2012/2/21 Meikel Brandmeyer <m...@kotka.de> > Hi, > > Am 21.02.2012 um 22:35 schrieb Aaron Cohen: > > > I'd actuallly tried to avoid littering the syntax tree with :constants > > elements anywhere other than where they were needed, but thinking > > about it, there doesn't really seem to be any reason to do that, and > > it does make the implementation much simpler. > > I thought of it as each form carrying the interesting information about > eg. the contained constants with itself. I understand your idea of keeping > things clean. But then there is meta data and maybe this is a very valid > use of it. In fact this information *is* metadata about the form. > > >> (defn processor > >> [pre-fns post-fns] > >> (fn this [form] > >> (let [form (reduce call form pre-fns) > >> form (maybe recursive? update-children form this)] > >> (reduce call form post-fns)))) > > > > This is really neat, setting up the processor up front with the > > processing functions will work much better than my current overloading > > scheme. It's also cool how this provides for a list of pre and post > > fns. I'd initially tried to do this but backed off from it as > > over-complicated. > > Of course this version features a cunning inlineing of comp to achieve > stunning performance characteristics. *coughcough* > > Things should probably be more like this: > > (defn processor > [pre-fns post-fns] > (let [pre (apply comp pre-fns) > post (apply comp post-fns)] > (fn this [form] > (let [form (pre form) > form (maybe recursive? update-children form this)] > (post form))))) > > What about removing comps from the processor function, and let them on the user side?
> Meikel > > -- > 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 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
