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Vl-hidexpr-index-count

Signature

(vl-hidexpr-index-count x) → nunres

Arguments

x — Guard (vl-hidexpr-p x).

Returns

nunres — Type (natp nunres).

Definitions and Theorems

Function: vl-hidexpr-index-count

(defun vl-hidexpr-index-count (x)
  (declare (xargs :guard (vl-hidexpr-p x)))
  (let ((__function__ 'vl-hidexpr-index-count))
    (declare (ignorable __function__))
    (vl-hidexpr-case x
                     :end 0
                     :dot (+ (len (vl-hidindex->indices x.first))
                             (vl-hidexpr-index-count x.rest)))))

Theorem: natp-of-vl-hidexpr-index-count

(defthm natp-of-vl-hidexpr-index-count
  (b* ((nunres (vl-hidexpr-index-count x)))
    (natp nunres))
  :rule-classes :type-prescription)

Theorem: vl-hidexpr-index-count-of-vl-hidexpr-fix-x

(defthm vl-hidexpr-index-count-of-vl-hidexpr-fix-x
  (equal (vl-hidexpr-index-count (vl-hidexpr-fix x))
         (vl-hidexpr-index-count x)))

Theorem: vl-hidexpr-index-count-vl-hidexpr-equiv-congruence-on-x

(defthm vl-hidexpr-index-count-vl-hidexpr-equiv-congruence-on-x
  (implies (vl-hidexpr-equiv x x-equiv)
           (equal (vl-hidexpr-index-count x)
                  (vl-hidexpr-index-count x-equiv)))
  :rule-classes :congruence)