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• Verilog-2005-ports

Vl-parse-port-expression

Matches port_expression.

Signature

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

Arguments

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

Definitions and Theorems

Function: vl-parse-port-expression-fn

(defun vl-parse-port-expression-fn (tokstream config)
 (declare (xargs :stobjs (tokstream)))
 (declare (xargs :guard (vl-loadconfig-p config)))
 (declare (ignorable config))
 (let ((__function__ 'vl-parse-port-expression))
  (declare (ignorable __function__))
  (seq
   tokstream
   (when (vl-is-token? :vl-lcurly)
         (:= (vl-match))
         (args := (vl-parse-1+-port-references-separated-by-commas))
         (:= (vl-match-token :vl-rcurly))
         (return (make-vl-nonatom :op :vl-concat
                                  :args args)))
   (ref := (vl-parse-port-reference))
   (return ref))))

Theorem: vl-parse-port-expression-fails-gracefully

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

Theorem: vl-warning-p-of-vl-parse-port-expression

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

Theorem: vl-parse-port-expression-result

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

Theorem: vl-parse-port-expression-count-strong

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