AST.hpp
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上传日期:2007-01-06
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文件大小:3k
- #ifndef INC_AST_hpp__
- #define INC_AST_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/ASTRefCount.hpp"
- #include "antlr/Token.hpp"
- #include <vector>
- #include <string>
- ANTLR_BEGIN_NAMESPACE(antlr)
- struct ASTRef;
- class AST {
- public:
- AST() {ref=0;}
- virtual ~AST() {}
- virtual void addChild(RefAST c)=0;
- virtual bool equals(RefAST t) const=0;
- virtual bool equalsList(RefAST t) const=0;
- virtual bool equalsListPartial(RefAST t) const=0;
- virtual bool equalsTree(RefAST t) const=0;
- virtual bool equalsTreePartial(RefAST t) const=0;
- virtual ANTLR_USE_NAMESPACE(std)vector<RefAST> findAll(RefAST t)=0;
- virtual ANTLR_USE_NAMESPACE(std)vector<RefAST> findAllPartial(RefAST t)=0;
- /** Get the first child of this node; null if no children */
- virtual RefAST getFirstChild() const=0;
- /** Get the next sibling in line after this one */
- virtual RefAST getNextSibling() const=0;
- /** Get the token text for this node */
- virtual ANTLR_USE_NAMESPACE(std)string getText() const=0;
- /** Get the token type for this node */
- virtual int getType() const=0;
- virtual void initialize(int t,const ANTLR_USE_NAMESPACE(std)string& txt)=0;
- virtual void initialize(RefAST t)=0;
- virtual void initialize(RefToken t)=0;
- /** Set the first child of a node. */
- virtual void setFirstChild(RefAST c)=0;
- /** Set the next sibling after this one. */
- virtual void setNextSibling(RefAST n)=0;
- /** Set the token text for this node */
- virtual void setText(const ANTLR_USE_NAMESPACE(std)string& txt)=0;
- /** Set the token type for this node */
- virtual void setType(int type)=0;
- virtual ANTLR_USE_NAMESPACE(std)string toString() const=0;
- virtual ANTLR_USE_NAMESPACE(std)string toStringList() const=0;
- virtual ANTLR_USE_NAMESPACE(std)string toStringTree() const=0;
- private:
- friend struct ASTRef;
- ASTRef* ref;
- AST(RefAST other);
- AST& operator=(RefAST other);
- };
- extern RefAST nullAST;
- extern AST* const nullASTptr;
- #ifdef NEEDS_OPERATOR_LESS_THAN
- inline operator<(RefAST l,RefAST r); // {return true;}
- #endif
- ANTLR_END_NAMESPACE
- #endif //INC_AST_hpp__