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b7f3516f | 1 | /* Copyright (C) 1996, 1997 Free Software Foundation, Inc. |
0f2d19dd JB |
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 | |
82892bed JB |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
16 | * Boston, MA 02111-1307 USA | |
0f2d19dd JB |
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. | |
82892bed | 40 | * If you do not wish that, delete this exception notice. */ |
1bbd0b84 GB |
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 | ||
0f2d19dd JB |
45 | \f |
46 | #include <stdio.h> | |
a0599745 MD |
47 | #include "libguile/_scm.h" |
48 | #include "libguile/chars.h" | |
49 | #include "libguile/struct.h" | |
0f2d19dd | 50 | |
a0599745 | 51 | #include "libguile/tag.h" |
0f2d19dd JB |
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); | |
afe5177e GH |
61 | |
62 | #ifdef HAVE_ARRAYS | |
0f2d19dd JB |
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); | |
afe5177e GH |
71 | #endif |
72 | ||
0f2d19dd | 73 | SCM_CONST_LONG (scm_utag_string, "utag_string", 15); |
0f2d19dd | 74 | SCM_CONST_LONG (scm_utag_substring, "utag_substring", 17); |
0f2d19dd JB |
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 | ||
a1ec6916 | 92 | SCM_DEFINE (scm_tag, "tag", 1, 0, 0, |
1bbd0b84 | 93 | (SCM x), |
6fa73e72 | 94 | "Return an integer corresponding to the type of X. Deprecated.") |
1bbd0b84 | 95 | #define FUNC_NAME s_scm_tag |
0f2d19dd JB |
96 | { |
97 | switch (SCM_ITAG3 (x)) | |
98 | { | |
99 | case scm_tc3_int_1: | |
100 | case scm_tc3_int_2: | |
101 | return SCM_CDR (scm_utag_immediate_integer) ; | |
102 | ||
103 | case scm_tc3_imm24: | |
7866a09b | 104 | if (SCM_CHARP (x)) |
0f2d19dd JB |
105 | return SCM_CDR (scm_utag_immediate_char) ; |
106 | else | |
107 | { | |
f1267706 MD |
108 | SCM tag = SCM_MAKINUM ((SCM_UNPACK (x) >> 8) & 0xff); |
109 | return SCM_MAKINUM (SCM_INUM (SCM_CDR (scm_utag_flag_base) ) | (SCM_UNPACK (tag) << 8)); | |
0f2d19dd JB |
110 | } |
111 | ||
112 | case scm_tc3_cons: | |
113 | switch (SCM_TYP7 (x)) | |
114 | { | |
115 | case scm_tcs_cons_nimcar: | |
116 | return SCM_CDR (scm_utag_pair) ; | |
117 | case scm_tcs_closures: | |
118 | return SCM_CDR (scm_utag_closure) ; | |
119 | case scm_tcs_symbols: | |
120 | return SCM_CDR (scm_utag_symbol) ; | |
121 | case scm_tc7_vector: | |
122 | return SCM_CDR (scm_utag_vector) ; | |
123 | case scm_tc7_wvect: | |
124 | return SCM_CDR (scm_utag_wvect) ; | |
afe5177e GH |
125 | |
126 | #ifdef HAVE_ARRAYS | |
0f2d19dd JB |
127 | case scm_tc7_bvect: |
128 | return SCM_CDR (scm_utag_bvect) ; | |
129 | case scm_tc7_byvect: | |
130 | return SCM_CDR (scm_utag_byvect) ; | |
131 | case scm_tc7_svect: | |
132 | return SCM_CDR (scm_utag_svect) ; | |
133 | case scm_tc7_ivect: | |
134 | return SCM_CDR (scm_utag_ivect) ; | |
135 | case scm_tc7_uvect: | |
136 | return SCM_CDR (scm_utag_uvect) ; | |
137 | case scm_tc7_fvect: | |
138 | return SCM_CDR (scm_utag_fvect) ; | |
139 | case scm_tc7_dvect: | |
140 | return SCM_CDR (scm_utag_dvect) ; | |
141 | case scm_tc7_cvect: | |
142 | return SCM_CDR (scm_utag_cvect) ; | |
afe5177e GH |
143 | #endif |
144 | ||
0f2d19dd JB |
145 | case scm_tc7_string: |
146 | return SCM_CDR (scm_utag_string) ; | |
0f2d19dd JB |
147 | case scm_tc7_substring: |
148 | return SCM_CDR (scm_utag_substring) ; | |
0f2d19dd JB |
149 | case scm_tc7_asubr: |
150 | return SCM_CDR (scm_utag_asubr) ; | |
151 | case scm_tc7_subr_0: | |
152 | return SCM_CDR (scm_utag_subr_0) ; | |
153 | case scm_tc7_subr_1: | |
154 | return SCM_CDR (scm_utag_subr_1) ; | |
155 | case scm_tc7_cxr: | |
156 | return SCM_CDR (scm_utag_cxr) ; | |
157 | case scm_tc7_subr_3: | |
158 | return SCM_CDR (scm_utag_subr_3) ; | |
159 | case scm_tc7_subr_2: | |
160 | return SCM_CDR (scm_utag_subr_2) ; | |
161 | case scm_tc7_rpsubr: | |
162 | return SCM_CDR (scm_utag_rpsubr) ; | |
163 | case scm_tc7_subr_1o: | |
164 | return SCM_CDR (scm_utag_subr_1o) ; | |
165 | case scm_tc7_subr_2o: | |
166 | return SCM_CDR (scm_utag_subr_2o) ; | |
167 | case scm_tc7_lsubr_2: | |
168 | return SCM_CDR (scm_utag_lsubr_2) ; | |
169 | case scm_tc7_lsubr: | |
170 | return SCM_CDR (scm_utag_lsubr) ; | |
171 | ||
172 | case scm_tc7_port: | |
173 | { | |
174 | int tag; | |
175 | tag = (SCM_TYP16 (x) >> 8) & 0xff; | |
176 | return SCM_MAKINUM (SCM_INUM (SCM_CDR (scm_utag_port_base)) | (tag << 8)); | |
177 | } | |
178 | case scm_tc7_smob: | |
179 | { | |
180 | int tag; | |
181 | tag = (SCM_TYP16 (x) >> 8) & 0xff; | |
cdbadcac JB |
182 | return SCM_MAKINUM (SCM_INUM (SCM_CDR (scm_utag_smob_base)) |
183 | | (tag << 8)); | |
0f2d19dd JB |
184 | } |
185 | case scm_tcs_cons_gloc: | |
186 | /* must be a struct */ | |
187 | { | |
ff2961ec | 188 | int tag = (int) SCM_STRUCT_VTABLE_DATA (x) >> 3; |
cdbadcac JB |
189 | return SCM_MAKINUM (SCM_INUM (SCM_CDR (scm_utag_struct_base)) |
190 | | (tag << 8)); | |
0f2d19dd | 191 | } |
0f2d19dd JB |
192 | |
193 | default: | |
194 | if (SCM_CONSP (x)) | |
195 | return SCM_CDR (scm_utag_pair); | |
196 | else | |
197 | return SCM_MAKINUM (-1); | |
198 | } | |
199 | ||
200 | case scm_tc3_cons_gloc: | |
201 | case scm_tc3_tc7_1: | |
202 | case scm_tc3_tc7_2: | |
203 | case scm_tc3_closure: | |
204 | /* Never reached */ | |
205 | break; | |
206 | } | |
207 | return SCM_MAKINUM (-1); | |
208 | } | |
1bbd0b84 | 209 | #undef FUNC_NAME |
0f2d19dd JB |
210 | |
211 | ||
212 | \f | |
213 | ||
1cc91f1b | 214 | |
0f2d19dd JB |
215 | void |
216 | scm_init_tag () | |
0f2d19dd | 217 | { |
a0599745 | 218 | #include "libguile/tag.x" |
0f2d19dd JB |
219 | } |
220 | ||
89e00824 ML |
221 | |
222 | /* | |
223 | Local Variables: | |
224 | c-file-style: "gnu" | |
225 | End: | |
226 | */ |