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Rlp-error

Rlp-error-p

Recognizer for rlp-error structures.

Signature
(rlp-error-p x) → *

Definitions and Theorems

Function: rlp-error-p

(defun rlp-error-p (x)
  (declare (xargs :guard t))
  (let ((__function__ 'rlp-error-p))
    (declare (ignorable __function__))
    (and (consp x)
         (cond ((or (atom x) (eq (car x) :no-bytes))
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 0)
                     (b* nil t)))
               ((eq (car x)
                    :fewer-bytes-than-short-length)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 3)
                     (b* ((fragment (std::da-nth 0 (cdr x)))
                          (required (std::da-nth 1 (cdr x)))
                          (available (std::da-nth 2 (cdr x))))
                       (and (byte-listp fragment)
                            (natp required)
                            (natp available)))))
               ((eq (car x)
                    :fewer-bytes-than-length-of-length)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 3)
                     (b* ((fragment (std::da-nth 0 (cdr x)))
                          (required (std::da-nth 1 (cdr x)))
                          (available (std::da-nth 2 (cdr x))))
                       (and (byte-listp fragment)
                            (natp required)
                            (natp available)))))
               ((eq (car x)
                    :fewer-bytes-than-long-length)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 3)
                     (b* ((fragment (std::da-nth 0 (cdr x)))
                          (required (std::da-nth 1 (cdr x)))
                          (available (std::da-nth 2 (cdr x))))
                       (and (byte-listp fragment)
                            (natp required)
                            (natp available)))))
               ((eq (car x)
                    :leading-zeros-in-long-length)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 1)
                     (b* ((fragment (std::da-nth 0 (cdr x))))
                       (byte-listp fragment))))
               ((eq (car x) :non-optimal-short-length)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 1)
                     (b* ((fragment (std::da-nth 0 (cdr x))))
                       (byte-listp fragment))))
               ((eq (car x) :non-optimal-long-length)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 1)
                     (b* ((fragment (std::da-nth 0 (cdr x))))
                       (byte-listp fragment))))
               ((eq (car x) :subtree)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 1)
                     (b* ((error (std::da-nth 0 (cdr x))))
                       (rlp-error-p error))))
               ((eq (car x) :extra-bytes)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 1)
                     (b* ((bytes (std::da-nth 0 (cdr x))))
                       (byte-listp bytes))))
               ((eq (car x) :branch-tree)
                (and (true-listp (cdr x))
                     (eql (len (cdr x)) 1)
                     (b* ((fragment (std::da-nth 0 (cdr x))))
                       (byte-listp fragment))))
               (t (and (eq (car x) :leading-zeros-in-scalar)
                       (and (true-listp (cdr x))
                            (eql (len (cdr x)) 1))
                       (b* ((bytes (std::da-nth 0 (cdr x))))
                         (byte-listp bytes))))))))

Theorem: consp-when-rlp-error-p

(defthm consp-when-rlp-error-p
  (implies (rlp-error-p x) (consp x))
  :rule-classes :compound-recognizer)