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• Verilog-2005-portdecls

Vl-parse-module-port-list-top-2005

Verilog-2005 only. Top-level function for parsing port lists in both ANSI and non-ANSI styles.

Signature

(vl-parse-module-port-list-top-2005 &key (tokstream 'tokstream) 
                                    (config 'config)) 
 
  → 
(mv errmsg? value new-tokstream)

Arguments

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

See verilog-2005-ports and verilog-2005-portdecls. We match the following, contrived grammar rule:

vl_module_port_list ::= list_of_ports
                      | [list_of_port_declarations]

We can tell which variant we are following because a port_declaration must begin with one of:

(*
input
output
inout

Definitions and Theorems

Function: vl-parse-module-port-list-top-2005-fn

(defun vl-parse-module-port-list-top-2005-fn (tokstream config)
 (declare (xargs :stobjs (tokstream)))
 (declare (xargs :guard (vl-loadconfig-p config)))
 (declare (ignorable config))
 (let ((__function__ 'vl-parse-module-port-list-top-2005))
  (declare (ignorable __function__))
  (seq
   tokstream
   (unless (vl-is-token? :vl-lparen)
           (return (make-vl-parsed-ports :ansi-p nil
                                         :ports nil
                                         :portdecls nil
                                         :vardecls nil)))
   (:= (vl-match))
   (when (vl-is-token? :vl-rparen)
         (:= (vl-match-token :vl-rparen))
         (return (make-vl-parsed-ports :ansi-p nil
                                       :ports nil
                                       :portdecls nil
                                       :vardecls nil)))
   (when
       (vl-is-some-token?
            '(:vl-kwd-output :vl-kwd-input
                             :vl-kwd-inout :vl-beginattr))
       ((portdecls . vardecls)
        := (vl-parse-1+-port-declarations-separated-by-commas-2005))
       (:= (vl-match-token :vl-rparen))
       (return (make-vl-parsed-ports
                    :ansi-p t
                    :ports (vl-ports-from-portdecls portdecls)
                    :portdecls portdecls
                    :vardecls vardecls)))
   (ports := (vl-parse-1+-ports-separated-by-commas))
   (:= (vl-match-token :vl-rparen))
   (return (make-vl-parsed-ports :ansi-p nil
                                 :ports ports
                                 :portdecls nil
                                 :vardecls nil)))))

Theorem: vl-parse-module-port-list-top-2005-fails-gracefully

(defthm vl-parse-module-port-list-top-2005-fails-gracefully
  (implies (mv-nth 0 (vl-parse-module-port-list-top-2005))
           (not (mv-nth 1
                        (vl-parse-module-port-list-top-2005)))))

Theorem: vl-warning-p-of-vl-parse-module-port-list-top-2005

(defthm vl-warning-p-of-vl-parse-module-port-list-top-2005
 (iff (vl-warning-p (mv-nth 0 (vl-parse-module-port-list-top-2005)))
      (mv-nth 0
              (vl-parse-module-port-list-top-2005))))

Theorem: vl-parse-module-port-list-top-2005-result

(defthm vl-parse-module-port-list-top-2005-result
  (implies
       (and t)
       (equal (vl-parsed-ports-p
                   (mv-nth 1 (vl-parse-module-port-list-top-2005)))
              (not (mv-nth 0
                           (vl-parse-module-port-list-top-2005))))))

Theorem: vl-parse-module-port-list-top-2005-count-weak

(defthm vl-parse-module-port-list-top-2005-count-weak
 (<=
    (vl-tokstream-measure
         :tokstream (mv-nth 2 (vl-parse-module-port-list-top-2005)))
    (vl-tokstream-measure))
 :rule-classes ((:rewrite) (:linear)))