ASTNULLType.hpp
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上传日期:2007-01-06
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文件大小:3k
- #ifndef INC_ASTNULLType_hpp__
- #define INC_ASTNULLType_hpp__
- /**
- * <b>SOFTWARE RIGHTS</b>
- * <p>
- * ANTLR 2.6.0 MageLang Insitute, 1999
- * <p>
- * We reserve no legal rights to the ANTLR--it is fully in the
- * public domain. An individual or company may do whatever
- * they wish with source code distributed with ANTLR or the
- * code generated by ANTLR, including the incorporation of
- * ANTLR, or its output, into commerical software.
- * <p>
- * We encourage users to develop software with ANTLR. However,
- * we do ask that credit is given to us for developing
- * ANTLR. By "credit", we mean that if you use ANTLR or
- * incorporate any source code into one of your programs
- * (commercial product, research project, or otherwise) that
- * you acknowledge this fact somewhere in the documentation,
- * research report, etc... If you like ANTLR and have
- * developed a nice tool with the output, please mention that
- * you developed it using ANTLR. In addition, we ask that the
- * headers remain intact in our source code. As long as these
- * guidelines are kept, we expect to continue enhancing this
- * system and expect to make other tools available as they are
- * completed.
- * <p>
- * The ANTLR gang:
- * @version ANTLR 2.6.0 MageLang Insitute, 1999
- * @author Terence Parr, <a href=http://www.MageLang.com>MageLang Institute</a>
- * @author <br>John Lilley, <a href=http://www.Empathy.com>Empathy Software</a>
- * @author <br><a href="mailto:pete@yamuna.demon.co.uk">Pete Wells</a>
- */
- #include "antlr/config.hpp"
- #include "antlr/AST.hpp"
- ANTLR_BEGIN_NAMESPACE(antlr)
- /** There is only one instance of this class **/
- class ASTNULLType : public AST {
- public:
- void addChild(RefAST c) {;}
- bool equals(RefAST t) const {return false;}
- bool equalsList(RefAST t) const {return false;}
- bool equalsListPartial(RefAST t) const {return false;}
- bool equalsTree(RefAST t) const {return false;}
- bool equalsTreePartial(RefAST t) const {return false;}
- ANTLR_USE_NAMESPACE(std)vector<RefAST> findAll(RefAST tree)
- {return ANTLR_USE_NAMESPACE(std)vector<RefAST>();}
- ANTLR_USE_NAMESPACE(std)vector<RefAST> findAllPartial(RefAST subtree)
- {return ANTLR_USE_NAMESPACE(std)vector<RefAST>();}
- RefAST getFirstChild() const { return this; }
- RefAST getNextSibling() const { return this; }
- ANTLR_USE_NAMESPACE(std)string getText() const { return "<ASTNULL>"; }
- int getType() const { return Token::NULL_TREE_LOOKAHEAD; }
- void initialize(int t, const ANTLR_USE_NAMESPACE(std)string& txt) {}
- void initialize(RefAST t) {}
- void initialize(RefToken t) {}
- void setFirstChild(RefAST c) {;}
- void setNextSibling(RefAST n) {;}
- void setText(const ANTLR_USE_NAMESPACE(std)string& text) {;}
- void setType(int ttype) {;}
- ANTLR_USE_NAMESPACE(std)string toString() const {return getText();}
- ANTLR_USE_NAMESPACE(std)string toStringList() const {return getText();}
- ANTLR_USE_NAMESPACE(std)string toStringTree() const {return getText();}
- };
- ANTLR_END_NAMESPACE
- #endif //INC_ASTNULLType_hpp__