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tyname.c revision 1.9 
      1 /*	$NetBSD: tyname.c,v 1.9 2008/09/26 22:52:24 matt 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 1.9 2008/09/26 22:52:24 matt 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 	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 
     91 const char *
     92 tyname(char *buf, size_t bufsiz, type_t *tp)
     93 {
     94 	tspec_t	t;
     95 	const	char *s;
     96 	char lbuf[64];
     97 	char cv[20];
     98 
     99 	if ((t = tp->t_tspec) == INT && tp->t_isenum)
    100 		t = ENUM;
    101 
    102 	s = basictyname(t);
    103 
    104 	cv[0] = '\0';
    105 	if (tp->t_const)
    106 		(void)strcat(cv, "const ");
    107 	if (tp->t_volatile)
    108 		(void)strcat(cv, "volatile ");
    109 
    110 	switch (t) {
    111 	case BOOL:
    112 	case CHAR:
    113 	case UCHAR:
    114 	case SCHAR:
    115 	case SHORT:
    116 	case USHORT:
    117 	case INT:
    118 	case UINT:
    119 	case LONG:
    120 	case ULONG:
    121 	case QUAD:
    122 	case UQUAD:
    123 	case FLOAT:
    124 	case DOUBLE:
    125 	case LDOUBLE:
    126 	case VOID:
    127 	case FUNC:
    128 	case COMPLEX:
    129 	case FCOMPLEX:
    130 	case DCOMPLEX:
    131 		(void)snprintf(buf, bufsiz, "%s%s", cv, s);
    132 		break;
    133 	case PTR:
    134 		(void)snprintf(buf, bufsiz, "%s%s to %s", cv, s,
    135 		    tyname(lbuf, sizeof(lbuf), tp->t_subt));
    136 		break;
    137 	case ENUM:
    138 		(void)snprintf(buf, bufsiz, "%s%s %s", cv, s,
    139 #ifdef t_enum
    140 		    tp->t_enum->etag->s_name
    141 #else
    142 		    tp->t_isuniqpos ? "*anonymous*" : tp->t_tag->h_name
    143 #endif
    144 		    );
    145 		break;
    146 	case STRUCT:
    147 	case UNION:
    148 		(void)snprintf(buf, bufsiz, "%s%s %s", cv, s,
    149 #ifdef t_str
    150 		    tp->t_str->stag->s_name
    151 #else
    152 		    tp->t_isuniqpos ? "*anonymous*" : tp->t_tag->h_name
    153 #endif
    154 		    );
    155 		break;
    156 	case ARRAY:
    157 		(void)snprintf(buf, bufsiz, "%s%s of %s[%d]", cv, s,
    158 		    tyname(lbuf, sizeof(lbuf), tp->t_subt), tp->t_dim);
    159 		break;
    160 	default:
    161 		LERROR("tyname(%d)", t);
    162 	}
    163 	return (buf);
    164 }
    165