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Scopestack

Vl-scopestack-nesting-level

Signature
(vl-scopestack-nesting-level x) → level
Arguments: x — Guard (vl-scopestack-p x).
Returns: level — Type (natp level).

Definitions and Theorems

Function: vl-scopestack-nesting-level

(defun vl-scopestack-nesting-level (x)
  (declare (xargs :guard (vl-scopestack-p x)))
  (let ((__function__ 'vl-scopestack-nesting-level))
    (declare (ignorable __function__))
    (vl-scopestack-case
         x
         :null 0
         :global 1
         :local (+ 1
                   (vl-scopestack-nesting-level x.super)))))

Theorem: natp-of-vl-scopestack-nesting-level

(defthm natp-of-vl-scopestack-nesting-level
  (b* ((level (vl-scopestack-nesting-level x)))
    (natp level))
  :rule-classes :rewrite)

Theorem: vl-scopestack-nesting-level-of-vl-scopestack-fix-x

(defthm vl-scopestack-nesting-level-of-vl-scopestack-fix-x
  (equal (vl-scopestack-nesting-level (vl-scopestack-fix x))
         (vl-scopestack-nesting-level x)))

Theorem: vl-scopestack-nesting-level-vl-scopestack-equiv-congruence-on-x

(defthm
    vl-scopestack-nesting-level-vl-scopestack-equiv-congruence-on-x
  (implies (vl-scopestack-equiv x x-equiv)
           (equal (vl-scopestack-nesting-level x)
                  (vl-scopestack-nesting-level x-equiv)))
  :rule-classes :congruence)