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Filtering-by-name

Vl-keep-programs

Signature
(vl-keep-programs names x) → filtered-x
Arguments: names — Names of vl-programs to keep.
Guard (string-listp names).; x — List to filter.
Guard (vl-programlist-p x).
Returns: filtered-x — Type (vl-programlist-p filtered-x).

Definitions and Theorems

Function: vl-keep-programs

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

Theorem: vl-programlist-p-of-vl-keep-programs

(defthm vl-programlist-p-of-vl-keep-programs
  (b* ((filtered-x (vl-keep-programs names x)))
    (vl-programlist-p filtered-x))
  :rule-classes :rewrite)

Theorem: vl-keep-programs-when-atom

(defthm vl-keep-programs-when-atom
  (implies (atom x)
           (equal (vl-keep-programs names x) nil)))

Theorem: vl-keep-programs-of-cons

(defthm vl-keep-programs-of-cons
  (equal (vl-keep-programs names (cons a x))
         (if (member-equal (vl-program->name a)
                           (string-list-fix names))
             (cons (vl-program-fix a)
                   (vl-keep-programs names x))
           (vl-keep-programs names x))))

Theorem: member-equal-of-vl-keep-programs

(defthm member-equal-of-vl-keep-programs
  (iff (member-equal a (vl-keep-programs names x))
       (and (member-equal a (vl-programlist-fix x))
            (member-equal (vl-program->name a)
                          (string-list-fix names)))))

Theorem: subsetp-equal-of-vl-keep-programs

(defthm subsetp-equal-of-vl-keep-programs
  (subsetp-equal (vl-keep-programs names x)
                 (vl-programlist-fix x)))

Theorem: vl-keep-programs-when-atom-of-names

(defthm vl-keep-programs-when-atom-of-names
  (implies (atom names)
           (equal (vl-keep-programs names x) nil)))

Theorem: vl-slow-keep-programs-removal

(defthm vl-slow-keep-programs-removal
  (equal (vl-slow-keep-programs names x)
         (vl-keep-programs names x)))

Theorem: vl-fast-keep-programs-removal

(defthm vl-fast-keep-programs-removal
  (equal (vl-fast-keep-programs names fal x nrev)
         (append nrev (vl-keep-programs names x))))

Theorem: vl-keep-programs-of-string-list-fix-names

(defthm vl-keep-programs-of-string-list-fix-names
  (equal (vl-keep-programs (string-list-fix names)
                           x)
         (vl-keep-programs names x)))

Theorem: vl-keep-programs-string-list-equiv-congruence-on-names

(defthm vl-keep-programs-string-list-equiv-congruence-on-names
  (implies (str::string-list-equiv names names-equiv)
           (equal (vl-keep-programs names x)
                  (vl-keep-programs names-equiv x)))
  :rule-classes :congruence)

Theorem: vl-keep-programs-of-vl-programlist-fix-x

(defthm vl-keep-programs-of-vl-programlist-fix-x
  (equal (vl-keep-programs names (vl-programlist-fix x))
         (vl-keep-programs names x)))

Theorem: vl-keep-programs-vl-programlist-equiv-congruence-on-x

(defthm vl-keep-programs-vl-programlist-equiv-congruence-on-x
  (implies (vl-programlist-equiv x x-equiv)
           (equal (vl-keep-programs names x)
                  (vl-keep-programs names x-equiv)))
  :rule-classes :congruence)

Subtopics

Vl-fast-keep-programs
Vl-slow-keep-programs