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Ident-sinfo

Ident-sinfop

Recognizer for ident-sinfo structures.

Signature
(ident-sinfop x) → *

Definitions and Theorems

Function: ident-sinfop

(defun ident-sinfop (x)
  (declare (xargs :guard t))
  (let ((__function__ 'ident-sinfop))
    (declare (ignorable __function__))
    (and (consp x)
         (cond ((or (atom x) (eq (car x) :var/const))
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 1)
                     (b* ((get (std::da-nth 0 (cdr x))))
                       (var/const-sinfop get))))
               ((eq (car x) :function)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 1)
                     (b* ((get (std::da-nth 0 (cdr x))))
                       (function-sinfop get))))
               (t (and (eq (car x) :struct)
                       (and (true-listp (cdr x))
                            (eql (len (cdr x)) 1))
                       (b* ((get (std::da-nth 0 (cdr x))))
                         (struct-sinfop get))))))))

Theorem: consp-when-ident-sinfop

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