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Vl-necessary-elements-direct

Gathers the names of all design elements that particular descriptions directly depend on.

Signature

(vl-necessary-elements-direct superiors design) → subs

Arguments

superiors — Names of the superior design elements we're interested in.
    Guard (string-listp superiors).

design — The design.
    Guard (vl-design-p design).

Returns

subs — Names of the sub design elements that are directly needed by these superior elements.
    Type (and (string-listp subs) (setp subs)).

Definitions and Theorems

Function: vl-necessary-elements-direct

(defun vl-necessary-elements-direct (superiors design)
  (declare (xargs :guard (and (string-listp superiors)
                              (vl-design-p design))))
  (let ((__function__ 'vl-necessary-elements-direct))
    (declare (ignorable __function__))
    (vl-collect-dependencies (string-list-fix superiors)
                             (vl-design-downgraph design))))

Theorem: return-type-of-vl-necessary-elements-direct

(defthm return-type-of-vl-necessary-elements-direct
  (b* ((subs (vl-necessary-elements-direct superiors design)))
    (and (string-listp subs) (setp subs)))
  :rule-classes :rewrite)

Theorem: vl-necessary-elements-direct-of-string-list-fix-superiors

(defthm vl-necessary-elements-direct-of-string-list-fix-superiors
  (equal (vl-necessary-elements-direct (string-list-fix superiors)
                                       design)
         (vl-necessary-elements-direct superiors design)))

Theorem: vl-necessary-elements-direct-string-list-equiv-congruence-on-superiors

(defthm
 vl-necessary-elements-direct-string-list-equiv-congruence-on-superiors
 (implies
      (str::string-list-equiv superiors superiors-equiv)
      (equal (vl-necessary-elements-direct superiors design)
             (vl-necessary-elements-direct superiors-equiv design)))
 :rule-classes :congruence)

Theorem: vl-necessary-elements-direct-of-vl-design-fix-design

(defthm vl-necessary-elements-direct-of-vl-design-fix-design
 (equal
     (vl-necessary-elements-direct superiors (vl-design-fix design))
     (vl-necessary-elements-direct superiors design)))

Theorem: vl-necessary-elements-direct-vl-design-equiv-congruence-on-design

(defthm
  vl-necessary-elements-direct-vl-design-equiv-congruence-on-design
 (implies
      (vl-design-equiv design design-equiv)
      (equal (vl-necessary-elements-direct superiors design)
             (vl-necessary-elements-direct superiors design-equiv)))
 :rule-classes :congruence)