TokenStreamHiddenTokenFilter.hpp

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#ifndef INC_TokenStreamHiddenTokenFilter_hpp__
#define INC_TokenStreamHiddenTokenFilter_hpp__
 
/* ANTLR Translator Generator
 * Project led by Terence Parr at http://www.jGuru.com
 * Software rights: http://www.antlr.org/license.html
 *
 * $Id: //depot/code/org.antlr/release/antlr-2.7.7/lib/cpp/antlr/TokenStreamHiddenTokenFilter.hpp#2 $
 */
 
#include <antlr/config.hpp>
#include <antlr/TokenStreamBasicFilter.hpp>
 
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
namespace antlr {
#endif

class ANTLR_API TokenStreamHiddenTokenFilter : public TokenStreamBasicFilter {
   // protected BitSet discardMask;
protected:
   BitSet hideMask;
 
private:
   RefToken nextMonitoredToken;
 
protected:
   RefToken lastHiddenToken;
 
   RefToken firstHidden; // = null;
 
public:
   TokenStreamHiddenTokenFilter(TokenStream& input);
 
protected:
   void consume();
 
private:
   void consumeFirst();
 
public:
   BitSet getDiscardMask() const;

   RefToken getHiddenAfter(RefToken t);

   RefToken getHiddenBefore(RefToken t);
 
   BitSet getHideMask() const;

   RefToken getInitialHiddenToken();
 
   void hide(int m);
 
   void hide(const BitSet& mask);
 
protected:
   RefToken LA(int i);
 
public:
   RefToken nextToken();
};
 
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
}
#endif
 
#endif //INC_TokenStreamHiddenTokenFilter_hpp__