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• Abstract-hids

Vl-scopeexpr-p

Recognizes well-formed hierarchical scope expressions.

Signature

(vl-scopeexpr-p x) → bool

Arguments

x — Guard (vl-expr-p x).

Example: foo::bar::a.b[1][2].c.

Definitions and Theorems

Function: vl-scopeexpr-p

(defun vl-scopeexpr-p (x)
  (declare (xargs :guard (vl-expr-p x)))
  (let ((__function__ 'vl-scopeexpr-p))
    (declare (ignorable __function__))
    (b* (((when (vl-atom-p x))
          (mbe :logic (vl-hidexpr-p x)
               :exec (vl-hidname-p x)))
         ((vl-nonatom x) x)
         ((when (vl-op-equiv x.op :vl-scope))
          (and (vl-scopeatom-p (first x.args))
               (vl-scopeexpr-p (second x.args)))))
      (vl-hidexpr-p x))))

Theorem: vl-scopeexpr-p-of-vl-expr-fix-x

(defthm vl-scopeexpr-p-of-vl-expr-fix-x
  (equal (vl-scopeexpr-p (vl-expr-fix x))
         (vl-scopeexpr-p x)))

Theorem: vl-scopeexpr-p-vl-expr-equiv-congruence-on-x

(defthm vl-scopeexpr-p-vl-expr-equiv-congruence-on-x
  (implies (vl-expr-equiv x x-equiv)
           (equal (vl-scopeexpr-p x)
                  (vl-scopeexpr-p x-equiv)))
  :rule-classes :congruence)