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• Extended-characters

Vl-change-echarlist-locations

Override the locations of characters.

Signature

(vl-change-echarlist-locations x loc) → ans

Arguments

x — Guard (vl-echarlist-p x).

loc — Guard (vl-location-p loc).

Returns

ans — Type (vl-echarlist-p ans).

(vl-change-echarlist-locations x loc) is given a list of extended characters, x, and a location, loc. It changes the location of every character in x to loc.

This funny operation is used in the preprocessor to make `define handling more sensible.

Definitions and Theorems

Function: vl-change-echarlist-locations

(defun vl-change-echarlist-locations (x loc)
  (declare (xargs :guard (and (vl-echarlist-p x)
                              (vl-location-p loc))))
  (let ((__function__ 'vl-change-echarlist-locations))
    (declare (ignorable __function__))
    (if (consp x)
        (cons (change-vl-echar (car x) :loc loc)
              (vl-change-echarlist-locations (cdr x)
                                             loc))
      nil)))

Theorem: vl-echarlist-p-of-vl-change-echarlist-locations

(defthm vl-echarlist-p-of-vl-change-echarlist-locations
  (b* ((ans (vl-change-echarlist-locations x loc)))
    (vl-echarlist-p ans))
  :rule-classes :rewrite)

Theorem: vl-change-echarlist-locations-of-vl-echarlist-fix-x

(defthm vl-change-echarlist-locations-of-vl-echarlist-fix-x
  (equal (vl-change-echarlist-locations (vl-echarlist-fix x)
                                        loc)
         (vl-change-echarlist-locations x loc)))

Theorem: vl-change-echarlist-locations-vl-echarlist-equiv-congruence-on-x

(defthm
   vl-change-echarlist-locations-vl-echarlist-equiv-congruence-on-x
  (implies (vl-echarlist-equiv x x-equiv)
           (equal (vl-change-echarlist-locations x loc)
                  (vl-change-echarlist-locations x-equiv loc)))
  :rule-classes :congruence)

Theorem: vl-change-echarlist-locations-of-vl-location-fix-loc

(defthm vl-change-echarlist-locations-of-vl-location-fix-loc
  (equal (vl-change-echarlist-locations x (vl-location-fix loc))
         (vl-change-echarlist-locations x loc)))

Theorem: vl-change-echarlist-locations-vl-location-equiv-congruence-on-loc

(defthm
  vl-change-echarlist-locations-vl-location-equiv-congruence-on-loc
  (implies (vl-location-equiv loc loc-equiv)
           (equal (vl-change-echarlist-locations x loc)
                  (vl-change-echarlist-locations x loc-equiv)))
  :rule-classes :congruence)