Hi Paul, It's indeed surprising and at first glance, it looks like a bug but after researching the logs, this let form was introduced in the following commit http://github.com/richhickey/clojure/commit/288f34dbba4a9e643dd7a7f77642d0f0088f95ad with comment "fixed loop with destructuring and inter-binding dependencies".
Thus this commit allows to write (loop [[x & xs] s y xs] ...) but introduces this head-retention behaviour. Right now I can't see how loop can be made to support both cases. Hopefully someone else will. Christophe On Mon, Nov 2, 2009 at 6:49 PM, Paul Mooser <taron...@gmail.com> wrote: > > I'm a little surprised I haven't seen more response on this topic, > since this class of bug (inadvertently holding onto the head of > sequences) is pretty nasty to run into, and is sort of awful to debug. > I'm wondering if there's a different way to write the loop macro so > that it doesn't expand into an outer "let" form. > > > > > -- Professional: http://cgrand.net/ (fr) On Clojure: http://clj-me.cgrand.net/ (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 -~----------~----~----~----~------~----~------~--~---
