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Scopestack

Vl-scopestack-find-item/ss

Look up a plain identifier in the current scope stack.

Signature
(vl-scopestack-find-item/ss name ss) → (mv item item-ss)
Arguments: name — Guard (stringp name).; ss — Guard (vl-scopestack-p ss).
Returns: item — The item declaration, if found.
Type (iff (vl-scopeitem-p item) item).; item-ss — The scopestack for the context in which the item was declared.
Type (vl-scopestack-p item-ss).

Definitions and Theorems

Function: vl-scopestack-find-item/ss

(defun
 vl-scopestack-find-item/ss (name ss)
 (declare (xargs :guard (and (stringp name)
                             (vl-scopestack-p ss))))
 (let
  ((__function__ 'vl-scopestack-find-item/ss))
  (declare (ignorable __function__))
  (b*
   (((mv item context-ss pkg-name)
     (vl-scopestack-find-item/context name ss))
    ((unless pkg-name) (mv item context-ss))
    (design (vl-scopestack->design context-ss))
    (pkg
     (and
       design
       (cdr (hons-get pkg-name
                      (vl-design-scope-package-alist-top design)))))
    ((unless pkg) (mv item nil))
    (pkg-ss (vl-scopestack-push pkg (vl-scopestack-init design))))
   (mv item pkg-ss))))

Theorem: return-type-of-vl-scopestack-find-item/ss.item

(defthm return-type-of-vl-scopestack-find-item/ss.item
        (b* (((mv ?item ?item-ss)
              (vl-scopestack-find-item/ss name ss)))
            (iff (vl-scopeitem-p item) item))
        :rule-classes :rewrite)

Theorem: vl-scopestack-p-of-vl-scopestack-find-item/ss.item-ss

(defthm vl-scopestack-p-of-vl-scopestack-find-item/ss.item-ss
        (b* (((mv ?item ?item-ss)
              (vl-scopestack-find-item/ss name ss)))
            (vl-scopestack-p item-ss))
        :rule-classes :rewrite)

Theorem: vl-scopestack-find-item/ss-of-str-fix-name

(defthm vl-scopestack-find-item/ss-of-str-fix-name
        (equal (vl-scopestack-find-item/ss (str-fix name)
                                           ss)
               (vl-scopestack-find-item/ss name ss)))

Theorem: vl-scopestack-find-item/ss-streqv-congruence-on-name

(defthm vl-scopestack-find-item/ss-streqv-congruence-on-name
        (implies (streqv name name-equiv)
                 (equal (vl-scopestack-find-item/ss name ss)
                        (vl-scopestack-find-item/ss name-equiv ss)))
        :rule-classes :congruence)

Theorem: vl-scopestack-find-item/ss-of-vl-scopestack-fix-ss

(defthm
     vl-scopestack-find-item/ss-of-vl-scopestack-fix-ss
     (equal (vl-scopestack-find-item/ss name (vl-scopestack-fix ss))
            (vl-scopestack-find-item/ss name ss)))

Theorem: vl-scopestack-find-item/ss-vl-scopestack-equiv-congruence-on-ss

(defthm
     vl-scopestack-find-item/ss-vl-scopestack-equiv-congruence-on-ss
     (implies (vl-scopestack-equiv ss ss-equiv)
              (equal (vl-scopestack-find-item/ss name ss)
                     (vl-scopestack-find-item/ss name ss-equiv)))
     :rule-classes :congruence)