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• Parse-property

Vl-parse-scoped-or-hierarchical-identifier

Matches ps_or_hierarchical_sequence_identifier or ps_or_hierarchical_tf_identifier.

Signature

(vl-parse-scoped-or-hierarchical-identifier 
     &key (tokstream 'tokstream) 
     (config 'config)) 
 
  → 
(mv errmsg? value new-tokstream)

Arguments

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

These seem to be a subset of scoped identifiers, so that's what I'll return.

Relevant grammar rules for ps_or_hierarchical_sequence_identifier

ps_or_hierarchical_sequence_identifier ::= [package_scope] sequence_identifier
                                         | hierarchical_sequence_identifier

package_scope ::= package_identifier '::'
                | '$unit' '::'

sequence_identifier ::= identifier
package_identifier ::= identifier

hierarchical_sequence_identifier ::= hierarchical_identifier

hierarchical_identifier ::= [ '$root' '.' ] { identifier constant_bit_select '.'} identifier

Analogous rules for ps_or_hierarchical_tf_identifier

ps_or_hierarchical_tf_identifier ::= [package_scope] tf_identifier
                                   | hierarchical_tf_identifier

hierarchical_tf_identifier ::= hierarchical_identifier

tf_identifier ::= identifier

Definitions and Theorems

Function: vl-parse-scoped-or-hierarchical-identifier-fn

(defun vl-parse-scoped-or-hierarchical-identifier-fn
       (tokstream config)
 (declare (xargs :stobjs (tokstream)))
 (declare (xargs :guard (vl-loadconfig-p config)))
 (declare (ignorable config))
 (let ((__function__ 'vl-parse-scoped-or-hierarchical-identifier))
  (declare (ignorable __function__))
  (seq
   tokstream
   (when
    (and (vl-is-token? :vl-idtoken)
         (vl-lookahead-is-token?
              :vl-scope (cdr (vl-tokstream->tokens))))
    (id1 := (vl-match))
    (:= (vl-match))
    (id2 := (vl-match-token :vl-idtoken))
    (return
     (make-vl-scopeexpr-colon
      :first (vl-idtoken->name id1)
      :rest
      (make-vl-scopeexpr-end
         :hid (make-vl-hidexpr-end :name (vl-idtoken->name id2))))))
   (hid := (vl-parse-hierarchical-identifier nil))
   (return (make-vl-scopeexpr-end :hid hid)))))

Theorem: vl-parse-scoped-or-hierarchical-identifier-fails-gracefully

(defthm vl-parse-scoped-or-hierarchical-identifier-fails-gracefully
  (implies
       (mv-nth 0
               (vl-parse-scoped-or-hierarchical-identifier))
       (not (mv-nth 1
                    (vl-parse-scoped-or-hierarchical-identifier)))))

Theorem: vl-warning-p-of-vl-parse-scoped-or-hierarchical-identifier

(defthm vl-warning-p-of-vl-parse-scoped-or-hierarchical-identifier
  (iff (vl-warning-p
            (mv-nth 0
                    (vl-parse-scoped-or-hierarchical-identifier)))
       (mv-nth 0
               (vl-parse-scoped-or-hierarchical-identifier))))

Theorem: vl-parse-scoped-or-hierarchical-identifier-result

(defthm vl-parse-scoped-or-hierarchical-identifier-result
 (implies
  (and t)
  (equal
      (vl-scopeexpr-p
           (mv-nth 1
                   (vl-parse-scoped-or-hierarchical-identifier)))
      (not (mv-nth 0
                   (vl-parse-scoped-or-hierarchical-identifier))))))

Theorem: vl-parse-scoped-or-hierarchical-identifier-count-strong

(defthm vl-parse-scoped-or-hierarchical-identifier-count-strong
 (and
  (<= (vl-tokstream-measure
           :tokstream
           (mv-nth 2
                   (vl-parse-scoped-or-hierarchical-identifier)))
      (vl-tokstream-measure))
  (implies
      (not (mv-nth 0
                   (vl-parse-scoped-or-hierarchical-identifier)))
      (< (vl-tokstream-measure
              :tokstream
              (mv-nth 2
                      (vl-parse-scoped-or-hierarchical-identifier)))
         (vl-tokstream-measure))))
 :rule-classes ((:rewrite) (:linear)))