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/* Abstract syntax tree
*
* SOFTWARE RIGHTS
*
* We reserve no LEGAL rights to the Purdue Compiler Construction Tool
* Set (PCCTS) -- PCCTS is in the public domain. An individual or
* company may do whatever they wish with source code distributed with
* PCCTS or the code generated by PCCTS, including the incorporation of
* PCCTS, or its output, into commerical software.
*
* We encourage users to develop software with PCCTS. However, we do ask
* that credit is given to us for developing PCCTS. By "credit",
* we mean that if you incorporate our 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 PCCTS and have developed a nice tool with the
* output, please mention that you developed it using PCCTS. In
* addition, we ask that this header 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.
*
* ANTLR 1.33
* Terence Parr
* Parr Research Corporation
* with Purdue University and AHPCRC, University of Minnesota
* 1989-2000
*/
#ifndef ASTBase_H
#define ASTBase_H
#include "pcctscfg.h"
#include "pccts_stdio.h"
#include "pccts_stdlib.h"
PCCTS_NAMESPACE_STD
#ifndef PCCTS_NOT_USING_SOR
#include "PCCTSAST.h"
#endif
/*
* Notes:
*
* To specify a copy constructor, subclass one of these classes and
* give the copy constructor. To use dup(), you must define shallowCopy().
* shallowCopy() can use either a copy constructor or just copy the node
* itself.
*/
#ifdef PCCTS_NOT_USING_SOR
class DllExportPCCTS ASTBase {
#else
class DllExportPCCTS ASTBase : public PCCTS_AST {
#endif
protected:
ASTBase *_right, *_down;
public:
#ifdef PCCTS_NOT_USING_SOR
ASTBase *right() { return _right; }
ASTBase *down() { return _down; }
void setRight(ASTBase *t) { _right = (ASTBase *)t; }
void setDown(ASTBase *t) { _down = (ASTBase *)t; }
#else
PCCTS_AST *right() { return _right; } // define the SORCERER interface
PCCTS_AST *down() { return _down; }
void setRight(PCCTS_AST *t) { _right = (ASTBase *)t; }
void setDown(PCCTS_AST *t) { _down = (ASTBase *)t; }
#endif
ASTBase() { _right = _down = NULL; }
virtual ~ASTBase() { ; }
#ifndef PCCTS_NOT_USING_SOR
virtual ASTBase *dup();
#endif
void destroy();
void preorder(void* pData = NULL /* MR23 */);
static ASTBase *tmake(ASTBase *, ...);
static void link(ASTBase **, ASTBase **, ASTBase **);
void subchild(ASTBase **, ASTBase **, ASTBase **);
void subroot(ASTBase **, ASTBase **, ASTBase **);
virtual void preorder_action(void* /*pData*/ = NULL /* MR23 */) { ; }
virtual void preorder_before_action(void* /*pData*/ = NULL /* MR23 */) { /* MR23 */ printMessage(stdout, " ("); }
virtual void preorder_after_action(void* /*pData*/ = NULL /* MR23 */) { /* MR23 */ printMessage(stdout, " )"); }
virtual void panic(const char *msg); /* MR21 */
virtual void reportOverwriteOfDownPointer(); /* MR21 */
#ifdef PCCTS_NOT_USING_SOR
virtual int printMessage(FILE* pFile, const char* pFormat, ...); // MR23
#endif
};
class DllExportPCCTS ASTDoublyLinkedBase : public ASTBase {
protected:
ASTDoublyLinkedBase *_left, *_up;
public:
void double_link(ASTBase *left, ASTBase *up);
#ifndef PCCTS_NOT_USING_SOR
virtual ASTBase *dup();
#endif
#ifdef PCCTS_NOT_USING_SOR
ASTBase *left() { return _left; }
ASTBase *up() { return _up; }
void setLeft(ASTBase *t) { _left = (ASTDoublyLinkedBase *)t; } // MR6
void setUp(ASTBase *t) { _up = (ASTDoublyLinkedBase *)t; } // MR6
#else
PCCTS_AST *left() { return _left; }
PCCTS_AST *up() { return _up; }
void setLeft(PCCTS_AST *t) { _left = (ASTDoublyLinkedBase *)t; } // MR6
void setUp(PCCTS_AST *t) { _up = (ASTDoublyLinkedBase *)t; } // MR6
#endif
};
class AST; // announce that this class will be coming along shortly
#endif
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