A micro library of a single macro, cond-let. cond-let acts like a cond, but adds :let terms that are followed by a binding form (like let).
This allows conditional code to introduce new local symbols; the result is clearer, more linear code, that doesn't make a march for the right margin. Example: (defn ^:private has-necessary-capabilities? "Does the worker have all the capabilities that the job needs?" [state worker-id task] (cond-let :let [job-id (:job-id task)] (nil? job-id) true :let [capabilities (get-in state [:jobs job-id :clockwork/required-capabilities])] (empty? capabilities) true :let [worker-capabilities (get-in state [:workers worker-id :capabilities])] (empty? worker-capabilities) false :else ;; It's ok for the worker to have *more* capabilities than are specified. ;; For each required capability, we need an exact match. (= (select-keys worker-capabilities (keys capabilities)) capabilities))) https://github.com/walmartlabs/cond-let -- Howard M. Lewis Ship Senior Mobile Developer at Walmart Labs (971) 678-5210 http://howardlewisship.com @hlship -- 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.