Literals

Any lisp value can be turned into a Literal type, which is a type that matches only that value.

(et-is? 4 (Literal 4))
;; -> t
(et-is? "foo" (Literal "foo"))
;; -> t

There is also shorthand syntax for defining literal numbers, strings, and symbols:

(et 4)
;; -> (Literal 4)
(et @foo)
;; -> (Literal 'foo)
(et %bar)
;; -> (Literal "bar")

The types True and Nil are shorthands for (Literal t) and (Literal nil) respectively.

(et True)
;; -> (Literal t)
(et Nil)
;; -> (Literal nil)