tyname.c revision 1.12
1/* $NetBSD: tyname.c,v 1.12 2016/08/19 10:18:11 christos 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 1.12 2016/08/19 10:18:11 christos 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 55const char * 56basictyname(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 case FLOAT: return "float"; 72 case DOUBLE: return "double"; 73 case LDOUBLE: return "long double"; 74 case VOID: return "void"; 75 case PTR: return "pointer"; 76 case ENUM: return "enum"; 77 case STRUCT: return "struct"; 78 case UNION: return "union"; 79 case FUNC: return "function"; 80 case ARRAY: return "array"; 81 case FCOMPLEX: return "float _Complex"; 82 case DCOMPLEX: return "double _Complex"; 83 case LCOMPLEX: return "long double _Complex"; 84 case COMPLEX: return "_Complex"; 85 default: 86 LERROR("basictyname(%d)", t); 87 return NULL; 88 } 89} 90 91int 92sametype(const type_t *t1, const type_t *t2) 93{ 94 tspec_t t; 95 96 if (t1->t_tspec != t2->t_tspec) 97 return 0; 98 99 /* Ignore const/void */ 100 101 switch (t = t1->t_tspec) { 102 case BOOL: 103 case CHAR: 104 case UCHAR: 105 case SCHAR: 106 case SHORT: 107 case USHORT: 108 case INT: 109 case UINT: 110 case LONG: 111 case ULONG: 112 case QUAD: 113 case UQUAD: 114 case FLOAT: 115 case DOUBLE: 116 case LDOUBLE: 117 case VOID: 118 case FUNC: 119 case COMPLEX: 120 case FCOMPLEX: 121 case DCOMPLEX: 122 case LCOMPLEX: 123 return 1; 124 case ARRAY: 125 if (t1->t_dim != t2->t_dim) 126 return 0; 127 /*FALLTHROUGH*/ 128 case PTR: 129 return sametype(t1->t_subt, t2->t_subt); 130 case ENUM: 131#ifdef t_enum 132 return strcmp(t1->t_enum->etag->s_name, 133 t2->t_enum->etag->s_name) == 0; 134#else 135 return 1; 136#endif 137 case STRUCT: 138 case UNION: 139#ifdef t_str 140 return strcmp(t1->t_str->stag->s_name, 141 t2->t_str->stag->s_name) == 0; 142#else 143 return 1; 144#endif 145 default: 146 LERROR("tyname(%d)", t); 147 return 0; 148 } 149} 150 151const char * 152tyname(char *buf, size_t bufsiz, const type_t *tp) 153{ 154 tspec_t t; 155 const char *s; 156 char lbuf[64]; 157 char cv[20]; 158 159 if (tp == NULL) 160 return "(null)"; 161 if ((t = tp->t_tspec) == INT && tp->t_isenum) 162 t = ENUM; 163 164 s = basictyname(t); 165 166 cv[0] = '\0'; 167 if (tp->t_const) 168 (void)strcat(cv, "const "); 169 if (tp->t_volatile) 170 (void)strcat(cv, "volatile "); 171 172 switch (t) { 173 case BOOL: 174 case CHAR: 175 case UCHAR: 176 case SCHAR: 177 case SHORT: 178 case USHORT: 179 case INT: 180 case UINT: 181 case LONG: 182 case ULONG: 183 case QUAD: 184 case UQUAD: 185 case FLOAT: 186 case DOUBLE: 187 case LDOUBLE: 188 case VOID: 189 case FUNC: 190 case COMPLEX: 191 case FCOMPLEX: 192 case DCOMPLEX: 193 case LCOMPLEX: 194 (void)snprintf(buf, bufsiz, "%s%s", cv, s); 195 break; 196 case PTR: 197 (void)snprintf(buf, bufsiz, "%s%s to %s", cv, s, 198 tyname(lbuf, sizeof(lbuf), tp->t_subt)); 199 break; 200 case ENUM: 201 (void)snprintf(buf, bufsiz, "%s%s %s", cv, s, 202#ifdef t_enum 203 tp->t_enum->etag->s_name 204#else 205 tp->t_isuniqpos ? "*anonymous*" : tp->t_tag->h_name 206#endif 207 ); 208 break; 209 case STRUCT: 210 case UNION: 211 (void)snprintf(buf, bufsiz, "%s%s %s", cv, s, 212#ifdef t_str 213 tp->t_str->stag->s_name 214#else 215 tp->t_isuniqpos ? "*anonymous*" : tp->t_tag->h_name 216#endif 217 ); 218 break; 219 case ARRAY: 220 (void)snprintf(buf, bufsiz, "%s%s of %s[%d]", cv, s, 221 tyname(lbuf, sizeof(lbuf), tp->t_subt), tp->t_dim); 222 break; 223 default: 224 LERROR("tyname(%d)", t); 225 } 226 return (buf); 227} 228