		Search-engine friendly clone of the ACL2 documentation.

Struct-sinfo

Struct-sinfop

Recognizer for struct-sinfo structures.

Signature
(struct-sinfop x) → *

Definitions and Theorems

Function: struct-sinfop

(defun struct-sinfop (x)
  (declare (xargs :guard t))
  (let ((__function__ 'struct-sinfop))
    (declare (ignorable __function__))
    (and (consp x)
         (eq (car x) :struct-sinfo)
         (mbe :logic (and (alistp (cdr x))
                          (equal (strip-cars (cdr x))
                                 '(components)))
              :exec (fty::alist-with-carsp (cdr x)
                                           '(components)))
         (b* ((components (cdr (std::da-nth 0 (cdr x)))))
           (type-mapp components)))))

Theorem: consp-when-struct-sinfop

(defthm consp-when-struct-sinfop
  (implies (struct-sinfop x) (consp x))
  :rule-classes :compound-recognizer)