ASTPair.hpp

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#ifndef INC_ASTPair_hpp__
#define INC_ASTPair_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/ASTPair.hpp#2 $
 */
 
#include <antlr/config.hpp>
#include <antlr/AST.hpp>
 
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
namespace antlr {
#endif

class ANTLR_API ASTPair {
public:
   RefAST root;     // current root of tree
   RefAST child;      // current child to which siblings are added

   void advanceChildToEnd() {
      if (child) {
         while (child->getNextSibling()) {
            child = child->getNextSibling();
         }
      }
   }
// /** Copy an ASTPair.  Don't call it clone() because we want type-safety */
// ASTPair copy() {
//    ASTPair tmp = new ASTPair();
//    tmp.root = root;
//    tmp.child = child;
//    return tmp;
// }
   ANTLR_USE_NAMESPACE(std)string toString() const {
      ANTLR_USE_NAMESPACE(std)string r = !root ? ANTLR_USE_NAMESPACE(std)string("null") : root->getText();
      ANTLR_USE_NAMESPACE(std)string c = !child ? ANTLR_USE_NAMESPACE(std)string("null") : child->getText();
      return "["+r+","+c+"]";
   }
};
 
#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
}
#endif
 
#endif //INC_ASTPair_hpp__