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Var/const-sinfo

Var/const-sinfop

Recognizer for var/const-sinfo structures.

Signature
(var/const-sinfop x) → *

Definitions and Theorems

Function: var/const-sinfop

(defun var/const-sinfop (x)
  (declare (xargs :guard t))
  (let ((__function__ 'var/const-sinfop))
    (declare (ignorable __function__))
    (and (consp x)
         (eq (car x) :var/const-sinfo)
         (mbe :logic (and (alistp (cdr x))
                          (equal (strip-cars (cdr x))
                                 '(type constp)))
              :exec (fty::alist-with-carsp (cdr x)
                                           '(type constp)))
         (b* ((type (cdr (std::da-nth 0 (cdr x))))
              (constp (cdr (std::da-nth 1 (cdr x)))))
           (and (typep type) (booleanp constp))))))

Theorem: consp-when-var/const-sinfop

(defthm consp-when-var/const-sinfop
  (implies (var/const-sinfop x) (consp x))
  :rule-classes :compound-recognizer)