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Vl-parse-sequence-port-item

Parse sequence_port_item.

Signature

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

Arguments

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

sequence_port_item ::= { attribute_instance }
                          [ 'local' [ sequence_lvar_port_direction ] ]
                          sequence_formal_type
                          formal_port_identifier {variable_dimension}
                          [ '=' sequence_actual_arg ]

sequence_lvar_port_direction ::= 'input' | 'inout' | 'output'
formal_port_identifier ::= identifier

Definitions and Theorems

Function: vl-parse-sequence-port-item-fn

(defun vl-parse-sequence-port-item-fn (tokstream config)
 (declare (xargs :stobjs (tokstream)))
 (declare (xargs :guard (vl-loadconfig-p config)))
 (declare (ignorable config))
 (let ((__function__ 'vl-parse-sequence-port-item))
  (declare (ignorable __function__))
  (seq
   tokstream
   (atts := (vl-parse-0+-attribute-instances))
   (when (vl-is-token? :vl-kwd-local)
         (local := (vl-match))
         (dir := (vl-parse-optional-port-direction)))
   ((type . name)
    := (vl-parse-property-formal-type-and-id))
   (dims := (vl-parse-0+-variable-dimensions))
   (when
    (vl-is-token? :vl-equalsign)
    (:= (vl-match))
    (arg := (vl-parse-property-actual-arg (vl-idtoken->name name))))
   (return
    (make-vl-propport
       :name (vl-idtoken->name name)
       :localp (if local t nil)
       :dir (or dir :vl-input)
       :type (vl-datatype-update-udims dims type)
       :arg
       (or arg
           (make-vl-propactual-blank :name (vl-idtoken->name name)))
       :atts atts
       :loc (vl-token->loc name))))))

Theorem: vl-parse-sequence-port-item-fails-gracefully

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

Theorem: vl-warning-p-of-vl-parse-sequence-port-item

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

Theorem: vl-parse-sequence-port-item-result

(defthm vl-parse-sequence-port-item-result
 (implies
     (and t)
     (equal (vl-propport-p (mv-nth 1 (vl-parse-sequence-port-item)))
            (not (mv-nth 0 (vl-parse-sequence-port-item))))))

Theorem: vl-parse-sequence-port-item-count-strong

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