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Vl-sequence

Vl-sequence-p

Recognizer for vl-sequence structures.

Signature
(vl-sequence-p x) → *

Definitions and Theorems

Function: vl-sequence-p

(defun vl-sequence-p (x)
 (declare (xargs :guard t))
 (let ((__function__ 'vl-sequence-p))
  (declare (ignorable __function__))
  (and
    (consp x)
    (eq (car x) :vl-sequence)
    (mbe :logic (and (alistp (cdr x))
                     (equal (strip-cars (cdr x))
                            '(name ports decls expr loc)))
         :exec (fty::alist-with-carsp (cdr x)
                                      '(name ports decls expr loc)))
    (b* ((name (cdr (std::da-nth 0 (cdr x))))
         (ports (cdr (std::da-nth 1 (cdr x))))
         (decls (cdr (std::da-nth 2 (cdr x))))
         (expr (cdr (std::da-nth 3 (cdr x))))
         (loc (cdr (std::da-nth 4 (cdr x)))))
      (and (stringp name)
           (vl-propportlist-p ports)
           (vl-vardecllist-p decls)
           (vl-propexpr-p expr)
           (vl-location-p loc))))))

Theorem: consp-when-vl-sequence-p

(defthm consp-when-vl-sequence-p
  (implies (vl-sequence-p x) (consp x))
  :rule-classes :compound-recognizer)