http://dev.clojure.org/jira/browse/CLJ-731 ?
On Tue, Oct 28, 2014 at 2:39 AM, Phillip Lord <phillip.l...@newcastle.ac.uk> wrote: > Reid McKenzie <rmckenzi...@gmail.com> writes: > > This suggests that |apply| is immensely expensive in general, > > and that such arity unrolling even for trivial functions would be a good > > thing. Albeit hard to build. > > > Wonder whether it is macroable. Something like > > > (def new-function > (with-arities [20] > [args] > (blah args) > [args & rest] > (apply args rest))) > > > which gets replaced with > > (fn > ([] > (blah)) > ([a] > (blah a)) > ;;...etc > ([a...t] > (blah a...t)) > ([a...t & rest] > (apply blah a...t rest))) > > > Where a...t are the symbols a to t. Would this help? The function blah, > of course, would know what it's arity is, but this is true for most > higher-order functions (if functions returned their arities, I guess you > could work around this, but they don't). > > So, partial would become something like... > > (def partial > (with-arities [:all] > [args] > (fn [args] (args)) > [args & rest] > (fn [& rst] (apply (list* args rst))))) > > > Just thinking aloud! > > Phil > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > --- > You received this message because you are subscribed to the Google Groups > "Clojure" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to clojure+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
