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Var/const-dinfo

Var/const-dinfop

Recognizer for var/const-dinfo structures.

Signature
(var/const-dinfop x) → *

Definitions and Theorems

Function: var/const-dinfop

(defun var/const-dinfop (x)
  (declare (xargs :guard t))
  (let ((__function__ 'var/const-dinfop))
    (declare (ignorable __function__))
    (and (mbe :logic (and (alistp x)
                          (equal (strip-cars x) '(value constp)))
              :exec (fty::alist-with-carsp x '(value constp)))
         (b* ((value (cdr (std::da-nth 0 x)))
              (constp (cdr (std::da-nth 1 x))))
           (and (valuep value)
                (booleanp constp))))))

Theorem: consp-when-var/const-dinfop

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