Okay, thanks. I see that it has something to do with laziness, but I guess I need to play with some code before I really get it. In my example interface, rest() could return something that is lazy, something that doesn't decide if it's empty or has a first element, until you call one of it's methods. Or it could return a simple cons cell. But maybe using it for both things leads to an ugly implementation somewhere.
Rob --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
