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Vl-genif

Vl-genif->else

Get the else field from a vl-genif.

Signature
(vl-genif->else x) → else
Arguments: x — Guard (vl-genelement-p x).
Returns: else — Type (vl-genelement-p else).

This is an ordinary field accessor created by defprod.

Definitions and Theorems

Function: vl-genif->else$inline

(defun vl-genif->else$inline (x)
 (declare (xargs :guard (vl-genelement-p x)))
 (declare (xargs :guard (equal (vl-genelement-kind x)
                               :vl-genif)))
 (let ((__function__ 'vl-genif->else))
  (declare (ignorable __function__))
  (mbe
      :logic
      (b* ((x (and (equal (vl-genelement-kind x) :vl-genif)
                   x)))
        (vl-genelement-fix (std::prod-car (std::prod-cdr (cdr x)))))
      :exec (std::prod-car (std::prod-cdr (cdr x))))))

Theorem: vl-genelement-p-of-vl-genif->else

(defthm vl-genelement-p-of-vl-genif->else
  (b* ((else (vl-genif->else$inline x)))
    (vl-genelement-p else))
  :rule-classes :rewrite)

Theorem: vl-genif->else$inline-of-vl-genelement-fix-x

(defthm vl-genif->else$inline-of-vl-genelement-fix-x
  (equal (vl-genif->else$inline (vl-genelement-fix x))
         (vl-genif->else$inline x)))

Theorem: vl-genif->else$inline-vl-genelement-equiv-congruence-on-x

(defthm vl-genif->else$inline-vl-genelement-equiv-congruence-on-x
  (implies (vl-genelement-equiv x x-equiv)
           (equal (vl-genif->else$inline x)
                  (vl-genif->else$inline x-equiv)))
  :rule-classes :congruence)

Theorem: vl-genif->else-when-wrong-kind

(defthm vl-genif->else-when-wrong-kind
  (implies (not (equal (vl-genelement-kind x)
                       :vl-genif))
           (equal (vl-genif->else x)
                  (vl-genelement-fix nil))))