1 /***********************************************************************
2 *                                                                      *
3 *               This software is part of the ast package               *
4 *           Copyright (c) 1986-2007 AT&T Knowledge Ventures            *
5 *                      and is licensed under the                       *
6 *                  Common Public License, Version 1.0                  *
7 *                      by AT&T Knowledge Ventures                      *
8 *                                                                      *
9 *                A copy of the License is available at                 *
10 *            http://www.opensource.org/licenses/cpl1.0.txt             *
11 *         (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9)         *
12 *                                                                      *
13 *              Information and Software Systems Research               *
14 *                            AT&T Research                             *
15 *                           Florham Park NJ                            *
16 *                                                                      *
17 *                 Glenn Fowler <gsf@research.att.com>                  *
18 *                                                                      *
19 ***********************************************************************/
20 #pragma prototyped
21 /*
22  * Glenn Fowler
23  * AT&T Research
24  *
25  * common preprocessor macro reference handler
26  */
27 
28 #include "pplib.h"
29 
30 void
31 ppmacref(struct ppsymbol* sym, char* file, int line, int type, unsigned long sum)
32 {
33 	register char*	p;
34 
35 	NoP(file);
36 	NoP(line);
37 	p = (pp.state & (DIRECTIVE|JOINING)) == DIRECTIVE ? pp.outp : pp.addp;
38 	p += sfsprintf(p, MAXTOKEN, "\n#%s %d", pp.lineid, error_info.line);
39 	p += sfsprintf(p, MAXTOKEN, "\n#%s %s:%s %s %d", dirname(PRAGMA), pp.pass, keyname(X_MACREF), sym->name, type);
40 	if (type > 0)
41 	{
42 		if (sym->macro && sym->macro->value)
43 			sum = strsum(sym->macro->value, (long)sym->macro->arity);
44 		p += sfsprintf(p, MAXTOKEN, " %lu", sum);
45 	}
46 	if ((pp.state & (DIRECTIVE|JOINING)) == DIRECTIVE)
47 	{
48 		pp.outp = p;
49 		ppcheckout();
50 	}
51 	else
52 	{
53 		*p++ = '\n';
54 		pp.addp = p;
55 		pp.state |= ADD;
56 	}
57 	pp.pending = pppendout();
58 }
59