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Vl-dimension-size

Signature

(vl-dimension-size x) → (mv unresolved-flg size)

Arguments

x — Guard (vl-dimension-p x).

Returns

size — Type (maybe-posp size).

Definitions and Theorems

Function: vl-dimension-size

(defun vl-dimension-size (x)
  (declare (xargs :guard (vl-dimension-p x)))
  (let ((__function__ 'vl-dimension-size))
    (declare (ignorable __function__))
    (vl-dimension-case x :unsized (mv nil nil)
                       :star (mv nil nil)
                       :datatype (mv nil nil)
                       :queue
                       (cond ((not x.maxsize) (mv nil nil))
                             ((vl-expr-resolved-p x.maxsize)
                              (mv nil nil))
                             (t (mv t nil)))
                       :range
                       (if (vl-range-resolved-p x.range)
                           (mv nil (vl-range-size x.range))
                         (mv t nil)))))

Theorem: maybe-posp-of-vl-dimension-size.size

(defthm maybe-posp-of-vl-dimension-size.size
  (b* (((mv ?unresolved-flg ?size)
        (vl-dimension-size x)))
    (maybe-posp size))
  :rule-classes :type-prescription)

Theorem: vl-dimension-size-of-vl-dimension-fix-x

(defthm vl-dimension-size-of-vl-dimension-fix-x
  (equal (vl-dimension-size (vl-dimension-fix x))
         (vl-dimension-size x)))

Theorem: vl-dimension-size-vl-dimension-equiv-congruence-on-x

(defthm vl-dimension-size-vl-dimension-equiv-congruence-on-x
  (implies (vl-dimension-equiv x x-equiv)
           (equal (vl-dimension-size x)
                  (vl-dimension-size x-equiv)))
  :rule-classes :congruence)