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• Parse-udps

Vl-parse-two-level-symbols

Horrible. To support edge_indicator, match two level_symbols, which would be so easy except they might not be separated by whitespace.

Signature

(vl-parse-two-level-symbols &key (tokstream 'tokstream) 
                            (config 'config)) 
 
  → 
(mv errmsg? value new-tokstream)

Arguments

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

Definitions and Theorems

Function: vl-parse-two-level-symbols-fn

(defun vl-parse-two-level-symbols-fn (tokstream config)
 (declare (xargs :stobjs (tokstream)))
 (declare (xargs :guard (vl-loadconfig-p config)))
 (declare (ignorable config))
 (let ((__function__ 'vl-parse-two-level-symbols))
  (declare (ignorable __function__))
  (seq
   tokstream
   (when
    (and (consp (vl-tokstream->tokens))
         (vl-udp-level-symbol-token-p (car (vl-tokstream->tokens))))
    (prev := (vl-parse-level-symbol))
    (next := (vl-parse-level-symbol))
    (return (make-vl-udpedge :prev prev
                             :next next)))
   (when (and (consp (vl-tokstream->tokens))
              (vl-01-integer-token-p (car (vl-tokstream->tokens))))
         (:= (vl-match))
         (return (make-vl-udpedge :prev :vl-udp-0
                                  :next :vl-udp-1)))
   (when (and (consp (vl-tokstream->tokens))
              (vl-10-integer-token-p (car (vl-tokstream->tokens))))
         (:= (vl-match))
         (return (make-vl-udpedge :prev :vl-udp-1
                                  :next :vl-udp-0)))
   (return-raw (vl-parse-error "Unsupported two level_symbols")))))

Theorem: vl-parse-two-level-symbols-fails-gracefully

(defthm vl-parse-two-level-symbols-fails-gracefully
  (implies (mv-nth 0 (vl-parse-two-level-symbols))
           (not (mv-nth 1 (vl-parse-two-level-symbols)))))

Theorem: vl-warning-p-of-vl-parse-two-level-symbols

(defthm vl-warning-p-of-vl-parse-two-level-symbols
  (iff (vl-warning-p (mv-nth 0 (vl-parse-two-level-symbols)))
       (mv-nth 0 (vl-parse-two-level-symbols))))

Theorem: vl-parse-two-level-symbols-result

(defthm vl-parse-two-level-symbols-result
 (implies
      (and t)
      (equal (vl-udpentry-p (mv-nth 1 (vl-parse-two-level-symbols)))
             (not (mv-nth 0 (vl-parse-two-level-symbols))))))

Theorem: vl-parse-two-level-symbols-count-strong

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