http://code.google.com/p/clojure/issues/detail?id=93
Paul, you can experiment with the patch if you wish. Christophe Christophe Grand a écrit : > Ok, working on it. > > Rich Hickey a écrit : > >> On Mar 9, 5:04 am, Timothy Pratley <timothyprat...@gmail.com> wrote: >> >> >>> Hi Paul, >>> >>> >>> >>>> I actually mentioned the cycle function in my message, and that's what >>>> I was using, but the original question came up because accessing the >>>> nth item in a list takes linear rather than constant time. >>>> >>>> >>> Apologies for not reading your post carefully. Indeed I think your >>> cyclic-vector solution is great. >>> >>> >>> >>>> I'd be interested to hear how what I was attempting violates the >>>> spirit of clojure. I was trying to work within the bounds of an >>>> existing abstraction, and to implement my changes in such a way as to >>>> not break other things that consume that abstraction. >>>> >>>> >>> Interop with Java is a real strength of Clojure. But doing so is less >>> useful for learning Clojure and more useful for learning Java. Feel >>> free to pursue it, Java interop is certainly not wasted effort/ >>> knowledge. It certainly doesn't violate the spirit of Clojure, my >>> words were intended in relation to writing Euler solutions in a non- >>> Java way. >>> >>> >>> >>>> Incidentally, I don't believe the error I'm getting from proxy has >>>> anything to do with IPersistentVector being an interface, since you >>>> can clearly do: >>>> >>>> (proxy [clojure.lang.IFn] []) >>>> >>>> >>> Indeed you can, but you've really just created an empty object: >>> user=> ((proxy [clojure.lang.IFn] [])) >>> java.lang.UnsupportedOperationException: invoke (NO_SOURCE_FILE:0) >>> >>> Now back to IPersistentVector for a moment: >>> This class extends lots of interfaces. There is a name overlap between >>> some of those Interfaces resulting in a very valid error "Duplicate >>> method name&signature". Not a bug with proxy. >>> >>> >>> >> I really don't know why you are trying to dissuade Paul in all this. >> What he is trying to do is perfectly fine and it does in fact look >> like a bug in proxy. It is not an error to inherit a same-sig method >> from more than one interface, but proxy is probably generating more >> than one stub method, which is the error. >> >> I'm prepping for my London QCon trip and don't have time to chase >> this, but would appreciate it if a contributor could please file an >> issue and look into this. >> >> Thanks, >> >> Rich >> >> >> >> >> > > > -- Professional: http://cgrand.net/ (fr) On Clojure: http://clj-me.blogspot.com/ (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 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 -~----------~----~----~----~------~----~------~--~---
