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Vl-parse-sequence-declaration

Parse sequence_declaration.

Signature

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

Arguments

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

sequence_declaration ::= 'sequence' sequence_identifier [ '(' [sequence_port_list] ')' ] ';'
                             { assertion_variable_declaration }
                             sequence_expr [ ';' ]
                         'endsequence' [ ':' sequence_identifier ]

sequence_port_list ::= sequence_port_item { ',' sequence_port_item }
sequence_identifier ::= identifier

Definitions and Theorems

Function: vl-parse-sequence-declaration-fn

(defun vl-parse-sequence-declaration-fn (tokstream config)
  (declare (xargs :stobjs (tokstream)))
  (declare (xargs :guard (vl-loadconfig-p config)))
  (declare (ignorable config))
  (let ((__function__ 'vl-parse-sequence-declaration))
    (declare (ignorable __function__))
    (seq tokstream
         (:= (vl-match-token :vl-kwd-sequence))
         (name := (vl-match-token :vl-idtoken))
         (when (vl-is-token? :vl-lparen)
               (:= (vl-match))
               (when (not (vl-is-token? :vl-rparen))
                     (ports := (vl-parse-1+-sequence-port-items)))
               (:= (vl-match-token :vl-rparen)))
         (:= (vl-match-token :vl-semi))
         (decls := (vl-parse-0+-assertion-variable-declarations))
         (expr := (vl-parse-property-expr))
         (when (vl-is-token? :vl-semi)
               (:= (vl-match)))
         (:= (vl-match-token :vl-kwd-endsequence))
         (:= (vl-parse-endblock-name (vl-idtoken->name name)
                                     "sequence/endsequence"))
         (return (make-vl-sequence :name (vl-idtoken->name name)
                                   :ports ports
                                   :decls decls
                                   :expr expr
                                   :loc (vl-token->loc name))))))

Theorem: vl-parse-sequence-declaration-fails-gracefully

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

Theorem: vl-warning-p-of-vl-parse-sequence-declaration

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

Theorem: vl-parse-sequence-declaration-result

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

Theorem: vl-parse-sequence-declaration-count-strong

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