I do not believe this should be considered a bug. Recur is a special form that rebinds the bindings at the point of recursion with new values. It does not return a value. It does not get evaluated in the normal sense of the word. You cannot type check a value on a valueless expression. Just think about the implications of what a post condition on a recur form means. Even if you wanted to give value semantics to the evaluation of a recur form, there would be no single value it could check against. If you wanted the post condition to only be evaluated on the termination of the loop, or when the recur form is not conditionally present in the expression, then you are essentially asking the impossible for the compiler: it cannot know your intentions better than you do.
On Friday, July 25, 2014 10:12:14 AM UTC-4, Michael O'Keefe wrote: > > Thanks Bob, Steve, and Andy. I was trying to get logged into JIRA to file > the bug report but I seem to be having a heck of a time -- I have a CA and > am signed up at dev.clojure.org but when I try to log into JIRA, it gives > me a nice "System Error" saying " user should not be null!". I've run out > of time to deal with this right now but, Steve, if you get to it before me, > feel free to submit the bug report. > > Thanks all for the helpful discussions! > > Michael > > On Friday, July 25, 2014 7:58:51 AM UTC-6, miner wrote: >> >> I will call it a bug. It's definitely surprising to the user, and >> therefore worthy of a ticket. On first glance, it seems that the fix isn't >> too hard. In core.clj where the macro fn is redefined, we just need to wrap >> the section that handles the post condition either with a loop* or a fn* so >> that the body has the proper recur target. I'll try to make a patch and a >> test. If it works, I'll file a bug with the patch. > > -- 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.
