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• Parse-statements

Vl-parse-subroutine-call-statement

Parse a subroutine_call_statement. SystemVerilog-2012 only.

Signature

(vl-parse-subroutine-call-statement atts &key (tokstream 'tokstream) 
                                    (config 'config)) 
 
  → 
(mv errmsg? value new-tokstream)

Arguments

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

Grammar rules. Note that QUOTE means literally a quote character here.

subroutine_call_statement ::= subroutine_call ';'
                            | 'void' QUOTE '(' function_subroutine_call ')' ';'

function_subroutine_call ::= subroutine_call

Definitions and Theorems

Function: vl-parse-subroutine-call-statement-fn

(defun vl-parse-subroutine-call-statement-fn (atts tokstream config)
  (declare (xargs :stobjs (tokstream)))
  (declare (xargs :guard (vl-loadconfig-p config)))
  (declare (ignorable config))
  (declare (xargs :guard (vl-atts-p atts)))
  (let ((__function__ 'vl-parse-subroutine-call-statement))
    (declare (ignorable __function__))
    (if (vl-is-token? :vl-kwd-void)
        (seq tokstream (:= (vl-match))
             (:= (vl-match-token :vl-quote))
             (:= (vl-match-token :vl-lparen))
             (inner := (vl-parse-subroutine-call))
             (:= (vl-match-token :vl-rparen))
             (:= (vl-match-token :vl-semi))
             (return (b* (((vl-callstmt inner))
                          (atts (append atts inner.atts)))
                       (change-vl-callstmt inner
                                           :voidp t
                                           :atts atts))))
      (seq tokstream
           (inner := (vl-parse-subroutine-call))
           (:= (vl-match-token :vl-semi))
           (return (b* (((vl-callstmt inner))
                        (atts (append atts inner.atts)))
                     (change-vl-callstmt inner
                                         :atts atts)))))))

Theorem: vl-parse-subroutine-call-statement-fails-gracefully

(defthm vl-parse-subroutine-call-statement-fails-gracefully
 (implies (mv-nth 0
                  (vl-parse-subroutine-call-statement atts))
          (not (mv-nth 1
                       (vl-parse-subroutine-call-statement atts)))))

Theorem: vl-warning-p-of-vl-parse-subroutine-call-statement

(defthm vl-warning-p-of-vl-parse-subroutine-call-statement
 (iff
   (vl-warning-p (mv-nth 0
                         (vl-parse-subroutine-call-statement atts)))
   (mv-nth 0
           (vl-parse-subroutine-call-statement atts))))

Theorem: vl-parse-subroutine-call-statement-result

(defthm vl-parse-subroutine-call-statement-result
 (implies
  (and (force (vl-atts-p atts)))
  (equal
      (vl-stmt-p (mv-nth 1
                         (vl-parse-subroutine-call-statement atts)))
      (not (mv-nth 0
                   (vl-parse-subroutine-call-statement atts))))))

Theorem: vl-parse-subroutine-call-statement-count-strong

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