--- /dev/null
+#ifndef INC_AST_hpp__
+#define INC_AST_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/AST.hpp#2 $
+ */
+
+#include <antlr/config.hpp>
+#include <antlr/ASTRefCount.hpp>
+#include <antlr/Token.hpp>
+#include <vector>
+#include <string>
+
+#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
+namespace antlr {
+#endif
+
+struct ASTRef;
+
+class ANTLR_API AST {
+public:
+ AST() : ref(0) {}
+ AST(const AST&) : ref(0) {}
+ virtual ~AST() {}
+
+ /// Return the type name for this AST node. (for XML output)
+ virtual const char* typeName( void ) const = 0;
+ /// Clone this AST node.
+ virtual RefAST clone( void ) const = 0;
+ /// Is node t equal to this in terms of token type and text?
+ virtual bool equals(RefAST t) const = 0;
+ /** Is t an exact structural and equals() match of this tree. The
+ * 'this' reference is considered the start of a sibling list.
+ */
+ virtual bool equalsList(RefAST t) const = 0;
+
+ /** Is 't' a subtree of this list? The siblings of the root are NOT ignored.
+ */
+ virtual bool equalsListPartial(RefAST t) const = 0;
+ /** Is tree rooted at 'this' equal to 't'? The siblings of 'this' are
+ * ignored.
+ */
+ virtual bool equalsTree(RefAST t) const = 0;
+ /** Is 't' a subtree of the tree rooted at 'this'? The siblings of
+ * 'this' are ignored.
+ */
+ virtual bool equalsTreePartial(RefAST t) const = 0;
+
+ /** Walk the tree looking for all exact subtree matches. Return
+ * a vector of RefAST that lets the caller walk the list
+ * of subtree roots found herein.
+ */
+ virtual ANTLR_USE_NAMESPACE(std)vector<RefAST> findAll(RefAST t) = 0;
+
+ /** Walk the tree looking for all subtrees. Return
+ * a vector of RefAST that lets the caller walk the list
+ * of subtree roots found herein.
+ */
+ virtual ANTLR_USE_NAMESPACE(std)vector<RefAST> findAllPartial(RefAST t) = 0;
+
+ /// Add a node to the end of the child list for this node
+ virtual void addChild(RefAST c) = 0;
+ /// Get the number of children. Returns 0 if the node is a leaf
+ virtual size_t getNumberOfChildren() const = 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;
+
+ /** Various initialization routines. Used by several factories to initialize
+ * an AST element.
+ */
+ 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;
+
+#ifdef ANTLR_SUPPORT_XML
+ /** initialize this node from the contents of a stream.
+ * @param in the stream to read the AST attributes from.
+ */
+ virtual void initialize( ANTLR_USE_NAMESPACE(std)istream& in ) = 0;
+#endif
+
+ /// 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;
+
+ /// Return this AST node as a string
+ virtual ANTLR_USE_NAMESPACE(std)string toString() const = 0;
+
+ /// Print out a child-sibling tree in LISP notation
+ virtual ANTLR_USE_NAMESPACE(std)string toStringList() const = 0;
+ virtual ANTLR_USE_NAMESPACE(std)string toStringTree() const = 0;
+
+#ifdef ANTLR_SUPPORT_XML
+ /** get attributes of this node to 'out'. Override to customize XML
+ * output.
+ * @param out the stream to write the AST attributes to.
+ * @returns if a explicit closetag should be written
+ */
+ virtual bool attributesToStream( ANTLR_USE_NAMESPACE(std)ostream& out ) const = 0;
+
+ /** Print a symbol over ostream. Overload this one to customize the XML
+ * output for AST derived AST-types
+ * @param output stream
+ */
+ virtual void toStream( ANTLR_USE_NAMESPACE(std)ostream &out ) const = 0;
+
+ /** Dump AST contents in XML format to output stream.
+ * Works in conjunction with to_stream method. Overload that one is
+ * derived classes to customize behaviour.
+ * @param output stream to write to string to put the stuff in.
+ * @param ast RefAST object to write.
+ */
+ friend ANTLR_USE_NAMESPACE(std)ostream& operator<<( ANTLR_USE_NAMESPACE(std)ostream& output, const RefAST& ast );
+#endif
+
+private:
+ friend struct ASTRef;
+ ASTRef* ref;
+
+ AST(RefAST other);
+ AST& operator=(const AST& other);
+ AST& operator=(RefAST other);
+};
+
+#ifdef ANTLR_SUPPORT_XML
+inline ANTLR_USE_NAMESPACE(std)ostream& operator<<( ANTLR_USE_NAMESPACE(std)ostream& output, const RefAST& ast )
+{
+ ast->toStream(output);
+ return output;
+}
+#endif
+
+extern ANTLR_API RefAST nullAST;
+extern ANTLR_API AST* const nullASTptr;
+
+#ifdef NEEDS_OPERATOR_LESS_THAN
+// RK: apparently needed by MSVC and a SUN CC, up to and including
+// 2.7.2 this was undefined ?
+inline bool operator<( RefAST l, RefAST r )
+{
+ return nullAST == l ? ( nullAST == r ? false : true ) : l->getType() < r->getType();
+}
+#endif
+
+#ifdef ANTLR_CXX_SUPPORTS_NAMESPACE
+}
+#endif
+
+#endif //INC_AST_hpp__
projects / apple / security.git / blobdiff