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Vl-parse-param-expression

Signature

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

Arguments

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

Definitions and Theorems

Function: vl-parse-param-expression-fn

(defun vl-parse-param-expression-fn (tokstream config)
 (declare (xargs :stobjs (tokstream)))
 (declare (xargs :guard (vl-loadconfig-p config)))
 (declare (ignorable config))
 (let ((__function__ 'vl-parse-param-expression))
  (declare (ignorable __function__))
  (seq
   tokstream
   (when
      (and (vl-is-token? :vl-idtoken)
           (not (vl-parsestate-is-user-defined-type-p
                     (vl-idtoken->name (car (vl-tokstream->tokens)))
                     (vl-tokstream->pstate))))
      (ans := (vl-parse-mintypmax-expression))
      (return ans))
   (return-raw (b* ((backup (vl-tokstream-save))
                    ((mv dt-err dt-val tokstream)
                     (vl-parse-datatype))
                    ((unless dt-err)
                     (mv dt-err dt-val tokstream))
                    (tokstream (vl-tokstream-restore backup)))
                 (seq tokstream
                      (ans := (vl-parse-mintypmax-expression))
                      (return ans)))))))

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

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

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

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

Theorem: vl-parse-param-expression-result

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

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

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