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• Parse-timeunits

Vl-parse-timeunitdecl

Matches 'timeunit' time_literal [ '/' time_literal ] ';' .

Signature

(vl-parse-timeunitdecl &key (tokstream 'tokstream) (config 'config)) 
  → 
(mv errmsg? value new-tokstream)

Arguments

config — Guard (vl-loadconfig-p config).

Definitions and Theorems

Function: vl-parse-timeunitdecl-fn

(defun vl-parse-timeunitdecl-fn (tokstream config)
  (declare (xargs :stobjs (tokstream)))
  (declare (xargs :guard (vl-loadconfig-p config)))
  (declare (ignorable config))
  (let ((__function__ 'vl-parse-timeunitdecl))
    (declare (ignorable __function__))
    (seq tokstream
         (kwd := (vl-match-token :vl-kwd-timeunit))
         (numerator := (vl-parse-timeliteral))
         (when (vl-is-token? :vl-div)
               (:= (vl-match))
               (denominator := (vl-parse-timeliteral)))
         (:= (vl-match-token :vl-semi))
         (return (make-vl-timeunitdecl :loc (vl-token->loc kwd)
                                       :numerator numerator
                                       :denominator denominator)))))

Theorem: vl-parse-timeunitdecl-fails-gracefully

(defthm vl-parse-timeunitdecl-fails-gracefully
  (implies (mv-nth 0 (vl-parse-timeunitdecl))
           (not (mv-nth 1 (vl-parse-timeunitdecl)))))

Theorem: vl-warning-p-of-vl-parse-timeunitdecl

(defthm vl-warning-p-of-vl-parse-timeunitdecl
  (iff (vl-warning-p (mv-nth 0 (vl-parse-timeunitdecl)))
       (mv-nth 0 (vl-parse-timeunitdecl))))

Theorem: vl-parse-timeunitdecl-result

(defthm vl-parse-timeunitdecl-result
  (implies
       (and t)
       (equal (vl-timeunitdecl-p (mv-nth 1 (vl-parse-timeunitdecl)))
              (not (mv-nth 0 (vl-parse-timeunitdecl))))))

Theorem: vl-parse-timeunitdecl-count-strong

(defthm vl-parse-timeunitdecl-count-strong
 (and
     (<= (vl-tokstream-measure
              :tokstream (mv-nth 2 (vl-parse-timeunitdecl)))
         (vl-tokstream-measure))
     (implies (not (mv-nth 0 (vl-parse-timeunitdecl)))
              (< (vl-tokstream-measure
                      :tokstream (mv-nth 2 (vl-parse-timeunitdecl)))
                 (vl-tokstream-measure))))
 :rule-classes ((:rewrite) (:linear)))