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Var-info

Var-infop

Recognizer for var-info structures.

Signature
(var-infop x) → *

Definitions and Theorems

Function: var-infop

(defun var-infop (x)
  (declare (xargs :guard t))
  (and (mbe :logic (and (alistp x)
                        (equal (strip-cars x)
                               '(type linkage uid)))
            :exec (fty::alist-with-carsp x '(type linkage uid)))
       (b* ((type (cdr (std::da-nth 0 x)))
            (linkage (cdr (std::da-nth 1 x)))
            (uid (cdr (std::da-nth 2 x))))
         (and (typep type)
              (linkagep linkage)
              (uidp uid)))))

Theorem: consp-when-var-infop

(defthm consp-when-var-infop
  (implies (var-infop x) (consp x))
  :rule-classes :compound-recognizer)