Looking at the documentation for keywords under https://clojure.org/reference/reader#_literals there is no mention for the syntax for namespace aliased keywords, and this is very important it you want to manage your keywords for clojure.spec.
I only know about it because google turned up some clojure.spec notes on it, but it seems it should be in the mainline clojure docs too. I certainly didn't know about it until today. Say we have this namespace: (ns foo (:require [clojure.spec :as s])) (s/def ::specific-even-number #(= 1000 %)) And then in the user namespace: (ns user) (require '[clojure.spec :as s]) (require '[foo :as f]) (s/valid? :f/specific-even-number 1000) ;; Exception Unable to resolve spec: :f/specific-even-number clojure.spec/ reg-resolve! (spec.clj:70) What is needed is the extra colon, as if we're saying use the current namespace, only that isn't what happens. (s/valid? ::f/specific-even-number 1000) ;; true Perhaps the clojure docs are correctly stating the use of this kind of keyword my interpretation is just flawed, but it certainly wasn't obvious to me, and nobody in my team knew that we could do this either. The result was some namespace unfriendly code to avoid typing in long namespaces on clojure spec keywords. Now that we know ::ns-alias/keyword we can do better on our clojure.spec use. (The above tested in clojure 1.8.0). While I'm here, I want to say that I am _deeply_ disappointed that clojure.spec def/fdef forms don't support documentation strings. I upvoted the issue in the bug tracker, but there were only 27 votes including mine when I checked on this half-year-plus old issue. http://dev.clojure.org/jira/browse/CLJ-1965 -- 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.
