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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. */ |
0f2d19dd JB |
41 | \f |
42 | #include <stdio.h> | |
43 | #include "_scm.h" | |
20e6290e JB |
44 | #include "chars.h" |
45 | #include "struct.h" | |
0f2d19dd | 46 | |
20e6290e | 47 | #include "tag.h" |
0f2d19dd JB |
48 | \f |
49 | ||
50 | SCM_CONST_LONG (scm_utag_immediate_integer, "utag_immediate_integer", 0); | |
51 | SCM_CONST_LONG (scm_utag_immediate_char, "utag_immediate_char", 1); | |
52 | SCM_CONST_LONG (scm_utag_pair, "utag_pair", 2); | |
53 | SCM_CONST_LONG (scm_utag_closure, "utag_closure", 3); | |
54 | SCM_CONST_LONG (scm_utag_symbol, "utag_symbol", 4); | |
55 | SCM_CONST_LONG (scm_utag_vector, "utag_vector", 5); | |
56 | SCM_CONST_LONG (scm_utag_wvect, "utag_wvect", 6); | |
57 | SCM_CONST_LONG (scm_utag_bvect, "utag_bvect", 7); | |
58 | SCM_CONST_LONG (scm_utag_byvect, "utag_byvect", 8); | |
59 | SCM_CONST_LONG (scm_utag_svect, "utag_svect", 9); | |
60 | SCM_CONST_LONG (scm_utag_ivect, "utag_ivect", 10); | |
61 | SCM_CONST_LONG (scm_utag_uvect, "utag_uvect", 11); | |
62 | SCM_CONST_LONG (scm_utag_fvect, "utag_fvect", 12); | |
63 | SCM_CONST_LONG (scm_utag_dvect, "utag_dvect", 13); | |
64 | SCM_CONST_LONG (scm_utag_cvect, "utag_cvect", 14); | |
65 | SCM_CONST_LONG (scm_utag_string, "utag_string", 15); | |
0f2d19dd | 66 | SCM_CONST_LONG (scm_utag_substring, "utag_substring", 17); |
0f2d19dd JB |
67 | SCM_CONST_LONG (scm_utag_asubr, "utag_asubr", 19); |
68 | SCM_CONST_LONG (scm_utag_subr_0, "utag_subr_0", 20); | |
69 | SCM_CONST_LONG (scm_utag_subr_1, "utag_subr_1", 21); | |
70 | SCM_CONST_LONG (scm_utag_cxr, "utag_cxr", 22); | |
71 | SCM_CONST_LONG (scm_utag_subr_3, "utag_subr_3", 23); | |
72 | SCM_CONST_LONG (scm_utag_subr_2, "utag_subr_2", 24); | |
73 | SCM_CONST_LONG (scm_utag_rpsubr, "utag_rpsubr", 25); | |
74 | SCM_CONST_LONG (scm_utag_subr_1o, "utag_subr_1o", 26); | |
75 | SCM_CONST_LONG (scm_utag_subr_2o, "utag_subr_2o", 27); | |
76 | SCM_CONST_LONG (scm_utag_lsubr_2, "utag_lsubr_2", 28); | |
77 | SCM_CONST_LONG (scm_utag_lsubr, "utag_lsubr", 29); | |
78 | SCM_CONST_LONG (scm_utag_smob_base, "utag_smob_base", 252); | |
79 | SCM_CONST_LONG (scm_utag_port_base, "utag_port_base", 253); | |
80 | SCM_CONST_LONG (scm_utag_flag_base, "utag_flag_base", 254); | |
81 | SCM_CONST_LONG (scm_utag_struct_base, "utag_struct_base", 255); | |
82 | ||
83 | ||
84 | SCM_PROC (s_tag, "tag", 1, 0, 0, scm_tag); | |
1cc91f1b | 85 | |
0f2d19dd JB |
86 | SCM |
87 | scm_tag (x) | |
88 | SCM x; | |
0f2d19dd JB |
89 | { |
90 | switch (SCM_ITAG3 (x)) | |
91 | { | |
92 | case scm_tc3_int_1: | |
93 | case scm_tc3_int_2: | |
94 | return SCM_CDR (scm_utag_immediate_integer) ; | |
95 | ||
96 | case scm_tc3_imm24: | |
97 | if (SCM_ICHRP (x)) | |
98 | return SCM_CDR (scm_utag_immediate_char) ; | |
99 | else | |
100 | { | |
101 | int tag; | |
102 | tag = SCM_MAKINUM ((x >> 8) & 0xff); | |
103 | return SCM_MAKINUM (SCM_INUM (SCM_CDR (scm_utag_flag_base) ) | (tag << 8)); | |
104 | } | |
105 | ||
106 | case scm_tc3_cons: | |
107 | switch (SCM_TYP7 (x)) | |
108 | { | |
109 | case scm_tcs_cons_nimcar: | |
110 | return SCM_CDR (scm_utag_pair) ; | |
111 | case scm_tcs_closures: | |
112 | return SCM_CDR (scm_utag_closure) ; | |
113 | case scm_tcs_symbols: | |
114 | return SCM_CDR (scm_utag_symbol) ; | |
115 | case scm_tc7_vector: | |
116 | return SCM_CDR (scm_utag_vector) ; | |
117 | case scm_tc7_wvect: | |
118 | return SCM_CDR (scm_utag_wvect) ; | |
119 | case scm_tc7_bvect: | |
120 | return SCM_CDR (scm_utag_bvect) ; | |
121 | case scm_tc7_byvect: | |
122 | return SCM_CDR (scm_utag_byvect) ; | |
123 | case scm_tc7_svect: | |
124 | return SCM_CDR (scm_utag_svect) ; | |
125 | case scm_tc7_ivect: | |
126 | return SCM_CDR (scm_utag_ivect) ; | |
127 | case scm_tc7_uvect: | |
128 | return SCM_CDR (scm_utag_uvect) ; | |
129 | case scm_tc7_fvect: | |
130 | return SCM_CDR (scm_utag_fvect) ; | |
131 | case scm_tc7_dvect: | |
132 | return SCM_CDR (scm_utag_dvect) ; | |
133 | case scm_tc7_cvect: | |
134 | return SCM_CDR (scm_utag_cvect) ; | |
135 | case scm_tc7_string: | |
136 | return SCM_CDR (scm_utag_string) ; | |
0f2d19dd JB |
137 | case scm_tc7_substring: |
138 | return SCM_CDR (scm_utag_substring) ; | |
0f2d19dd JB |
139 | case scm_tc7_asubr: |
140 | return SCM_CDR (scm_utag_asubr) ; | |
141 | case scm_tc7_subr_0: | |
142 | return SCM_CDR (scm_utag_subr_0) ; | |
143 | case scm_tc7_subr_1: | |
144 | return SCM_CDR (scm_utag_subr_1) ; | |
145 | case scm_tc7_cxr: | |
146 | return SCM_CDR (scm_utag_cxr) ; | |
147 | case scm_tc7_subr_3: | |
148 | return SCM_CDR (scm_utag_subr_3) ; | |
149 | case scm_tc7_subr_2: | |
150 | return SCM_CDR (scm_utag_subr_2) ; | |
151 | case scm_tc7_rpsubr: | |
152 | return SCM_CDR (scm_utag_rpsubr) ; | |
153 | case scm_tc7_subr_1o: | |
154 | return SCM_CDR (scm_utag_subr_1o) ; | |
155 | case scm_tc7_subr_2o: | |
156 | return SCM_CDR (scm_utag_subr_2o) ; | |
157 | case scm_tc7_lsubr_2: | |
158 | return SCM_CDR (scm_utag_lsubr_2) ; | |
159 | case scm_tc7_lsubr: | |
160 | return SCM_CDR (scm_utag_lsubr) ; | |
161 | ||
162 | case scm_tc7_port: | |
163 | { | |
164 | int tag; | |
165 | tag = (SCM_TYP16 (x) >> 8) & 0xff; | |
166 | return SCM_MAKINUM (SCM_INUM (SCM_CDR (scm_utag_port_base)) | (tag << 8)); | |
167 | } | |
168 | case scm_tc7_smob: | |
169 | { | |
170 | int tag; | |
171 | tag = (SCM_TYP16 (x) >> 8) & 0xff; | |
cdbadcac JB |
172 | return SCM_MAKINUM (SCM_INUM (SCM_CDR (scm_utag_smob_base)) |
173 | | (tag << 8)); | |
0f2d19dd JB |
174 | } |
175 | case scm_tcs_cons_gloc: | |
176 | /* must be a struct */ | |
177 | { | |
178 | int tag; | |
179 | tag = SCM_STRUCT_VTABLE_DATA (x)[scm_struct_i_tag]; | |
cdbadcac JB |
180 | return SCM_MAKINUM (SCM_INUM (SCM_CDR (scm_utag_struct_base)) |
181 | | (tag << 8)); | |
0f2d19dd | 182 | } |
0f2d19dd JB |
183 | |
184 | default: | |
185 | if (SCM_CONSP (x)) | |
186 | return SCM_CDR (scm_utag_pair); | |
187 | else | |
188 | return SCM_MAKINUM (-1); | |
189 | } | |
190 | ||
191 | case scm_tc3_cons_gloc: | |
192 | case scm_tc3_tc7_1: | |
193 | case scm_tc3_tc7_2: | |
194 | case scm_tc3_closure: | |
195 | /* Never reached */ | |
196 | break; | |
197 | } | |
198 | return SCM_MAKINUM (-1); | |
199 | } | |
200 | ||
201 | ||
202 | \f | |
203 | ||
1cc91f1b | 204 | |
0f2d19dd JB |
205 | void |
206 | scm_init_tag () | |
0f2d19dd JB |
207 | { |
208 | #include "tag.x" | |
209 | } | |
210 |