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• Token

Token-kind

Get the kind (tag) of a token structure.

Signature

(token-kind x) → kind

Arguments

x — Guard (tokenp x).

Definitions and Theorems

Function: token-kind$inline

(defun token-kind$inline (x)
  (declare (xargs :guard (tokenp x)))
  (let ((__function__ 'token-kind))
    (declare (ignorable __function__))
    (mbe :logic (cond ((or (atom x) (eq (car x) :keyword))
                       :keyword)
                      ((eq (car x) :ident) :ident)
                      ((eq (car x) :const) :const)
                      ((eq (car x) :string) :string)
                      (t :punctuator))
         :exec (car x))))

Theorem: token-kind-possibilities

(defthm token-kind-possibilities
  (or (equal (token-kind x) :keyword)
      (equal (token-kind x) :ident)
      (equal (token-kind x) :const)
      (equal (token-kind x) :string)
      (equal (token-kind x) :punctuator))
  :rule-classes
  ((:forward-chaining :trigger-terms ((token-kind x)))))