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• Parse-functions-sv2012

Vl-parse-tf-port-declaration

Matches tf_port_declaration.

Signature

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

Arguments

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

tf_port_declaration ::= { attribute_instance } tf_port_direction
                        [ var ] data_type_or_implicit list_of_tf_variable_identifiers ';'

Definitions and Theorems

Function: vl-parse-tf-port-declaration-fn

(defun vl-parse-tf-port-declaration-fn (atts tokstream config)
 (declare (xargs :stobjs (tokstream)))
 (declare (xargs :guard (vl-loadconfig-p config)))
 (declare (ignorable config))
 (declare (xargs :guard (vl-atts-p atts)))
 (let ((__function__ 'vl-parse-tf-port-declaration))
  (declare (ignorable __function__))
  (seq
   tokstream
   (when
      (vl-is-token? :vl-kwd-const)
      (return-raw
           (vl-parse-error
                "BOZO implement 'const ref' task/function ports.")))
   (dir := (vl-match-some-token *vl-directions-kwds*))
   (when (vl-is-token? :vl-kwd-var)
         (:= (vl-match)))
   (when (vl-is-some-token? '(:vl-kwd-signed :vl-kwd-unsigned))
         (signing := (vl-match)))
   (when (vl-is-token? :vl-lbrack)
         (ranges := (vl-parse-0+-ranges)))
   (when
    (or signing ranges)
    (ids := (vl-parse-list-of-tf-variable-identifiers))
    (:= (vl-match-token :vl-semi))
    (return
     (vl-make-tf-ports-from-parsed-ids
        ids
        :atts atts
        :dir (cdr (assoc (vl-token->type dir)
                         *vl-directions-kwd-alist*))
        :type
        (make-vl-coretype :name :vl-logic
                          :signedp (and signing
                                        (eq (vl-token->type signing)
                                            :vl-kwd-signed))
                          :pdims (vl-ranges->dimensions ranges)))))
   (when (vl-is-token? :vl-idtoken)
         (type := (vl-parse-datatype-only-if-followed-by-id))
         (ids := (vl-parse-list-of-tf-variable-identifiers))
         (:= (vl-match-token :vl-semi))
         (return (vl-make-tf-ports-from-parsed-ids
                      ids
                      :atts atts
                      :dir (cdr (assoc (vl-token->type dir)
                                       *vl-directions-kwd-alist*))
                      :type (or type
                                (make-vl-coretype :name :vl-logic
                                                  :signedp nil
                                                  :pdims nil)))))
   (type := (vl-parse-datatype))
   (ids := (vl-parse-list-of-tf-variable-identifiers))
   (:= (vl-match-token :vl-semi))
   (return (vl-make-tf-ports-from-parsed-ids
                ids
                :atts atts
                :dir (cdr (assoc (vl-token->type dir)
                                 *vl-directions-kwd-alist*))
                :type type)))))

Theorem: vl-parse-tf-port-declaration-fails-gracefully

(defthm vl-parse-tf-port-declaration-fails-gracefully
  (implies (mv-nth 0 (vl-parse-tf-port-declaration atts))
           (not (mv-nth 1
                        (vl-parse-tf-port-declaration atts)))))

Theorem: vl-warning-p-of-vl-parse-tf-port-declaration

(defthm vl-warning-p-of-vl-parse-tf-port-declaration
  (iff (vl-warning-p (mv-nth 0 (vl-parse-tf-port-declaration atts)))
       (mv-nth 0 (vl-parse-tf-port-declaration atts))))

Theorem: vl-parse-tf-port-declaration-result

(defthm vl-parse-tf-port-declaration-result
 (implies
  (and (force (vl-atts-p atts)))
  (vl-portdecllist-p (mv-nth 1
                             (vl-parse-tf-port-declaration atts)))))

Theorem: vl-parse-tf-port-declaration-true-listp

(defthm vl-parse-tf-port-declaration-true-listp
  (true-listp (mv-nth 1 (vl-parse-tf-port-declaration atts)))
  :rule-classes :type-prescription)

Theorem: vl-parse-tf-port-declaration-count-strong

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