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• Vl-parse-level-symbol

Vl-udp-level-symbol-token->interp

Signature

(vl-udp-level-symbol-token->interp x) → level

Arguments

x — Guard (vl-token-p x).

Returns

level — Type (vl-udpsymbol-p level).

Definitions and Theorems

Function: vl-udp-level-symbol-token->interp

(defun vl-udp-level-symbol-token->interp (x)
 (declare (xargs :guard (vl-token-p x)))
 (declare (xargs :guard (vl-udp-level-symbol-token-p x)))
 (let ((__function__ 'vl-udp-level-symbol-token->interp))
  (declare (ignorable __function__))
  (case
   (vl-token->type x)
   (:vl-inttoken (case (vl-echar->char (car (vl-inttoken->etext x)))
                       (#\0 :vl-udp-0)
                       (#\1 :vl-udp-1)
                       (otherwise (progn$ (impossible) :vl-udp-0))))
   (:vl-idtoken (let ((name (vl-idtoken->name x)))
                  (cond ((member-equal name '("x" "X"))
                         :vl-udp-x)
                        ((member-equal name '("b" "B"))
                         :vl-udp-b)
                        (t (progn$ (impossible) :vl-udp-0)))))
   (:vl-qmark :vl-udp-?)
   (otherwise (progn$ (impossible) :vl-udp-0)))))

Theorem: vl-udpsymbol-p-of-vl-udp-level-symbol-token->interp

(defthm vl-udpsymbol-p-of-vl-udp-level-symbol-token->interp
  (b* ((level (vl-udp-level-symbol-token->interp x)))
    (vl-udpsymbol-p level))
  :rule-classes :rewrite)