		Search-engine friendly clone of the ACL2 documentation.

Ifmerge

Vl-alwayslist-ifmerge

Signature
(vl-alwayslist-ifmerge x warnings) → (mv warnings new-x)
Arguments: x — Guard (vl-alwayslist-p x).; warnings — Guard (vl-warninglist-p warnings).
Returns: warnings — Type (vl-warninglist-p warnings).; new-x — Type (vl-alwayslist-p new-x).

Definitions and Theorems

Function: vl-alwayslist-ifmerge

(defun vl-alwayslist-ifmerge (x warnings)
  (declare (xargs :guard (and (vl-alwayslist-p x)
                              (vl-warninglist-p warnings))))
  (let ((__function__ 'vl-alwayslist-ifmerge))
    (declare (ignorable __function__))
    (b* (((when (atom x)) (mv (ok) x))
         ((mv warnings car)
          (vl-always-ifmerge (car x) warnings))
         ((mv warnings cdr)
          (vl-alwayslist-ifmerge (cdr x)
                                 warnings)))
      (mv warnings (cons car cdr)))))

Theorem: vl-warninglist-p-of-vl-alwayslist-ifmerge.warnings

(defthm vl-warninglist-p-of-vl-alwayslist-ifmerge.warnings
  (b* (((mv ?warnings ?new-x)
        (vl-alwayslist-ifmerge x warnings)))
    (vl-warninglist-p warnings))
  :rule-classes :rewrite)

Theorem: vl-alwayslist-p-of-vl-alwayslist-ifmerge.new-x

(defthm vl-alwayslist-p-of-vl-alwayslist-ifmerge.new-x
  (b* (((mv ?warnings ?new-x)
        (vl-alwayslist-ifmerge x warnings)))
    (vl-alwayslist-p new-x))
  :rule-classes :rewrite)