Пример #1
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 /** Marks the given visitor accepter as possibly being used. */
 protected void markAsPossiblyUsed(VisitorAccepter visitorAccepter) {
   visitorAccepter.setVisitorInfo(POSSIBLY_USED);
 }
Пример #2
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 /** Clears any usage marks from the given visitor accepter. */
 protected void markAsUnused(VisitorAccepter visitorAccepter) {
   visitorAccepter.setVisitorInfo(null);
 }
Пример #3
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 /** Marks the given visitor accepter as being used. */
 protected void markAsUsed(VisitorAccepter visitorAccepter) {
   visitorAccepter.setVisitorInfo(USED);
 }