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• Parse-datatypes

Vl-parse-variable-decl-assignment

Signature

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

Arguments

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

Definitions and Theorems

Function: vl-parse-variable-decl-assignment-fn

(defun vl-parse-variable-decl-assignment-fn (tokstream config)
 (declare (xargs :stobjs (tokstream)))
 (declare (xargs :guard (vl-loadconfig-p config)))
 (declare (ignorable config))
 (let ((__function__ 'vl-parse-variable-decl-assignment))
  (declare (ignorable __function__))
  (seq
   tokstream
   (id := (vl-match-token :vl-idtoken))
   (when (vl-is-token? :vl-lbrack)
         (dims := (vl-parse-0+-variable-dimensions)))
   (when
    (vl-is-token? :vl-equalsign)
    (:= (vl-match))
    (expr := (vl-parse-expression))
    (when
     (or (vl-is-token? :vl-kwd-new)
         (and (vl-is-token? :vl-scope)
              (vl-lookahead-is-token?
                   :vl-kwd-new (cdr (vl-tokstream->tokens)))))
     (return-raw
      (vl-parse-error
          "Implement support for 'new' in struct/union members!"))))
   (return (make-vl-vardeclassign :id (vl-idtoken->name id)
                                  :dims dims
                                  :expr expr)))))

Theorem: vl-parse-variable-decl-assignment-fails-gracefully

(defthm vl-parse-variable-decl-assignment-fails-gracefully
  (implies (mv-nth 0 (vl-parse-variable-decl-assignment))
           (not (mv-nth 1
                        (vl-parse-variable-decl-assignment)))))

Theorem: vl-warning-p-of-vl-parse-variable-decl-assignment

(defthm vl-warning-p-of-vl-parse-variable-decl-assignment
  (iff (vl-warning-p (mv-nth 0 (vl-parse-variable-decl-assignment)))
       (mv-nth 0 (vl-parse-variable-decl-assignment))))

Theorem: vl-parse-variable-decl-assignment-result

(defthm vl-parse-variable-decl-assignment-result
  (implies
       (and t)
       (equal (vl-vardeclassign-p
                   (mv-nth 1 (vl-parse-variable-decl-assignment)))
              (not (mv-nth 0
                           (vl-parse-variable-decl-assignment))))))

Theorem: vl-parse-variable-decl-assignment-count-strong

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