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Scopestack

Vl-scopestack->toplevel

Signature
(vl-scopestack->toplevel x) → top
Arguments: x — Guard (vl-scopestack-p x).
Returns: top — Type (vl-scopestack-p top).

Definitions and Theorems

Function: vl-scopestack->toplevel

(defun vl-scopestack->toplevel (x)
  (declare (xargs :guard (vl-scopestack-p x)))
  (let ((__function__ 'vl-scopestack->toplevel))
    (declare (ignorable __function__))
    (vl-scopestack-case x
                        :local (vl-scopestack->toplevel x.super)
                        :otherwise (vl-scopestack-fix x))))

Theorem: vl-scopestack-p-of-vl-scopestack->toplevel

(defthm vl-scopestack-p-of-vl-scopestack->toplevel
  (b* ((top (vl-scopestack->toplevel x)))
    (vl-scopestack-p top))
  :rule-classes :rewrite)

Theorem: vl-scopestack->toplevel-of-vl-scopestack-fix-x

(defthm vl-scopestack->toplevel-of-vl-scopestack-fix-x
  (equal (vl-scopestack->toplevel (vl-scopestack-fix x))
         (vl-scopestack->toplevel x)))

Theorem: vl-scopestack->toplevel-vl-scopestack-equiv-congruence-on-x

(defthm vl-scopestack->toplevel-vl-scopestack-equiv-congruence-on-x
  (implies (vl-scopestack-equiv x x-equiv)
           (equal (vl-scopestack->toplevel x)
                  (vl-scopestack->toplevel x-equiv)))
  :rule-classes :congruence)