| 1 | /* Copyright (C) 1996, 1997, 2000 Free Software Foundation, Inc. |
| 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License as published by |
| 5 | * the Free Software Foundation; either version 2, or (at your option) |
| 6 | * any later version. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, |
| 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | * GNU General Public License for more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License |
| 14 | * along with this software; see the file COPYING. If not, write to |
| 15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
| 16 | * Boston, MA 02111-1307 USA |
| 17 | * |
| 18 | * As a special exception, the Free Software Foundation gives permission |
| 19 | * for additional uses of the text contained in its release of GUILE. |
| 20 | * |
| 21 | * The exception is that, if you link the GUILE library with other files |
| 22 | * to produce an executable, this does not by itself cause the |
| 23 | * resulting executable to be covered by the GNU General Public License. |
| 24 | * Your use of that executable is in no way restricted on account of |
| 25 | * linking the GUILE library code into it. |
| 26 | * |
| 27 | * This exception does not however invalidate any other reasons why |
| 28 | * the executable file might be covered by the GNU General Public License. |
| 29 | * |
| 30 | * This exception applies only to the code released by the |
| 31 | * Free Software Foundation under the name GUILE. If you copy |
| 32 | * code from other Free Software Foundation releases into a copy of |
| 33 | * GUILE, as the General Public License permits, the exception does |
| 34 | * not apply to the code that you add in this way. To avoid misleading |
| 35 | * anyone as to the status of such modified files, you must delete |
| 36 | * this exception notice from them. |
| 37 | * |
| 38 | * If you write modifications of your own for GUILE, it is your choice |
| 39 | * whether to permit this exception to apply to your modifications. |
| 40 | * If you do not wish that, delete this exception notice. */ |
| 41 | |
| 42 | /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999, |
| 43 | gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */ |
| 44 | |
| 45 | \f |
| 46 | #include <stdio.h> |
| 47 | #include "libguile/_scm.h" |
| 48 | #include "libguile/chars.h" |
| 49 | #include "libguile/struct.h" |
| 50 | |
| 51 | #include "libguile/tag.h" |
| 52 | \f |
| 53 | |
| 54 | SCM_CONST_LONG (scm_utag_immediate_integer, "utag_immediate_integer", 0); |
| 55 | SCM_CONST_LONG (scm_utag_immediate_char, "utag_immediate_char", 1); |
| 56 | SCM_CONST_LONG (scm_utag_pair, "utag_pair", 2); |
| 57 | SCM_CONST_LONG (scm_utag_closure, "utag_closure", 3); |
| 58 | SCM_CONST_LONG (scm_utag_symbol, "utag_symbol", 4); |
| 59 | SCM_CONST_LONG (scm_utag_vector, "utag_vector", 5); |
| 60 | SCM_CONST_LONG (scm_utag_wvect, "utag_wvect", 6); |
| 61 | |
| 62 | #ifdef HAVE_ARRAYS |
| 63 | SCM_CONST_LONG (scm_utag_bvect, "utag_bvect", 7); |
| 64 | SCM_CONST_LONG (scm_utag_byvect, "utag_byvect", 8); |
| 65 | SCM_CONST_LONG (scm_utag_svect, "utag_svect", 9); |
| 66 | SCM_CONST_LONG (scm_utag_ivect, "utag_ivect", 10); |
| 67 | SCM_CONST_LONG (scm_utag_uvect, "utag_uvect", 11); |
| 68 | SCM_CONST_LONG (scm_utag_fvect, "utag_fvect", 12); |
| 69 | SCM_CONST_LONG (scm_utag_dvect, "utag_dvect", 13); |
| 70 | SCM_CONST_LONG (scm_utag_cvect, "utag_cvect", 14); |
| 71 | #endif |
| 72 | |
| 73 | SCM_CONST_LONG (scm_utag_string, "utag_string", 15); |
| 74 | SCM_CONST_LONG (scm_utag_substring, "utag_substring", 17); |
| 75 | SCM_CONST_LONG (scm_utag_asubr, "utag_asubr", 19); |
| 76 | SCM_CONST_LONG (scm_utag_subr_0, "utag_subr_0", 20); |
| 77 | SCM_CONST_LONG (scm_utag_subr_1, "utag_subr_1", 21); |
| 78 | SCM_CONST_LONG (scm_utag_cxr, "utag_cxr", 22); |
| 79 | SCM_CONST_LONG (scm_utag_subr_3, "utag_subr_3", 23); |
| 80 | SCM_CONST_LONG (scm_utag_subr_2, "utag_subr_2", 24); |
| 81 | SCM_CONST_LONG (scm_utag_rpsubr, "utag_rpsubr", 25); |
| 82 | SCM_CONST_LONG (scm_utag_subr_1o, "utag_subr_1o", 26); |
| 83 | SCM_CONST_LONG (scm_utag_subr_2o, "utag_subr_2o", 27); |
| 84 | SCM_CONST_LONG (scm_utag_lsubr_2, "utag_lsubr_2", 28); |
| 85 | SCM_CONST_LONG (scm_utag_lsubr, "utag_lsubr", 29); |
| 86 | SCM_CONST_LONG (scm_utag_smob_base, "utag_smob_base", 252); |
| 87 | SCM_CONST_LONG (scm_utag_port_base, "utag_port_base", 253); |
| 88 | SCM_CONST_LONG (scm_utag_flag_base, "utag_flag_base", 254); |
| 89 | SCM_CONST_LONG (scm_utag_struct_base, "utag_struct_base", 255); |
| 90 | |
| 91 | |
| 92 | #if (SCM_DEBUG_DEPRECATED == 0) |
| 93 | |
| 94 | SCM_DEFINE (scm_tag, "tag", 1, 0, 0, |
| 95 | (SCM x), |
| 96 | "Return an integer corresponding to the type of X. Deprecated.") |
| 97 | #define FUNC_NAME s_scm_tag |
| 98 | { |
| 99 | switch (SCM_ITAG3 (x)) |
| 100 | { |
| 101 | case scm_tc3_int_1: |
| 102 | case scm_tc3_int_2: |
| 103 | return SCM_CDR (scm_utag_immediate_integer) ; |
| 104 | |
| 105 | case scm_tc3_imm24: |
| 106 | if (SCM_CHARP (x)) |
| 107 | return SCM_CDR (scm_utag_immediate_char) ; |
| 108 | else |
| 109 | { |
| 110 | SCM tag = SCM_MAKINUM ((SCM_UNPACK (x) >> 8) & 0xff); |
| 111 | return SCM_MAKINUM (SCM_INUM (SCM_CDR (scm_utag_flag_base) ) | (SCM_UNPACK (tag) << 8)); |
| 112 | } |
| 113 | |
| 114 | case scm_tc3_cons: |
| 115 | switch (SCM_TYP7 (x)) |
| 116 | { |
| 117 | case scm_tcs_cons_nimcar: |
| 118 | return SCM_CDR (scm_utag_pair) ; |
| 119 | case scm_tcs_closures: |
| 120 | return SCM_CDR (scm_utag_closure) ; |
| 121 | case scm_tc7_symbol: |
| 122 | return SCM_CDR (scm_utag_symbol) ; |
| 123 | case scm_tc7_vector: |
| 124 | return SCM_CDR (scm_utag_vector) ; |
| 125 | case scm_tc7_wvect: |
| 126 | return SCM_CDR (scm_utag_wvect) ; |
| 127 | |
| 128 | #ifdef HAVE_ARRAYS |
| 129 | case scm_tc7_bvect: |
| 130 | return SCM_CDR (scm_utag_bvect) ; |
| 131 | case scm_tc7_byvect: |
| 132 | return SCM_CDR (scm_utag_byvect) ; |
| 133 | case scm_tc7_svect: |
| 134 | return SCM_CDR (scm_utag_svect) ; |
| 135 | case scm_tc7_ivect: |
| 136 | return SCM_CDR (scm_utag_ivect) ; |
| 137 | case scm_tc7_uvect: |
| 138 | return SCM_CDR (scm_utag_uvect) ; |
| 139 | case scm_tc7_fvect: |
| 140 | return SCM_CDR (scm_utag_fvect) ; |
| 141 | case scm_tc7_dvect: |
| 142 | return SCM_CDR (scm_utag_dvect) ; |
| 143 | case scm_tc7_cvect: |
| 144 | return SCM_CDR (scm_utag_cvect) ; |
| 145 | #endif |
| 146 | |
| 147 | case scm_tc7_string: |
| 148 | return SCM_CDR (scm_utag_string) ; |
| 149 | case scm_tc7_substring: |
| 150 | return SCM_CDR (scm_utag_substring) ; |
| 151 | case scm_tc7_asubr: |
| 152 | return SCM_CDR (scm_utag_asubr) ; |
| 153 | case scm_tc7_subr_0: |
| 154 | return SCM_CDR (scm_utag_subr_0) ; |
| 155 | case scm_tc7_subr_1: |
| 156 | return SCM_CDR (scm_utag_subr_1) ; |
| 157 | case scm_tc7_cxr: |
| 158 | return SCM_CDR (scm_utag_cxr) ; |
| 159 | case scm_tc7_subr_3: |
| 160 | return SCM_CDR (scm_utag_subr_3) ; |
| 161 | case scm_tc7_subr_2: |
| 162 | return SCM_CDR (scm_utag_subr_2) ; |
| 163 | case scm_tc7_rpsubr: |
| 164 | return SCM_CDR (scm_utag_rpsubr) ; |
| 165 | case scm_tc7_subr_1o: |
| 166 | return SCM_CDR (scm_utag_subr_1o) ; |
| 167 | case scm_tc7_subr_2o: |
| 168 | return SCM_CDR (scm_utag_subr_2o) ; |
| 169 | case scm_tc7_lsubr_2: |
| 170 | return SCM_CDR (scm_utag_lsubr_2) ; |
| 171 | case scm_tc7_lsubr: |
| 172 | return SCM_CDR (scm_utag_lsubr) ; |
| 173 | |
| 174 | case scm_tc7_port: |
| 175 | { |
| 176 | int tag; |
| 177 | tag = (SCM_TYP16 (x) >> 8) & 0xff; |
| 178 | return SCM_MAKINUM (SCM_INUM (SCM_CDR (scm_utag_port_base)) | (tag << 8)); |
| 179 | } |
| 180 | case scm_tc7_smob: |
| 181 | { |
| 182 | int tag; |
| 183 | tag = (SCM_TYP16 (x) >> 8) & 0xff; |
| 184 | return SCM_MAKINUM (SCM_INUM (SCM_CDR (scm_utag_smob_base)) |
| 185 | | (tag << 8)); |
| 186 | } |
| 187 | case scm_tcs_cons_gloc: |
| 188 | /* must be a struct */ |
| 189 | { |
| 190 | int tag = (int) SCM_STRUCT_VTABLE_DATA (x) >> 3; |
| 191 | return SCM_MAKINUM (SCM_INUM (SCM_CDR (scm_utag_struct_base)) |
| 192 | | (tag << 8)); |
| 193 | } |
| 194 | |
| 195 | default: |
| 196 | if (SCM_CONSP (x)) |
| 197 | return SCM_CDR (scm_utag_pair); |
| 198 | else |
| 199 | return SCM_MAKINUM (-1); |
| 200 | } |
| 201 | |
| 202 | case scm_tc3_cons_gloc: |
| 203 | case scm_tc3_tc7_1: |
| 204 | case scm_tc3_tc7_2: |
| 205 | case scm_tc3_closure: |
| 206 | /* Never reached */ |
| 207 | break; |
| 208 | } |
| 209 | return SCM_MAKINUM (-1); |
| 210 | } |
| 211 | #undef FUNC_NAME |
| 212 | |
| 213 | #endif /* SCM_DEBUG_DEPRECATED == 0 */ |
| 214 | |
| 215 | \f |
| 216 | |
| 217 | |
| 218 | void |
| 219 | scm_init_tag () |
| 220 | { |
| 221 | #ifndef SCM_MAGIC_SNARFER |
| 222 | #include "libguile/tag.x" |
| 223 | #endif |
| 224 | } |
| 225 | |
| 226 | |
| 227 | /* |
| 228 | Local Variables: |
| 229 | c-file-style: "gnu" |
| 230 | End: |
| 231 | */ |