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Filtering-by-name

Vl-delete-imports-by-package

Delete vl-imports by package.

Signature
(vl-delete-imports-by-package names x) → filtered-x
Arguments: names — Names of vl-imports to remove.
Guard (string-listp names).; x — List to filter.
Guard (vl-importlist-p x).
Returns: filtered-x — Type (vl-importlist-p filtered-x).

Definitions and Theorems

Function: vl-delete-imports-by-package

(defun vl-delete-imports-by-package (names x)
 (declare (xargs :guard (and (string-listp names)
                             (vl-importlist-p x))))
 (let ((__function__ 'vl-delete-imports-by-package))
  (declare (ignorable __function__))
  (mbe
   :logic
   (cond ((atom x) nil)
         ((member-equal (vl-import->pkg (car x))
                        (string-list-fix names))
          (vl-delete-imports-by-package names (cdr x)))
         (t (cons (vl-import-fix (car x))
                  (vl-delete-imports-by-package names (cdr x)))))
   :exec
   (b*
    (((when (atom names)) (list-fix x))
     ((when (atom x)) nil)
     ((unless (longer-than-p 10 names))
      (vl-slow-delete-imports-by-package names x))
     (fal (make-lookup-alist names))
     (ans
         (with-local-nrev
              (vl-fast-delete-imports-by-package names fal x nrev)))
     (- (fast-alist-free fal)))
    ans))))

Theorem: vl-importlist-p-of-vl-delete-imports-by-package

(defthm vl-importlist-p-of-vl-delete-imports-by-package
  (b* ((filtered-x (vl-delete-imports-by-package names x)))
    (vl-importlist-p filtered-x))
  :rule-classes :rewrite)

Theorem: vl-delete-imports-by-package-when-atom

(defthm vl-delete-imports-by-package-when-atom
  (implies (atom x)
           (equal (vl-delete-imports-by-package names x)
                  nil)))

Theorem: vl-delete-imports-by-package-of-cons

(defthm vl-delete-imports-by-package-of-cons
  (equal (vl-delete-imports-by-package names (cons a x))
         (if (member-equal (vl-import->pkg a)
                           (string-list-fix names))
             (vl-delete-imports-by-package names x)
           (cons (vl-import-fix a)
                 (vl-delete-imports-by-package names x)))))

Theorem: member-equal-of-vl-delete-imports-by-package

(defthm member-equal-of-vl-delete-imports-by-package
  (iff (member-equal a
                     (vl-delete-imports-by-package names x))
       (and (member-equal a (vl-importlist-fix x))
            (not (member-equal (vl-import->pkg a)
                               (string-list-fix names))))))

Theorem: subsetp-equal-of-vl-delete-imports-by-package

(defthm subsetp-equal-of-vl-delete-imports-by-package
  (subsetp-equal (vl-delete-imports-by-package names x)
                 (vl-importlist-fix x)))

Theorem: vl-delete-imports-by-package-when-atom-of-names

(defthm vl-delete-imports-by-package-when-atom-of-names
  (implies (atom names)
           (equal (vl-delete-imports-by-package names x)
                  (vl-importlist-fix (list-fix x)))))

Theorem: vl-slow-delete-imports-by-package-removal

(defthm vl-slow-delete-imports-by-package-removal
  (equal (vl-slow-delete-imports-by-package names x)
         (vl-delete-imports-by-package names x)))

Theorem: vl-fast-delete-imports-by-package-removal

(defthm vl-fast-delete-imports-by-package-removal
  (equal (vl-fast-delete-imports-by-package names fal x nrev)
         (append nrev
                 (vl-delete-imports-by-package names x))))

Theorem: vl-delete-imports-by-package-of-string-list-fix-names

(defthm vl-delete-imports-by-package-of-string-list-fix-names
  (equal (vl-delete-imports-by-package (string-list-fix names)
                                       x)
         (vl-delete-imports-by-package names x)))

Theorem: vl-delete-imports-by-package-string-list-equiv-congruence-on-names

(defthm
 vl-delete-imports-by-package-string-list-equiv-congruence-on-names
 (implies (str::string-list-equiv names names-equiv)
          (equal (vl-delete-imports-by-package names x)
                 (vl-delete-imports-by-package names-equiv x)))
 :rule-classes :congruence)

Theorem: vl-delete-imports-by-package-of-vl-importlist-fix-x

(defthm vl-delete-imports-by-package-of-vl-importlist-fix-x
  (equal (vl-delete-imports-by-package names (vl-importlist-fix x))
         (vl-delete-imports-by-package names x)))

Theorem: vl-delete-imports-by-package-vl-importlist-equiv-congruence-on-x

(defthm
   vl-delete-imports-by-package-vl-importlist-equiv-congruence-on-x
  (implies (vl-importlist-equiv x x-equiv)
           (equal (vl-delete-imports-by-package names x)
                  (vl-delete-imports-by-package names x-equiv)))
  :rule-classes :congruence)

Subtopics

Vl-fast-delete-imports-by-package