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• Parse-paramdecls

Vl-parse-param-or-localparam-declaration-2012

Signature

(vl-parse-param-or-localparam-declaration-2012 
     atts types &key (tokstream 'tokstream) 
     (config 'config)) 
 
  → 
(mv errmsg? value new-tokstream)

Arguments

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

Definitions and Theorems

Function: vl-parse-param-or-localparam-declaration-2012-fn

(defun vl-parse-param-or-localparam-declaration-2012-fn
       (atts types tokstream config)
 (declare (xargs :stobjs (tokstream)))
 (declare (xargs :guard (vl-loadconfig-p config)))
 (declare (ignorable config))
 (declare
  (xargs
    :guard (and (vl-atts-p atts)
                (true-listp types)
                (subsetp types
                         '(:vl-kwd-parameter :vl-kwd-localparam)))))
 (let
    ((__function__ 'vl-parse-param-or-localparam-declaration-2012))
  (declare (ignorable __function__))
  (seq
   tokstream
   (start := (vl-match-some-token types))
   (when
    (vl-is-token? :vl-kwd-type)
    (:= (vl-match))
    (decls
       :=
       (vl-parse-list-of-type-assignments atts
                                          (eq (vl-token->type start)
                                              :vl-kwd-localparam)))
    (return decls))
   (when (vl-is-some-token? '(:vl-kwd-signed :vl-kwd-unsigned))
         (signing := (vl-match)))
   (when (vl-is-token? :vl-lbrack)
         (range := (vl-parse-range)))
   (when
    (or signing range)
    (decls
     :=
     (vl-parse-list-of-param-assignments
          atts
          (eq (vl-token->type start)
              :vl-kwd-localparam)
          (make-vl-implicitvalueparam
               :range range
               :sign (and signing
                          (case (vl-token->type signing)
                                (:vl-kwd-signed :vl-signed)
                                (:vl-kwd-unsigned :vl-unsigned))))))
    (return decls))
   (return-raw
    (b*
     ((localp (eq (vl-token->type start)
                  :vl-kwd-localparam))
      (emptytype (make-vl-implicitvalueparam :range nil
                                             :sign nil))
      (backup (vl-tokstream-save))
      ((mv some-err some-decls tokstream)
       (seq tokstream (type := (vl-parse-datatype))
            (decls := (vl-parse-list-of-param-assignments
                           atts localp
                           (make-vl-explicitvalueparam :type type)))
            (return decls)))
      ((unless some-err)
       (mv some-err some-decls tokstream))
      (some-tokens (vl-tokstream->tokens))
      (tokstream (vl-tokstream-restore backup))
      ((mv empty-err empty-decls tokstream)
       (vl-parse-list-of-param-assignments atts localp emptytype))
      ((unless empty-err)
       (mv empty-err empty-decls tokstream))
      (empty-tokens (vl-tokstream->tokens))
      (tokstream (vl-tokstream-restore backup)))
     (if (< (len empty-tokens) (len some-tokens))
         (mv empty-err empty-decls tokstream)
       (mv some-err some-decls tokstream)))))))

Theorem: vl-parse-param-or-localparam-declaration-2012-fails-gracefully

(defthm
     vl-parse-param-or-localparam-declaration-2012-fails-gracefully
 (implies
  (mv-nth
       0
       (vl-parse-param-or-localparam-declaration-2012 atts types))
  (not
   (mv-nth
      1
      (vl-parse-param-or-localparam-declaration-2012 atts types)))))

Theorem: vl-warning-p-of-vl-parse-param-or-localparam-declaration-2012

(defthm
      vl-warning-p-of-vl-parse-param-or-localparam-declaration-2012
 (iff
  (vl-warning-p
   (mv-nth
        0
        (vl-parse-param-or-localparam-declaration-2012 atts types)))
  (mv-nth
       0
       (vl-parse-param-or-localparam-declaration-2012 atts types))))

Theorem: vl-parse-param-or-localparam-declaration-2012-result

(defthm vl-parse-param-or-localparam-declaration-2012-result
 (implies
  (and
    (and (force (vl-atts-p atts))
         (force (true-listp types))
         (force (subsetp types
                         '(:vl-kwd-parameter :vl-kwd-localparam)))))
  (vl-paramdecllist-p
   (mv-nth
      1
      (vl-parse-param-or-localparam-declaration-2012 atts types)))))

Theorem: vl-parse-param-or-localparam-declaration-2012-true-listp

(defthm vl-parse-param-or-localparam-declaration-2012-true-listp
 (true-listp
   (mv-nth
        1
        (vl-parse-param-or-localparam-declaration-2012 atts types)))
 :rule-classes :type-prescription)

Theorem: vl-parse-param-or-localparam-declaration-2012-count-strong

(defthm vl-parse-param-or-localparam-declaration-2012-count-strong
 (and
  (<=
   (vl-tokstream-measure
    :tokstream
    (mv-nth
        2
        (vl-parse-param-or-localparam-declaration-2012 atts types)))
   (vl-tokstream-measure))
  (implies
   (not
    (mv-nth
        0
        (vl-parse-param-or-localparam-declaration-2012 atts types)))
   (<
    (vl-tokstream-measure
     :tokstream
     (mv-nth
        2
        (vl-parse-param-or-localparam-declaration-2012 atts types)))
    (vl-tokstream-measure))))
 :rule-classes ((:rewrite) (:linear)))