/* 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 | |
* 1989-1998 | |
*/ | |
#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(); | |
static ASTBase *tmake(ASTBase *, ...); | |
static void link(ASTBase **, ASTBase **, ASTBase **); | |
void subchild(ASTBase **, ASTBase **, ASTBase **); | |
void subroot(ASTBase **, ASTBase **, ASTBase **); | |
virtual void preorder_action() { ; } | |
virtual void preorder_before_action() { printf(" ("); } | |
virtual void preorder_after_action() { printf(" )"); } | |
virtual void panic(const char *msg); /* MR21 */ | |
virtual void reportOverwriteOfDownPointer(); /* MR21 */ | |
}; | |
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 |