (meta #'foo))))
;(({:tag BigInteger} nil {:tag BigInteger}))
IDEs can easily (and should) expose this.
David
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