Cons

typesince v0.0-927 clojure.lang/ConsEdit
satisfies ASeq ICloneable ICollection IEmptyableCollection IEquiv IHash IList IMeta INext IPrintWithWriter IReduce ISeq ISeqable ISequential IWithMeta

(Cons. meta first rest __hash)

Source code @ clojurescript:src/main/cljs/cljs/core.cljs
(deftype Cons [meta first rest ^:mutable __hash]
  Object
  (toString [coll]
    (pr-str* coll))
  (equiv [this other]
    (-equiv this other))
  (indexOf [coll x]
    (-indexOf coll x 0))
  (indexOf [coll x start]
    (-indexOf coll x start))
  (lastIndexOf [coll x]
    (-lastIndexOf coll x (count coll)))
  (lastIndexOf [coll x start]
    (-lastIndexOf coll x start))

  IList

  ICloneable
  (-clone [_] (Cons. meta first rest __hash))

  IWithMeta
  (-with-meta [coll new-meta]
    (if (identical? new-meta meta)
      coll
      (Cons. new-meta first rest __hash)))

  IMeta
  (-meta [coll] meta)

  ASeq
  ISeq
  (-first [coll] first)
  (-rest [coll] (if (nil? rest) () rest))

  INext
  (-next [coll]
    (if (nil? rest) nil (seq rest)))

  ICollection
  (-conj [coll o] (Cons. nil o coll nil))

  IEmptyableCollection
  (-empty [coll] (.-EMPTY List))

  ISequential
  IEquiv
  (-equiv [coll other] (equiv-sequential coll other))

  IHash
  (-hash [coll] (caching-hash coll hash-ordered-coll __hash))

  ISeqable
  (-seq [coll] coll)

  IReduce
  (-reduce [coll f] (seq-reduce f coll))
  (-reduce [coll f start] (seq-reduce f start coll)))