map or vector issue as an argument

[real-mj-song]

For some functions, validity of arguments varies according to whether the argument collection is a map or vector. For example, for 'assoc', the key should be a number when the given collection is a vector.

[real-mj-song]

should use a spec structure like

(s/fdef clojure.core/assoc
  :args (s/and 
               ::length-greater-two
               (s/or :map-case (s/cat :check-map (s/nilable map?)
                                                   :dummy any?
                                                   :dummies (s/+ any?))
                       :vector-case (s/cat :check-vector vector?
                                                     :check-integer integer?
                                                     :dummies (s/+ any?)))))