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• Vl-lex

Vl-lex-main

Signature

(vl-lex-main echars st warnings) 
  → 
(mv successp token-list warnings)

Arguments

echars — Guard (vl-echarlist-p echars).

st — Guard (vl-lexstate-p st).

warnings — Guard (vl-warninglist-p warnings).

Returns

warnings — Type (vl-warninglist-p warnings).

Definitions and Theorems

Function: vl-lex-main

(defun vl-lex-main (echars st warnings)
 (declare (xargs :guard (and (vl-echarlist-p echars)
                             (vl-lexstate-p st)
                             (vl-warninglist-p warnings))))
 (let ((__function__ 'vl-lex-main))
  (declare (ignorable __function__))
  (mbe
      :logic
      (b* (((when (atom echars)) (mv t nil (ok)))
           ((mv first echars warnings)
            (vl-lex-token echars st warnings))
           ((unless first) (mv nil nil warnings))
           ((mv successp rest warnings)
            (vl-lex-main echars st warnings)))
        (mv successp (cons first rest)
            warnings))
      :exec
      (with-local-stobj
           nrev
           (mv-let (successp tokens warnings nrev)
                   (b* (((mv successp nrev warnings)
                         (vl-lex-main-exec echars nrev st warnings))
                        ((mv tokens nrev) (nrev-finish nrev)))
                     (mv successp tokens warnings nrev))
             (mv successp tokens warnings))))))

Theorem: vl-warninglist-p-of-vl-lex-main.warnings

(defthm vl-warninglist-p-of-vl-lex-main.warnings
  (b* (((mv ?successp ?token-list ?warnings)
        (vl-lex-main echars st warnings)))
    (vl-warninglist-p warnings))
  :rule-classes :rewrite)

Theorem: vl-lex-main-exec-redefinition

(defthm vl-lex-main-exec-redefinition
  (equal (vl-lex-main-exec echars acc st warnings)
         (mv-let (successp tokens warnings)
                 (vl-lex-main echars st warnings)
           (mv successp (append acc tokens)
               warnings))))

Theorem: type-of-vl-lex-main-successp

(defthm type-of-vl-lex-main-successp
  (booleanp (mv-nth 0 (vl-lex-main echars st warnings)))
  :rule-classes :type-prescription)

Theorem: true-listp-of-vl-lex-main-tokens

(defthm true-listp-of-vl-lex-main-tokens
  (true-listp (mv-nth 1 (vl-lex-main echars st warnings)))
  :rule-classes :type-prescription)

Theorem: vl-tokenlist-p-of-vl-lex-main

(defthm vl-tokenlist-p-of-vl-lex-main
 (implies
      (and (force (vl-echarlist-p echars))
           (force (vl-lexstate-p st)))
      (vl-tokenlist-p (mv-nth 1 (vl-lex-main echars st warnings)))))

Theorem: vl-tokenlist->etext-of-vl-lex-main

(defthm vl-tokenlist->etext-of-vl-lex-main
  (b* (((mv okp tokens ?warnings)
        (vl-lex-main echars st warnings)))
    (implies (and okp (force (vl-echarlist-p echars))
                  (force (true-listp echars))
                  (force (vl-lexstate-p st)))
             (equal (vl-tokenlist->etext tokens)
                    echars))))