On 28.10.2010, at 21:57, Sean Devlin wrote: > Okay, functor is a good idea but a weak implementation. My complaint > is that it only provides functor behavior for the map function. same > is a higher order function that works on anything, and is based on > protocols. Take a look at the test cases to understand what I'm > talking about.
I agree that a muiltimethod is no longer the best choice for implementing functor-like functionality in Clojure, now that we have protocols. But I think that the mathematical abstraction of a functor is of use (for reasoning about programs) and should be visible as such. "same" seems more concerned about abstracting away implementation details, e.g. between the different map implementations, than with implementing a well-defined mathematical concept. > This should replace the contrib lib, because it provide more > functionality. I'd say that something like same should be used to implement something like fmap. Konrad. -- 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
