1 /* Copyright (C) 1996 Free Software Foundation, Inc.
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)
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.
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, 675 Mass Ave, Cambridge, MA 02139, USA.
17 * As a special exception, the Free Software Foundation gives permission
18 * for additional uses of the text contained in its release of GUILE.
20 * The exception is that, if you link the GUILE library with other files
21 * to produce an executable, this does not by itself cause the
22 * resulting executable to be covered by the GNU General Public License.
23 * Your use of that executable is in no way restricted on account of
24 * linking the GUILE library code into it.
26 * This exception does not however invalidate any other reasons why
27 * the executable file might be covered by the GNU General Public License.
29 * This exception applies only to the code released by the
30 * Free Software Foundation under the name GUILE. If you copy
31 * code from other Free Software Foundation releases into a copy of
32 * GUILE, as the General Public License permits, the exception does
33 * not apply to the code that you add in this way. To avoid misleading
34 * anyone as to the status of such modified files, you must delete
35 * this exception notice from them.
37 * If you write modifications of your own for GUILE, it is your choice
38 * whether to permit this exception to apply to your modifications.
39 * If you do not wish that, delete this exception notice.
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);
66 SCM_CONST_LONG (scm_utag_mb_string
, "utag_mb_string", 16);
67 SCM_CONST_LONG (scm_utag_substring
, "utag_substring", 17);
68 SCM_CONST_LONG (scm_utag_mb_substring
, "utag_mb_substring", 18);
69 SCM_CONST_LONG (scm_utag_asubr
, "utag_asubr", 19);
70 SCM_CONST_LONG (scm_utag_subr_0
, "utag_subr_0", 20);
71 SCM_CONST_LONG (scm_utag_subr_1
, "utag_subr_1", 21);
72 SCM_CONST_LONG (scm_utag_cxr
, "utag_cxr", 22);
73 SCM_CONST_LONG (scm_utag_subr_3
, "utag_subr_3", 23);
74 SCM_CONST_LONG (scm_utag_subr_2
, "utag_subr_2", 24);
75 SCM_CONST_LONG (scm_utag_rpsubr
, "utag_rpsubr", 25);
76 SCM_CONST_LONG (scm_utag_subr_1o
, "utag_subr_1o", 26);
77 SCM_CONST_LONG (scm_utag_subr_2o
, "utag_subr_2o", 27);
78 SCM_CONST_LONG (scm_utag_lsubr_2
, "utag_lsubr_2", 28);
79 SCM_CONST_LONG (scm_utag_lsubr
, "utag_lsubr", 29);
80 SCM_CONST_LONG (scm_utag_smob_base
, "utag_smob_base", 252);
81 SCM_CONST_LONG (scm_utag_port_base
, "utag_port_base", 253);
82 SCM_CONST_LONG (scm_utag_flag_base
, "utag_flag_base", 254);
83 SCM_CONST_LONG (scm_utag_struct_base
, "utag_struct_base", 255);
86 SCM_PROC (s_tag
, "tag", 1, 0, 0, scm_tag
);
92 switch (SCM_ITAG3 (x
))
96 return SCM_CDR (scm_utag_immediate_integer
) ;
100 return SCM_CDR (scm_utag_immediate_char
) ;
104 tag
= SCM_MAKINUM ((x
>> 8) & 0xff);
105 return SCM_MAKINUM (SCM_INUM (SCM_CDR (scm_utag_flag_base
) ) | (tag
<< 8));
109 switch (SCM_TYP7 (x
))
111 case scm_tcs_cons_nimcar
:
112 return SCM_CDR (scm_utag_pair
) ;
113 case scm_tcs_closures
:
114 return SCM_CDR (scm_utag_closure
) ;
115 case scm_tcs_symbols
:
116 return SCM_CDR (scm_utag_symbol
) ;
118 return SCM_CDR (scm_utag_vector
) ;
120 return SCM_CDR (scm_utag_wvect
) ;
122 return SCM_CDR (scm_utag_bvect
) ;
124 return SCM_CDR (scm_utag_byvect
) ;
126 return SCM_CDR (scm_utag_svect
) ;
128 return SCM_CDR (scm_utag_ivect
) ;
130 return SCM_CDR (scm_utag_uvect
) ;
132 return SCM_CDR (scm_utag_fvect
) ;
134 return SCM_CDR (scm_utag_dvect
) ;
136 return SCM_CDR (scm_utag_cvect
) ;
138 return SCM_CDR (scm_utag_string
) ;
139 case scm_tc7_mb_string
:
140 return SCM_CDR (scm_utag_mb_string
) ;
141 case scm_tc7_substring
:
142 return SCM_CDR (scm_utag_substring
) ;
143 case scm_tc7_mb_substring
:
144 return SCM_CDR (scm_utag_mb_substring
) ;
146 return SCM_CDR (scm_utag_asubr
) ;
148 return SCM_CDR (scm_utag_subr_0
) ;
150 return SCM_CDR (scm_utag_subr_1
) ;
152 return SCM_CDR (scm_utag_cxr
) ;
154 return SCM_CDR (scm_utag_subr_3
) ;
156 return SCM_CDR (scm_utag_subr_2
) ;
158 return SCM_CDR (scm_utag_rpsubr
) ;
159 case scm_tc7_subr_1o
:
160 return SCM_CDR (scm_utag_subr_1o
) ;
161 case scm_tc7_subr_2o
:
162 return SCM_CDR (scm_utag_subr_2o
) ;
163 case scm_tc7_lsubr_2
:
164 return SCM_CDR (scm_utag_lsubr_2
) ;
166 return SCM_CDR (scm_utag_lsubr
) ;
171 tag
= (SCM_TYP16 (x
) >> 8) & 0xff;
172 return SCM_MAKINUM (SCM_INUM (SCM_CDR (scm_utag_port_base
)) | (tag
<< 8));
177 tag
= (SCM_TYP16 (x
) >> 8) & 0xff;
178 return SCM_MAKINUM (SCM_INUM (SCM_CDR (scm_utag_smob_base
)) | (tag
<< 8));
180 case scm_tcs_cons_gloc
:
181 /* must be a struct */
184 tag
= SCM_STRUCT_VTABLE_DATA (x
)[scm_struct_i_tag
];
185 return SCM_MAKINUM (SCM_INUM (SCM_CDR (scm_utag_struct_base
)) | (tag
<< 8));
187 return SCM_CDR (scm_utag_struct_base
) ;
191 return SCM_CDR (scm_utag_pair
);
193 return SCM_MAKINUM (-1);
196 case scm_tc3_cons_gloc
:
199 case scm_tc3_closure
:
203 return SCM_MAKINUM (-1);