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950cc72b | 1 | /* Copyright (C) 1995, 1996, 1999, 2000 Free Software Foundation, Inc. |
1d9ee7c7 MD |
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. */ | |
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 | ||
1d9ee7c7 MD |
45 | \f |
46 | ||
da7f71d7 MD |
47 | /* This file and objects.h contains those minimal pieces of the Guile |
48 | * Object Oriented Programming System which need to be included in | |
49 | * libguile. See the comments in objects.h. | |
1d9ee7c7 MD |
50 | */ |
51 | ||
a0599745 MD |
52 | #include "libguile/_scm.h" |
53 | ||
54 | #include "libguile/struct.h" | |
55 | #include "libguile/procprop.h" | |
56 | #include "libguile/chars.h" | |
57 | #include "libguile/keywords.h" | |
58 | #include "libguile/smob.h" | |
59 | #include "libguile/eval.h" | |
60 | #include "libguile/alist.h" | |
61 | #include "libguile/ports.h" | |
62 | #include "libguile/strings.h" | |
63 | #include "libguile/vectors.h" | |
64 | ||
65 | #include "libguile/validate.h" | |
66 | #include "libguile/objects.h" | |
1d9ee7c7 MD |
67 | \f |
68 | ||
69 | SCM scm_metaclass_standard; | |
da7f71d7 | 70 | SCM scm_metaclass_operator; |
1d9ee7c7 | 71 | |
ab7288bc MD |
72 | /* These variables are filled in by the object system when loaded. */ |
73 | SCM scm_class_boolean, scm_class_char, scm_class_pair; | |
74 | SCM scm_class_procedure, scm_class_string, scm_class_symbol; | |
9de33deb | 75 | SCM scm_class_procedure_with_setter, scm_class_primitive_generic; |
ab7288bc | 76 | SCM scm_class_vector, scm_class_null; |
ed6e0c83 MD |
77 | SCM scm_class_integer, scm_class_real, scm_class_complex; |
78 | SCM scm_class_unknown; | |
ab7288bc | 79 | |
d0efbe61 | 80 | SCM *scm_port_class = 0; |
ed6e0c83 MD |
81 | SCM *scm_smob_class = 0; |
82 | ||
9de33deb MD |
83 | SCM scm_no_applicable_method; |
84 | ||
ab7288bc MD |
85 | /* This function is used for efficient type dispatch. */ |
86 | SCM | |
87 | scm_class_of (SCM x) | |
88 | { | |
89 | switch (SCM_ITAG3 (x)) | |
90 | { | |
91 | case scm_tc3_int_1: | |
92 | case scm_tc3_int_2: | |
93 | return scm_class_integer; | |
94 | ||
95 | case scm_tc3_imm24: | |
7866a09b | 96 | if (SCM_CHARP (x)) |
ab7288bc MD |
97 | return scm_class_char; |
98 | else | |
99 | { | |
100 | switch (SCM_ISYMNUM (x)) | |
101 | { | |
102 | case SCM_ISYMNUM (SCM_BOOL_F): | |
103 | case SCM_ISYMNUM (SCM_BOOL_T): | |
104 | return scm_class_boolean; | |
105 | case SCM_ISYMNUM (SCM_EOL): | |
106 | return scm_class_null; | |
107 | default: | |
108 | return scm_class_unknown; | |
109 | } | |
110 | } | |
111 | ||
112 | case scm_tc3_cons: | |
113 | switch (SCM_TYP7 (x)) | |
114 | { | |
115 | case scm_tcs_cons_nimcar: | |
116 | return scm_class_pair; | |
117 | case scm_tcs_closures: | |
118 | return scm_class_procedure; | |
28b06554 | 119 | case scm_tc7_symbol: |
ab7288bc MD |
120 | return scm_class_symbol; |
121 | case scm_tc7_vector: | |
122 | case scm_tc7_wvect: | |
afe5177e | 123 | #ifdef HAVE_ARRAYS |
ab7288bc MD |
124 | case scm_tc7_bvect: |
125 | case scm_tc7_byvect: | |
126 | case scm_tc7_svect: | |
127 | case scm_tc7_ivect: | |
128 | case scm_tc7_uvect: | |
129 | case scm_tc7_fvect: | |
130 | case scm_tc7_dvect: | |
131 | case scm_tc7_cvect: | |
afe5177e | 132 | #endif |
ab7288bc MD |
133 | return scm_class_vector; |
134 | case scm_tc7_string: | |
135 | case scm_tc7_substring: | |
136 | return scm_class_string; | |
137 | case scm_tc7_asubr: | |
138 | case scm_tc7_subr_0: | |
139 | case scm_tc7_subr_1: | |
140 | case scm_tc7_cxr: | |
141 | case scm_tc7_subr_3: | |
142 | case scm_tc7_subr_2: | |
143 | case scm_tc7_rpsubr: | |
144 | case scm_tc7_subr_1o: | |
145 | case scm_tc7_subr_2o: | |
146 | case scm_tc7_lsubr_2: | |
147 | case scm_tc7_lsubr: | |
9de33deb MD |
148 | if (SCM_SUBR_GENERIC (x) && *SCM_SUBR_GENERIC (x)) |
149 | return scm_class_primitive_generic; | |
150 | else | |
151 | return scm_class_procedure; | |
ed6e0c83 | 152 | case scm_tc7_cclo: |
ab7288bc MD |
153 | return scm_class_procedure; |
154 | case scm_tc7_pws: | |
155 | return scm_class_procedure_with_setter; | |
156 | ||
ab7288bc MD |
157 | case scm_tc7_smob: |
158 | { | |
c209c88e | 159 | long type = SCM_TYP16 (x); |
950cc72b | 160 | if (type != scm_tc16_port_with_ps) |
ed6e0c83 | 161 | return scm_smob_class[SCM_TC2SMOBNUM (type)]; |
55d54750 MD |
162 | x = SCM_PORT_WITH_PS_PORT (x); |
163 | /* fall through to ports */ | |
ab7288bc | 164 | } |
55d54750 | 165 | case scm_tc7_port: |
206d3de3 DH |
166 | return scm_port_class[(SCM_WRTNG & SCM_CELL_WORD_0 (x) |
167 | ? (SCM_RDNG & SCM_CELL_WORD_0 (x) | |
55d54750 MD |
168 | ? SCM_INOUT_PCLASS_INDEX | SCM_PTOBNUM (x) |
169 | : SCM_OUT_PCLASS_INDEX | SCM_PTOBNUM (x)) | |
170 | : SCM_IN_PCLASS_INDEX | SCM_PTOBNUM (x))]; | |
ab7288bc MD |
171 | case scm_tcs_cons_gloc: |
172 | /* must be a struct */ | |
7151229d MD |
173 | if (SCM_OBJ_CLASS_FLAGS (x) & SCM_CLASSF_GOOPS_VALID) |
174 | return SCM_CLASS_OF (x); | |
175 | else if (SCM_OBJ_CLASS_FLAGS (x) & SCM_CLASSF_GOOPS) | |
ed6e0c83 MD |
176 | { |
177 | /* Goops object */ | |
54778cd3 | 178 | if (! SCM_FALSEP (SCM_OBJ_CLASS_REDEF (x))) |
ed6e0c83 MD |
179 | scm_change_object_class (x, |
180 | SCM_CLASS_OF (x), /* old */ | |
181 | SCM_OBJ_CLASS_REDEF (x)); /* new */ | |
182 | return SCM_CLASS_OF (x); | |
183 | } | |
184 | else | |
185 | { | |
186 | /* ordinary struct */ | |
187 | SCM handle = scm_struct_create_handle (SCM_STRUCT_VTABLE (x)); | |
188 | if (SCM_NFALSEP (SCM_STRUCT_TABLE_CLASS (SCM_CDR (handle)))) | |
189 | return SCM_STRUCT_TABLE_CLASS (SCM_CDR (handle)); | |
190 | else | |
191 | { | |
192 | SCM name = SCM_STRUCT_TABLE_NAME (SCM_CDR (handle)); | |
193 | SCM class = scm_make_extended_class (SCM_NFALSEP (name) | |
b24b5e13 | 194 | ? SCM_SYMBOL_CHARS (name) |
ed6e0c83 | 195 | : 0); |
11f2a643 | 196 | SCM_SET_STRUCT_TABLE_CLASS (SCM_CDR (handle), class); |
ed6e0c83 MD |
197 | return class; |
198 | } | |
199 | } | |
ab7288bc MD |
200 | default: |
201 | if (SCM_CONSP (x)) | |
202 | return scm_class_pair; | |
203 | else | |
204 | return scm_class_unknown; | |
205 | } | |
206 | ||
207 | case scm_tc3_cons_gloc: | |
208 | case scm_tc3_tc7_1: | |
209 | case scm_tc3_tc7_2: | |
210 | case scm_tc3_closure: | |
211 | /* Never reached */ | |
212 | break; | |
213 | } | |
214 | return scm_class_unknown; | |
215 | } | |
216 | ||
a12be546 MD |
217 | /* (SCM_IM_DISPATCH ARGS N-SPECIALIZED |
218 | * #((TYPE1 ... ENV FORMALS FORM ...) ...) | |
219 | * GF) | |
220 | * | |
221 | * (SCM_IM_HASH_DISPATCH ARGS N-SPECIALIZED HASHSET MASK | |
222 | * #((TYPE1 ... ENV FORMALS FORM ...) ...) | |
223 | * GF) | |
224 | * | |
225 | * ARGS is either a list of expressions, in which case they | |
226 | * are interpreted as the arguments of an application, or | |
227 | * a non-pair, which is interpreted as a single expression | |
228 | * yielding all arguments. | |
229 | * | |
230 | * SCM_IM_DISPATCH expressions in generic functions always | |
231 | * have ARGS = the symbol `args' or the iloc #@0-0. | |
232 | * | |
233 | * Need FORMALS in order to support varying arity. This | |
234 | * also avoids the need for renaming of bindings. | |
235 | * | |
236 | * We should probably not complicate this mechanism by | |
237 | * introducing "optimizations" for getters and setters or | |
238 | * primitive methods. Getters and setter will normally be | |
239 | * compiled into @slot-[ref|set!] or a procedure call. | |
240 | * They rely on the dispatch performed before executing | |
241 | * the code which contains them. | |
242 | * | |
243 | * We might want to use a more efficient representation of | |
244 | * this form in the future, perhaps after we have introduced | |
245 | * low-level support for syntax-case macros. | |
246 | */ | |
247 | ||
9de33deb MD |
248 | SCM |
249 | scm_mcache_lookup_cmethod (SCM cache, SCM args) | |
250 | { | |
251 | int i, n, end, mask; | |
252 | SCM ls, methods, z = SCM_CDDR (cache); | |
253 | n = SCM_INUM (SCM_CAR (z)); /* maximum number of specializers */ | |
254 | methods = SCM_CADR (z); | |
255 | ||
256 | if (SCM_NIMP (methods)) | |
257 | { | |
258 | /* Prepare for linear search */ | |
259 | mask = -1; | |
260 | i = 0; | |
bfa974f0 | 261 | end = SCM_VECTOR_LENGTH (methods); |
9de33deb MD |
262 | } |
263 | else | |
264 | { | |
265 | /* Compute a hash value */ | |
266 | int hashset = SCM_INUM (methods); | |
267 | int j = n; | |
268 | mask = SCM_INUM (SCM_CAR (z = SCM_CDDR (z))); | |
269 | methods = SCM_CADR (z); | |
270 | i = 0; | |
271 | ls = args; | |
a12be546 MD |
272 | if (SCM_NIMP (ls)) |
273 | do | |
274 | { | |
d8c40b9f DH |
275 | i += SCM_STRUCT_DATA (scm_class_of (SCM_CAR (ls))) |
276 | [scm_si_hashsets + hashset]; | |
a12be546 MD |
277 | ls = SCM_CDR (ls); |
278 | } | |
4ea6a431 | 279 | while (j-- && SCM_NIMP (ls)); |
9de33deb MD |
280 | i &= mask; |
281 | end = i; | |
282 | } | |
283 | ||
284 | /* Search for match */ | |
285 | do | |
286 | { | |
287 | int j = n; | |
288 | z = SCM_VELTS (methods)[i]; | |
289 | ls = args; /* list of arguments */ | |
a12be546 MD |
290 | if (SCM_NIMP (ls)) |
291 | do | |
292 | { | |
293 | /* More arguments than specifiers => CLASS != ENV */ | |
54778cd3 | 294 | if (! SCM_EQ_P (scm_class_of (SCM_CAR (ls)), SCM_CAR (z))) |
a12be546 MD |
295 | goto next_method; |
296 | ls = SCM_CDR (ls); | |
297 | z = SCM_CDR (z); | |
298 | } | |
4ea6a431 | 299 | while (j-- && SCM_NIMP (ls)); |
9de33deb | 300 | /* Fewer arguments than specifiers => CAR != ENV */ |
0824bbb3 | 301 | if (!(SCM_IMP (SCM_CAR (z)) || SCM_CONSP (SCM_CAR (z)))) |
9de33deb MD |
302 | goto next_method; |
303 | return z; | |
304 | next_method: | |
305 | i = (i + 1) & mask; | |
306 | } while (i != end); | |
307 | return SCM_BOOL_F; | |
308 | } | |
309 | ||
310 | SCM | |
a12be546 | 311 | scm_mcache_compute_cmethod (SCM cache, SCM args) |
9de33deb MD |
312 | { |
313 | SCM cmethod = scm_mcache_lookup_cmethod (cache, args); | |
314 | if (SCM_IMP (cmethod)) | |
315 | /* No match - memoize */ | |
316 | return scm_memoize_method (cache, args); | |
317 | return cmethod; | |
318 | } | |
319 | ||
320 | SCM | |
a12be546 | 321 | scm_apply_generic (SCM gf, SCM args) |
9de33deb | 322 | { |
a12be546 | 323 | SCM cmethod = scm_mcache_compute_cmethod (SCM_ENTITY_PROCEDURE (gf), args); |
9de33deb MD |
324 | return scm_eval_body (SCM_CDR (SCM_CMETHOD_CODE (cmethod)), |
325 | SCM_EXTEND_ENV (SCM_CAR (SCM_CMETHOD_CODE (cmethod)), | |
326 | args, | |
327 | SCM_CMETHOD_ENV (cmethod))); | |
328 | } | |
329 | ||
330 | SCM | |
a12be546 | 331 | scm_call_generic_0 (SCM gf) |
9de33deb | 332 | { |
a12be546 | 333 | return scm_apply_generic (gf, SCM_EOL); |
9de33deb MD |
334 | } |
335 | ||
336 | SCM | |
a12be546 | 337 | scm_call_generic_1 (SCM gf, SCM a1) |
9de33deb | 338 | { |
a12be546 | 339 | return scm_apply_generic (gf, SCM_LIST1 (a1)); |
9de33deb MD |
340 | } |
341 | ||
342 | SCM | |
a12be546 MD |
343 | scm_call_generic_2 (SCM gf, SCM a1, SCM a2) |
344 | { | |
345 | return scm_apply_generic (gf, SCM_LIST2 (a1, a2)); | |
346 | } | |
347 | ||
348 | SCM | |
349 | scm_call_generic_3 (SCM gf, SCM a1, SCM a2, SCM a3) | |
9de33deb | 350 | { |
a12be546 | 351 | return scm_apply_generic (gf, SCM_LIST3 (a1, a2, a3)); |
9de33deb MD |
352 | } |
353 | ||
a1ec6916 | 354 | SCM_DEFINE (scm_entity_p, "entity?", 1, 0, 0, |
1bbd0b84 | 355 | (SCM obj), |
717050c8 | 356 | "") |
1bbd0b84 | 357 | #define FUNC_NAME s_scm_entity_p |
19c0dec2 | 358 | { |
0c95b57d | 359 | return SCM_BOOL(SCM_STRUCTP (obj) && SCM_I_ENTITYP (obj)); |
19c0dec2 | 360 | } |
1bbd0b84 | 361 | #undef FUNC_NAME |
19c0dec2 | 362 | |
a1ec6916 | 363 | SCM_DEFINE (scm_operator_p, "operator?", 1, 0, 0, |
1bbd0b84 | 364 | (SCM obj), |
717050c8 | 365 | "") |
1bbd0b84 | 366 | #define FUNC_NAME s_scm_operator_p |
a43a8375 | 367 | { |
0b5f3f34 | 368 | return SCM_BOOL(SCM_STRUCTP (obj) |
1bbd0b84 GB |
369 | && SCM_I_OPERATORP (obj) |
370 | && !SCM_I_ENTITYP (obj)); | |
a43a8375 | 371 | } |
1bbd0b84 | 372 | #undef FUNC_NAME |
a43a8375 | 373 | |
a1ec6916 | 374 | SCM_DEFINE (scm_set_object_procedure_x, "set-object-procedure!", 2, 0, 0, |
1bbd0b84 | 375 | (SCM obj, SCM proc), |
717050c8 | 376 | "") |
1bbd0b84 | 377 | #define FUNC_NAME s_scm_set_object_procedure_x |
47b21050 | 378 | { |
0c95b57d | 379 | SCM_ASSERT (SCM_STRUCTP (obj) |
c1a6fd8f MD |
380 | && ((SCM_CLASS_FLAGS (obj) & SCM_CLASSF_OPERATOR) |
381 | || (SCM_I_ENTITYP (obj) | |
382 | && !(SCM_OBJ_CLASS_FLAGS (obj) | |
383 | & SCM_CLASSF_PURE_GENERIC))), | |
47b21050 MD |
384 | obj, |
385 | SCM_ARG1, | |
1bbd0b84 | 386 | FUNC_NAME); |
3b3b36dd | 387 | SCM_VALIDATE_PROC (2,proc); |
a12be546 | 388 | if (SCM_I_ENTITYP (obj)) |
d8c40b9f | 389 | SCM_SET_ENTITY_PROCEDURE (obj, proc); |
a12be546 MD |
390 | else |
391 | SCM_OPERATOR_CLASS (obj)->procedure = proc; | |
47b21050 MD |
392 | return SCM_UNSPECIFIED; |
393 | } | |
1bbd0b84 | 394 | #undef FUNC_NAME |
47b21050 | 395 | |
a43a8375 | 396 | #ifdef GUILE_DEBUG |
a1ec6916 | 397 | SCM_DEFINE (scm_object_procedure, "object-procedure", 1, 0, 0, |
1bbd0b84 | 398 | (SCM obj), |
717050c8 | 399 | "") |
1bbd0b84 | 400 | #define FUNC_NAME s_scm_object_procedure |
a43a8375 | 401 | { |
0c95b57d | 402 | SCM_ASSERT (SCM_STRUCTP (obj) |
a12be546 MD |
403 | && ((SCM_CLASS_FLAGS (obj) & SCM_CLASSF_OPERATOR) |
404 | || SCM_I_ENTITYP (obj)), | |
1bbd0b84 | 405 | obj, SCM_ARG1, FUNC_NAME); |
a43a8375 | 406 | return (SCM_I_ENTITYP (obj) |
a12be546 MD |
407 | ? SCM_ENTITY_PROCEDURE (obj) |
408 | : SCM_OPERATOR_CLASS (obj)->procedure); | |
a43a8375 | 409 | } |
1bbd0b84 | 410 | #undef FUNC_NAME |
a43a8375 MD |
411 | #endif /* GUILE_DEBUG */ |
412 | ||
ed6e0c83 MD |
413 | /* The following procedures are not a part of Goops but a minimal |
414 | * object system built upon structs. They are here for those who | |
415 | * want to implement their own object system. | |
416 | */ | |
417 | ||
036737fc MD |
418 | SCM |
419 | scm_i_make_class_object (SCM meta, | |
420 | SCM layout_string, | |
421 | unsigned long flags) | |
47b21050 MD |
422 | { |
423 | SCM c; | |
036737fc | 424 | SCM layout = scm_make_struct_layout (layout_string); |
47b21050 MD |
425 | c = scm_make_struct (meta, |
426 | SCM_INUM0, | |
427 | SCM_LIST4 (layout, SCM_BOOL_F, SCM_EOL, SCM_EOL)); | |
428 | SCM_SET_CLASS_FLAGS (c, flags); | |
429 | return c; | |
430 | } | |
431 | ||
a1ec6916 | 432 | SCM_DEFINE (scm_make_class_object, "make-class-object", 2, 0, 0, |
1bbd0b84 | 433 | (SCM metaclass, SCM layout), |
717050c8 | 434 | "") |
1bbd0b84 | 435 | #define FUNC_NAME s_scm_make_class_object |
47b21050 MD |
436 | { |
437 | unsigned long flags = 0; | |
3b3b36dd GB |
438 | SCM_VALIDATE_STRUCT (1,metaclass); |
439 | SCM_VALIDATE_STRING (2,layout); | |
54778cd3 | 440 | if (SCM_EQ_P (metaclass, scm_metaclass_operator)) |
47b21050 | 441 | flags = SCM_CLASSF_OPERATOR; |
036737fc | 442 | return scm_i_make_class_object (metaclass, layout, flags); |
47b21050 | 443 | } |
1bbd0b84 | 444 | #undef FUNC_NAME |
47b21050 | 445 | |
a1ec6916 | 446 | SCM_DEFINE (scm_make_subclass_object, "make-subclass-object", 2, 0, 0, |
1bbd0b84 | 447 | (SCM class, SCM layout), |
717050c8 | 448 | "") |
1bbd0b84 | 449 | #define FUNC_NAME s_scm_make_subclass_object |
47b21050 MD |
450 | { |
451 | SCM pl; | |
3b3b36dd GB |
452 | SCM_VALIDATE_STRUCT (1,class); |
453 | SCM_VALIDATE_STRING (2,layout); | |
d8c40b9f | 454 | pl = SCM_PACK (SCM_STRUCT_DATA (class) [scm_vtable_index_layout]); |
036737fc | 455 | /* Convert symbol->string */ |
bfa974f0 | 456 | pl = scm_makfromstr (SCM_SYMBOL_CHARS (pl), SCM_SYMBOL_LENGTH (pl), 0); |
036737fc MD |
457 | return scm_i_make_class_object (SCM_STRUCT_VTABLE (class), |
458 | scm_string_append (SCM_LIST2 (pl, layout)), | |
459 | SCM_CLASS_FLAGS (class)); | |
47b21050 | 460 | } |
1bbd0b84 | 461 | #undef FUNC_NAME |
47b21050 | 462 | |
1d9ee7c7 MD |
463 | void |
464 | scm_init_objects () | |
465 | { | |
466 | SCM ms = scm_makfrom0str (SCM_METACLASS_STANDARD_LAYOUT); | |
3ce4544c | 467 | SCM mt = scm_make_vtable_vtable (ms, SCM_INUM0, |
1d9ee7c7 MD |
468 | SCM_LIST3 (SCM_BOOL_F, SCM_EOL, SCM_EOL)); |
469 | ||
da7f71d7 | 470 | SCM os = scm_makfrom0str (SCM_METACLASS_OPERATOR_LAYOUT); |
3ce4544c | 471 | SCM ot = scm_make_vtable_vtable (os, SCM_INUM0, |
da7f71d7 MD |
472 | SCM_LIST3 (SCM_BOOL_F, SCM_EOL, SCM_EOL)); |
473 | ||
1d9ee7c7 MD |
474 | SCM es = scm_makfrom0str (SCM_ENTITY_LAYOUT); |
475 | SCM el = scm_make_struct_layout (es); | |
476 | SCM et = scm_make_struct (mt, SCM_INUM0, | |
477 | SCM_LIST4 (el, SCM_BOOL_F, SCM_EOL, SCM_EOL)); | |
478 | ||
19c0dec2 | 479 | scm_sysintern ("<class>", mt); |
1d9ee7c7 | 480 | scm_metaclass_standard = mt; |
af3645c5 | 481 | scm_sysintern ("<operator-class>", ot); |
da7f71d7 MD |
482 | scm_metaclass_operator = ot; |
483 | SCM_SET_CLASS_FLAGS (et, SCM_CLASSF_OPERATOR | SCM_CLASSF_ENTITY); | |
135e76f8 | 484 | SCM_SET_CLASS_DESTRUCTOR (et, scm_struct_free_entity); |
af3645c5 | 485 | scm_sysintern ("<entity>", et); |
47b21050 | 486 | |
8dc9439f | 487 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 488 | #include "libguile/objects.x" |
8dc9439f | 489 | #endif |
1d9ee7c7 | 490 | } |
89e00824 ML |
491 | |
492 | /* | |
493 | Local Variables: | |
494 | c-file-style: "gnu" | |
495 | End: | |
496 | */ |