macro.clj

(ns active.clojure.macro
  "Macro helpers.")

;; Repeated in numerous projects

(clojure.core/defn cljs-env?
  "Take the &env from a macro, and tell whether we are expanding into cljs."
  [env]
  (boolean (:ns env)))

(defmacro if-cljs
  "Return then if we are generating cljs code and else for Clojure code.
   https://groups.google.com/d/msg/clojurescript/iBY5HaQda4A/w1lAQi9_AwsJ"
  [then else]
  (if (cljs-env? &env) then else))