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Obj-declon

Obj-declonp

Recognizer for obj-declon structures.

Signature
(obj-declonp x) → *

Definitions and Theorems

Function: obj-declonp

(defun obj-declonp (x)
 (declare (xargs :guard t))
 (let ((__function__ 'obj-declonp))
  (declare (ignorable __function__))
  (and
   (consp x)
   (eq (car x) :obj-declon)
   (mbe :logic (and (alistp (cdr x))
                    (equal (strip-cars (cdr x))
                           '(scspec tyspec declor init?)))
        :exec (fty::alist-with-carsp (cdr x)
                                     '(scspec tyspec declor init?)))
   (b* ((scspec (cdr (std::da-nth 0 (cdr x))))
        (tyspec (cdr (std::da-nth 1 (cdr x))))
        (declor (cdr (std::da-nth 2 (cdr x))))
        (init? (cdr (std::da-nth 3 (cdr x)))))
     (and (scspecseqp scspec)
          (tyspecseqp tyspec)
          (obj-declorp declor)
          (initer-optionp init?))))))

Theorem: consp-when-obj-declonp

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