On 1 July 2012 16:25, David Nolen <dnolen.li...@gmail.com> wrote: > On Sun, Jul 1, 2012 at 9:04 AM, Vinzent <ru.vinz...@gmail.com> wrote: >> Extend on nil, IIndexed and default (I realize that it's currently >> impossible in cljs). > > IIndexed is the protocol that maps to nth. We already extend IIndexed > to nil. Extending default to IIndexed leads to horrible things like > the following: > > (indexed? 1) ; => true
Ah right, I missed nil in the above. extend-type default was removed, in any case, for IIndexed, see CLJS-234 and commit fda0500ecda. Since my phrasing in my next-to-last message now seems unfortunate to me and I never delivered on the "see below" promise of the third sentence: the perf improvements around that time had to do with satisfies? (which got much faster thanks to a great idea of David's); that in turn made it possible to back out of some unfortunate default implementations of protocols while improving the performance of some of the basic seq / coll functions quite significantly. M. -- 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
