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Stripping-functions

Vl-exprdist-strip

Signature
(vl-exprdist-strip x) → new-x
Arguments: x — Guard (vl-exprdist-p x).
Returns: new-x — Type (vl-exprdist-p new-x).

Definitions and Theorems

Function: vl-exprdist-strip

(defun vl-exprdist-strip (x)
  (declare (xargs :guard (vl-exprdist-p x)))
  (let ((__function__ 'vl-exprdist-strip))
    (declare (ignorable __function__))
    (b* (((vl-exprdist x) (vl-exprdist-fix x)))
      (b* ((expr (vl-expr-strip x.expr))
           (dist (vl-distlist-strip x.dist)))
        (change-vl-exprdist x
                            :expr expr
                            :dist dist)))))

Theorem: vl-exprdist-p-of-vl-exprdist-strip

(defthm vl-exprdist-p-of-vl-exprdist-strip
  (b* ((new-x (vl-exprdist-strip x)))
    (vl-exprdist-p new-x))
  :rule-classes :rewrite)

Theorem: vl-exprdist-strip-of-vl-exprdist-fix-x

(defthm vl-exprdist-strip-of-vl-exprdist-fix-x
  (equal (vl-exprdist-strip (vl-exprdist-fix x))
         (vl-exprdist-strip x)))

Theorem: vl-exprdist-strip-vl-exprdist-equiv-congruence-on-x

(defthm vl-exprdist-strip-vl-exprdist-equiv-congruence-on-x
  (implies (vl-exprdist-equiv x x-equiv)
           (equal (vl-exprdist-strip x)
                  (vl-exprdist-strip x-equiv)))
  :rule-classes :congruence)