xref: /netbsd-src/usr.bin/xlint/common/tyname.c (revision e5548b402ae4c44fb816de42c7bba9581ce23ef5)
1 /*-
2  * Copyright (c) 2005 The NetBSD Foundation, Inc.
3  * All rights reserved.
4  *
5  * This code is derived from software contributed to The NetBSD Foundation
6  * by Christos Zoulas.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *        This product includes software developed by the NetBSD
19  *        Foundation, Inc. and its contributors.
20  * 4. Neither the name of The NetBSD Foundation nor the names of its
21  *    contributors may be used to endorse or promote products derived
22  *    from this software without specific prior written permission.
23  *
24  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
25  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
26  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
27  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
28  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34  * POSSIBILITY OF SUCH DAMAGE.
35  */
36 
37 #if HAVE_NBTOOL_CONFIG_H
38 #include "nbtool_config.h"
39 #endif
40 
41 #include <sys/cdefs.h>
42 #if defined(__RCSID) && !defined(lint)
43 __RCSID("$NetBSD: tyname.c,v 1.2 2005/06/14 03:40:31 skd Exp $");
44 #endif
45 
46 #include <ctype.h>
47 #include <limits.h>
48 #include <stdlib.h>
49 #include <err.h>
50 
51 #include PASS
52 
53 #ifndef LERROR
54 #define LERROR(a) 	do { \
55     (void)warnx("%s, %d: %s", __FILE__, __LINE__, (a)); \
56     abort(); \
57 } while (/*CONSTCOND*/0)
58 #endif
59 
60 const char *
61 basictyname(tspec_t t)
62 {
63 	switch (t) {
64 	case BOOL:	return "_Bool";
65 	case CHAR:	return "char";
66 	case UCHAR:	return "unsigned char";
67 	case SCHAR:	return "signed char";
68 	case SHORT:	return "short";
69 	case USHORT:	return "unsigned short";
70 	case INT:	return "int";
71 	case UINT:	return "unsigned int";
72 	case LONG:	return "long";
73 	case ULONG:	return "unsigned long";
74 	case QUAD:	return "long long";
75 	case UQUAD:	return "unsigned long long";
76 	case FLOAT:	return "float";
77 	case DOUBLE:	return "double";
78 	case LDOUBLE:	return "long double";
79 	case VOID:	return "void";
80 	case PTR:	return "pointer";
81 	case ENUM:	return "enum";
82 	case STRUCT:	return "struct";
83 	case UNION:	return "union";
84 	case FUNC:	return "function";
85 	case ARRAY:	return "array";
86 	default:
87 		LERROR("basictyname()");
88 		return NULL;
89 	}
90 }
91 
92 const char *
93 tyname(char *buf, size_t bufsiz, type_t *tp)
94 {
95 	tspec_t	t;
96 	const	char *s;
97 	char lbuf[64];
98 
99 	if ((t = tp->t_tspec) == INT && tp->t_isenum)
100 		t = ENUM;
101 
102 	s = basictyname(t);
103 
104 
105 	switch (t) {
106 	case BOOL:
107 	case CHAR:
108 	case UCHAR:
109 	case SCHAR:
110 	case SHORT:
111 	case USHORT:
112 	case INT:
113 	case UINT:
114 	case LONG:
115 	case ULONG:
116 	case QUAD:
117 	case UQUAD:
118 	case FLOAT:
119 	case DOUBLE:
120 	case LDOUBLE:
121 	case VOID:
122 	case FUNC:
123 		(void)snprintf(buf, bufsiz, "%s", s);
124 		break;
125 	case PTR:
126 		(void)snprintf(buf, bufsiz, "%s to %s", s,
127 		    tyname(lbuf, sizeof(lbuf), tp->t_subt));
128 		break;
129 	case ENUM:
130 		(void)snprintf(buf, bufsiz, "%s %s", s,
131 #ifdef t_enum
132 		    tp->t_enum->etag->s_name
133 #else
134 		    tp->t_tag->h_name
135 #endif
136 		    );
137 		break;
138 	case STRUCT:
139 	case UNION:
140 		(void)snprintf(buf, bufsiz, "%s %s", s,
141 #ifdef t_str
142 		    tp->t_str->stag->s_name
143 #else
144 		    tp->t_tag->h_name
145 #endif
146 		    );
147 		break;
148 	case ARRAY:
149 		(void)snprintf(buf, bufsiz, "%s of %s[%d]", s,
150 		    tyname(lbuf, sizeof(lbuf), tp->t_subt), tp->t_dim);
151 		break;
152 	default:
153 		LERROR("tyname()");
154 	}
155 	return (buf);
156 }
157