#ifndef SList_h

#define SList_h

/*

 * SList.h

 *

 * SOFTWARE RIGHTS

 *

 * We reserve no LEGAL rights to SORCERER -- SORCERER is in the public

 * domain.  An individual or company may do whatever they wish with

 * source code distributed with SORCERER or the code generated by

 * SORCERER, including the incorporation of SORCERER, or its output, into

 * commerical software.

 *

 * We encourage users to develop software with SORCERER.  However, we do

 * ask that credit is given to us for developing SORCERER.  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 SORCERER and have developed a nice tool with the

 * output, please mention that you developed it using SORCERER.  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.

 *

 * PCCTS 1.33

 * Terence Parr

 * Parr Research Corporation

 * with Purdue University and AHPCRC, University of Minnesota

 * 1992-2000

 */

#include "pcctscfg.h"

#include "pccts_stdio.h"

#include "pccts_stdlib.h"

PCCTS_NAMESPACE_STD

#include "PCCTSAST.h"

class PCCTS_AST;

class SListNode {

protected:

	void *_elem;			/* pointer to any kind of element */

	SListNode *_next;

public:

	SListNode()				{_elem=_next=NULL;}

	virtual ~SListNode()	{_elem=_next=NULL;}

	void *elem()			{ return _elem; }

	void setElem(void *e)	{ _elem = e; }

	void setNext(SListNode *t)	{ _next = t; }

	SListNode *next()		{ return _next; }

};

class SList {

	SListNode *head, *tail;

public:

	SList() {head=tail=NULL;}

	virtual ~SList() {head=tail=NULL;}

	virtual void *iterate(SListNode **);

	virtual void add(void *e);

	virtual void lfree();

	virtual PCCTS_AST *to_ast(SList list);

	virtual void require(int e,char *err){ if ( !e ) panic(err); }

	virtual void panic(char *err){ /* MR23 */ printMessage(stderr, "SList panic: %s\n", err); exit(PCCTS_EXIT_FAILURE); }

	virtual int printMessage(FILE* pFile, const char* pFormat, ...); // MR23

};

#endif