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• Parse-property

Vl-parse-expression-or-dist

Matches expression_or_dist ::= expression [ 'dist' '{' dist_list '}' ].

Signature

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

Arguments

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

Definitions and Theorems

Function: vl-parse-expression-or-dist-fn

(defun vl-parse-expression-or-dist-fn (tokstream config)
  (declare (xargs :stobjs (tokstream)))
  (declare (xargs :guard (vl-loadconfig-p config)))
  (declare (ignorable config))
  (let ((__function__ 'vl-parse-expression-or-dist))
    (declare (ignorable __function__))
    (seq tokstream
         (expr := (vl-parse-expression))
         (when (vl-is-token? :vl-kwd-dist)
               (:= (vl-match))
               (:= (vl-match-token :vl-lcurly))
               (dist := (vl-parse-dist-list))
               (:= (vl-match-token :vl-rcurly)))
         (return (make-vl-exprdist :expr expr
                                   :dist dist)))))

Theorem: vl-parse-expression-or-dist-fails-gracefully

(defthm vl-parse-expression-or-dist-fails-gracefully
  (implies (mv-nth 0 (vl-parse-expression-or-dist))
           (not (mv-nth 1 (vl-parse-expression-or-dist)))))

Theorem: vl-warning-p-of-vl-parse-expression-or-dist

(defthm vl-warning-p-of-vl-parse-expression-or-dist
  (iff (vl-warning-p (mv-nth 0 (vl-parse-expression-or-dist)))
       (mv-nth 0 (vl-parse-expression-or-dist))))

Theorem: vl-parse-expression-or-dist-result

(defthm vl-parse-expression-or-dist-result
 (implies
     (and t)
     (equal (vl-exprdist-p (mv-nth 1 (vl-parse-expression-or-dist)))
            (not (mv-nth 0 (vl-parse-expression-or-dist))))))

Theorem: vl-parse-expression-or-dist-count-strong

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