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• Verilog-2005-ports

Vl-parse-1+-ports-separated-by-commas

Matches port { ',' port }, possibly producing blank ports!

Signature

(vl-parse-1+-ports-separated-by-commas &key (tokstream 'tokstream) 
                                       (config 'config)) 
 
  → 
(mv errmsg? value new-tokstream)

Arguments

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

Definitions and Theorems

Function: vl-parse-1+-ports-separated-by-commas-fn

(defun vl-parse-1+-ports-separated-by-commas-fn (tokstream config)
  (declare (xargs :stobjs (tokstream)))
  (declare (xargs :guard (vl-loadconfig-p config)))
  (declare (ignorable config))
  (let ((__function__ 'vl-parse-1+-ports-separated-by-commas))
    (declare (ignorable __function__))
    (seq tokstream
         (when (vl-is-token? :vl-rparen)
               (loc := (vl-current-loc))
               (return (list (make-vl-regularport :name nil
                                                  :expr nil
                                                  :loc loc))))
         (when (vl-is-token? :vl-comma)
               (loc := (vl-current-loc))
               (:= (vl-match))
               (rest := (vl-parse-1+-ports-separated-by-commas))
               (return (cons (make-vl-regularport :name nil
                                                  :expr nil
                                                  :loc loc)
                             rest)))
         (first := (vl-parse-nonnull-port))
         (when (vl-is-token? :vl-comma)
               (:= (vl-match))
               (rest := (vl-parse-1+-ports-separated-by-commas)))
         (return (cons first rest)))))

Theorem: vl-parse-1+-ports-separated-by-commas-fails-gracefully

(defthm vl-parse-1+-ports-separated-by-commas-fails-gracefully
  (implies (mv-nth 0
                   (vl-parse-1+-ports-separated-by-commas))
           (not (mv-nth 1
                        (vl-parse-1+-ports-separated-by-commas)))))

Theorem: vl-warning-p-of-vl-parse-1+-ports-separated-by-commas

(defthm vl-warning-p-of-vl-parse-1+-ports-separated-by-commas
 (iff
     (vl-warning-p (mv-nth 0
                           (vl-parse-1+-ports-separated-by-commas)))
     (mv-nth 0
             (vl-parse-1+-ports-separated-by-commas))))

Theorem: vl-parse-1+-ports-separated-by-commas-result

(defthm vl-parse-1+-ports-separated-by-commas-result
 (implies
  (and t)
  (vl-portlist-p (mv-nth 1
                         (vl-parse-1+-ports-separated-by-commas)))))

Theorem: vl-parse-1+-ports-separated-by-commas-true-listp

(defthm vl-parse-1+-ports-separated-by-commas-true-listp
  (true-listp (mv-nth 1
                      (vl-parse-1+-ports-separated-by-commas)))
  :rule-classes :type-prescription)

Theorem: vl-parse-1+-ports-separated-by-commas-count-weak

(defthm vl-parse-1+-ports-separated-by-commas-count-weak
 (<=
   (vl-tokstream-measure
        :tokstream (mv-nth 2
                           (vl-parse-1+-ports-separated-by-commas)))
   (vl-tokstream-measure))
 :rule-classes ((:rewrite) (:linear)))