clojure function arity reflector

reflector.clj

(defn no-args?
  "Returns true if f is a sym/var of a function with no arguments. False otherwise."
  [f]
  (cond (and 
          (seq? f)
          (= 'fn* (first f)))
       (empty? (second f))
    (symbol? f)
      (= '([]) (:arglists (meta (resolve f))))
    (var? f)
      (= '([]) (:arglists (meta f)))
    (clojure.test/function? f)
      (= ('[]) (:arglists (meta f))))
    (true? true) false))