astproc.h

   1 /*
   2  * $Id: astproc.h,v 1.5 2007/08/12 18:59:10 khansen Exp $
   3  * $Log: astproc.h,v $
   4  * Revision 1.5  2007/08/12 18:59:10  khansen
   5  * ability to generate pure 6502 binary
   6  *
   7  * Revision 1.4  2007/08/12 02:42:46  khansen
   8  * prettify, const
   9  *
  10  * Revision 1.3  2007/07/22 13:35:20  khansen
  11  * convert tabs to whitespaces
  12  *
  13  * Revision 1.2  2004/12/06 04:54:00  kenth
  14  * xorcyst 1.1.0
  15  *
  16  * Revision 1.1  2004/06/30 07:56:12  kenth
  17  * Initial revision
  18  *
  19  */
  20
  21 /**
  22  *    (C) 2004 Kent Hansen
  23  *
  24  *    The XORcyst is free software; you can redistribute it and/or modify
  25  *    it under the terms of the GNU General Public License as published by
  26  *    the Free Software Foundation; either version 2 of the License, or
  27  *    (at your option) any later version.
  28  *
  29  *    The XORcyst is distributed in the hope that it will be useful,
  30  *    but WITHOUT ANY WARRANTY; without even the implied warranty of
  31  *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  32  *    GNU General Public License for more details.
  33  *
  34  *    You should have received a copy of the GNU General Public License
  35  *    along with The XORcyst; if not, write to the Free Software
  36  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  37  */
  38
  39 #ifndef ASTPROC_H
  40 #define ASTPROC_H
  41
  42 #include "astnode.h"
  43
  44 /**
  45  * Signature for procedure to process an AST node.
  46  * @param node The node to process
  47  * @param arg General-purpose argument
  48  * @param next Next node to process
  49  * @return 0 if node children should not be processed, 1 otherwise
  50  */
  51 typedef int (*astnodeproc)(astnode *, void *, astnode **);
  52
  53 /**
  54  * Structure that represents a mapping from node type to processor function.
  55  * All AST traversal functions rely on tables of such mappings.
  56  */
  57 struct tag_astnodeprocmap {
  58     astnode_type type;  /* The AST node type (*_NODE, see header file) */
  59     astnodeproc proc;   /* The function that will process nodes of type */
  60 };
  61
  62 typedef struct tag_astnodeprocmap astnodeprocmap;
  63
  64 /* Function prototypes */
  65 void astproc_first_pass(astnode *);
  66 void astproc_second_pass(astnode *);
  67 void astproc_third_pass(astnode *);
  68 void astproc_fourth_pass(astnode *);
  69 void astproc_fifth_pass(astnode *);
  70 void astproc_walk(astnode *, void *, const astnodeprocmap *);
  71 int astproc_err_count();
  72
  73 #endif  /* !ASTPROC_H */