I think you have your destructuring backwards. You fn should probably be (fn [{k :keys}] k)
For example, user=> ((fn [{k :keys}] k) {:keys "Awesome"}) "Awesome" On Apr 30, 2:46 pm, russellc <russell.christop...@gmail.com> wrote: > Should this compile? > > (defprotocol P (p [this])) > (defrecord R [k] P (p [{:keys [k]}] k)) > > java.lang.ClassCastException: clojure.lang.PersistentArrayMap cannot > be cast to clojure.lang.Symbol > > -- > 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 > athttp://groups.google.com/group/clojure?hl=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