tyname.c revision 1.14
1 /* $NetBSD: tyname.c,v 1.14 2020/12/29 11:35:11 rillig Exp $ */ 2 3 /*- 4 * Copyright (c) 2005 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Christos Zoulas. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #if HAVE_NBTOOL_CONFIG_H 33 #include "nbtool_config.h" 34 #endif 35 36 #include <sys/cdefs.h> 37 #if defined(__RCSID) && !defined(lint) 38 __RCSID("$NetBSD: tyname.c,v 1.14 2020/12/29 11:35:11 rillig Exp $"); 39 #endif 40 41 #include <limits.h> 42 #include <string.h> 43 #include <stdlib.h> 44 #include <err.h> 45 46 #include PASS 47 48 #ifndef LERROR 49 #define LERROR(fmt, args...) do { \ 50 (void)warnx("%s, %d: " fmt, __FILE__, __LINE__, ##args); \ 51 abort(); \ 52 } while (/*CONSTCOND*/0) 53 #endif 54 55 const char * 56 basictyname(tspec_t t) 57 { 58 switch (t) { 59 case BOOL: return "_Bool"; 60 case CHAR: return "char"; 61 case UCHAR: return "unsigned char"; 62 case SCHAR: return "signed char"; 63 case SHORT: return "short"; 64 case USHORT: return "unsigned short"; 65 case INT: return "int"; 66 case UINT: return "unsigned int"; 67 case LONG: return "long"; 68 case ULONG: return "unsigned long"; 69 case QUAD: return "long long"; 70 case UQUAD: return "unsigned long long"; 71 #ifdef INT128_SIZE 72 case INT128: return "__int128_t"; 73 case UINT128: return "__uint128_t"; 74 #endif 75 case FLOAT: return "float"; 76 case DOUBLE: return "double"; 77 case LDOUBLE: return "long double"; 78 case VOID: return "void"; 79 case PTR: return "pointer"; 80 case ENUM: return "enum"; 81 case STRUCT: return "struct"; 82 case UNION: return "union"; 83 case FUNC: return "function"; 84 case ARRAY: return "array"; 85 case FCOMPLEX: return "float _Complex"; 86 case DCOMPLEX: return "double _Complex"; 87 case LCOMPLEX: return "long double _Complex"; 88 case COMPLEX: return "_Complex"; 89 default: 90 LERROR("basictyname(%d)", t); 91 return NULL; 92 } 93 } 94 95 int 96 sametype(const type_t *t1, const type_t *t2) 97 { 98 tspec_t t; 99 100 if (t1->t_tspec != t2->t_tspec) 101 return 0; 102 103 /* Ignore const/void */ 104 105 switch (t = t1->t_tspec) { 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 #ifdef INT128_SIZE 119 case INT128: 120 case UINT128: 121 #endif 122 case FLOAT: 123 case DOUBLE: 124 case LDOUBLE: 125 case VOID: 126 case FUNC: 127 case COMPLEX: 128 case FCOMPLEX: 129 case DCOMPLEX: 130 case LCOMPLEX: 131 return 1; 132 case ARRAY: 133 if (t1->t_dim != t2->t_dim) 134 return 0; 135 /*FALLTHROUGH*/ 136 case PTR: 137 return sametype(t1->t_subt, t2->t_subt); 138 case ENUM: 139 #ifdef t_enum 140 return strcmp(t1->t_enum->etag->s_name, 141 t2->t_enum->etag->s_name) == 0; 142 #else 143 return 1; 144 #endif 145 case STRUCT: 146 case UNION: 147 #ifdef t_str 148 return strcmp(t1->t_str->stag->s_name, 149 t2->t_str->stag->s_name) == 0; 150 #else 151 return 1; 152 #endif 153 default: 154 LERROR("tyname(%d)", t); 155 return 0; 156 } 157 } 158 159 const char * 160 tyname(char *buf, size_t bufsiz, const type_t *tp) 161 { 162 tspec_t t; 163 const char *s; 164 char lbuf[64]; 165 char cv[20]; 166 167 if (tp == NULL) 168 return "(null)"; 169 if ((t = tp->t_tspec) == INT && tp->t_isenum) 170 t = ENUM; 171 172 s = basictyname(t); 173 174 cv[0] = '\0'; 175 if (tp->t_const) 176 (void)strcat(cv, "const "); 177 if (tp->t_volatile) 178 (void)strcat(cv, "volatile "); 179 180 switch (t) { 181 case BOOL: 182 case CHAR: 183 case UCHAR: 184 case SCHAR: 185 case SHORT: 186 case USHORT: 187 case INT: 188 case UINT: 189 case LONG: 190 case ULONG: 191 case QUAD: 192 case UQUAD: 193 #ifdef INT128_SIZE 194 case INT128: 195 case UINT128: 196 #endif 197 case FLOAT: 198 case DOUBLE: 199 case LDOUBLE: 200 case VOID: 201 case FUNC: 202 case COMPLEX: 203 case FCOMPLEX: 204 case DCOMPLEX: 205 case LCOMPLEX: 206 (void)snprintf(buf, bufsiz, "%s%s", cv, s); 207 break; 208 case PTR: 209 (void)snprintf(buf, bufsiz, "%s%s to %s", cv, s, 210 tyname(lbuf, sizeof(lbuf), tp->t_subt)); 211 break; 212 case ENUM: 213 (void)snprintf(buf, bufsiz, "%s%s %s", cv, s, 214 #ifdef t_enum 215 tp->t_enum->etag->s_name 216 #else 217 tp->t_isuniqpos ? "*anonymous*" : tp->t_tag->h_name 218 #endif 219 ); 220 break; 221 case STRUCT: 222 case UNION: 223 (void)snprintf(buf, bufsiz, "%s%s %s", cv, s, 224 #ifdef t_str 225 tp->t_str->stag->s_name 226 #else 227 tp->t_isuniqpos ? "*anonymous*" : tp->t_tag->h_name 228 #endif 229 ); 230 break; 231 case ARRAY: 232 (void)snprintf(buf, bufsiz, "%s%s of %s[%d]", cv, s, 233 tyname(lbuf, sizeof(lbuf), tp->t_subt), tp->t_dim); 234 break; 235 default: 236 LERROR("tyname(%d)", t); 237 } 238 return buf; 239 } 240
Indexes created Wed Sep 24 05:09:52 GMT 2025