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Obj-declor

Obj-declorp

Recognizer for obj-declor structures.

Signature
(obj-declorp x) → *

Definitions and Theorems

Function: obj-declorp

(defun obj-declorp (x)
  (declare (xargs :guard t))
  (let ((__function__ 'obj-declorp))
    (declare (ignorable __function__))
    (and (consp x)
         (cond ((or (atom x) (eq (car x) :ident))
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 1)
                     (b* ((get (std::da-nth 0 (cdr x))))
                       (identp get))))
               ((eq (car x) :pointer)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 1)
                     (b* ((decl (std::da-nth 0 (cdr x))))
                       (obj-declorp decl))))
               (t (and (eq (car x) :array)
                       (and (true-listp (cdr x))
                            (eql (len (cdr x)) 2))
                       (b* ((decl (std::da-nth 0 (cdr x)))
                            (size (std::da-nth 1 (cdr x))))
                         (and (obj-declorp decl)
                              (iconst-optionp size)))))))))

Theorem: consp-when-obj-declorp

(defthm consp-when-obj-declorp
  (implies (obj-declorp x) (consp x))
  :rule-classes :compound-recognizer)