Commit | Line | Data |
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e2fafeb9 | 1 | /* Copyright (C) 1998,1999,2000,2001,2002,2003,2004,2008,2009,2010,2011,2012,2013,2014,2015 |
366ecaec | 2 | * Free Software Foundation, Inc. |
6d77c894 | 3 | * |
73be1d9e | 4 | * This library is free software; you can redistribute it and/or |
53befeb7 NJ |
5 | * modify it under the terms of the GNU Lesser General Public License |
6 | * as published by the Free Software Foundation; either version 3 of | |
7 | * the License, or (at your option) any later version. | |
6d77c894 | 8 | * |
53befeb7 NJ |
9 | * This library is distributed in the hope that it will be useful, but |
10 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
73be1d9e MV |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | * Lesser General Public License for more details. | |
6d77c894 | 13 | * |
73be1d9e MV |
14 | * You should have received a copy of the GNU Lesser General Public |
15 | * License along with this library; if not, write to the Free Software | |
53befeb7 NJ |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
17 | * 02110-1301 USA | |
73be1d9e | 18 | */ |
80662eda MD |
19 | \f |
20 | ||
21 | /* This software is a derivative work of other copyrighted softwares; the | |
22 | * copyright notices of these softwares are placed in the file COPYRIGHTS | |
23 | * | |
24 | * This file is based upon stklos.c from the STk distribution by | |
25 | * Erick Gallesio <eg@unice.fr>. | |
26 | */ | |
27 | ||
dbb605f5 LC |
28 | #ifdef HAVE_CONFIG_H |
29 | # include <config.h> | |
30 | #endif | |
31 | ||
80662eda MD |
32 | #include <stdio.h> |
33 | ||
34 | #include "libguile/_scm.h" | |
35 | #include "libguile/alist.h" | |
4e047c3e | 36 | #include "libguile/async.h" |
539d5410 | 37 | #include "libguile/chars.h" |
80662eda MD |
38 | #include "libguile/debug.h" |
39 | #include "libguile/dynl.h" | |
40 | #include "libguile/dynwind.h" | |
41 | #include "libguile/eval.h" | |
9fdf9fd3 | 42 | #include "libguile/gsubr.h" |
80662eda MD |
43 | #include "libguile/hashtab.h" |
44 | #include "libguile/keywords.h" | |
45 | #include "libguile/macros.h" | |
46 | #include "libguile/modules.h" | |
80662eda MD |
47 | #include "libguile/ports.h" |
48 | #include "libguile/procprop.h" | |
efcebb5b | 49 | #include "libguile/programs.h" |
80662eda | 50 | #include "libguile/random.h" |
fdc28395 | 51 | #include "libguile/root.h" |
80662eda MD |
52 | #include "libguile/smob.h" |
53 | #include "libguile/strings.h" | |
54 | #include "libguile/strports.h" | |
55 | #include "libguile/vectors.h" | |
efcebb5b | 56 | #include "libguile/vm.h" |
80662eda | 57 | |
ca83b028 | 58 | #include "libguile/validate.h" |
80662eda MD |
59 | #include "libguile/goops.h" |
60 | ||
efcebb5b AW |
61 | /* Port classes */ |
62 | #define SCM_IN_PCLASS_INDEX 0 | |
63 | #define SCM_OUT_PCLASS_INDEX SCM_I_MAX_PORT_TYPE_COUNT | |
64 | #define SCM_INOUT_PCLASS_INDEX (2 * SCM_I_MAX_PORT_TYPE_COUNT) | |
65 | ||
51fd1cd6 AW |
66 | /* Objects have identity, so references to classes and instances are by |
67 | value, not by reference. Redefinition of a class or modification of | |
68 | an instance causes in-place update; you can think of GOOPS as | |
69 | building in its own indirection, and for that reason referring to | |
70 | GOOPS values by variable reference is unnecessary. | |
bef95911 | 71 | |
51fd1cd6 AW |
72 | References to ordinary procedures is by reference (by variable), |
73 | though, as in the rest of Guile. */ | |
74 | ||
75 | static SCM var_make_standard_class = SCM_BOOL_F; | |
bef95911 AW |
76 | static SCM var_slot_unbound = SCM_BOOL_F; |
77 | static SCM var_slot_missing = SCM_BOOL_F; | |
bef95911 | 78 | static SCM var_no_applicable_method = SCM_BOOL_F; |
bef95911 AW |
79 | static SCM var_change_class = SCM_BOOL_F; |
80 | ||
81 | SCM_SYMBOL (sym_slot_unbound, "slot-unbound"); | |
82 | SCM_SYMBOL (sym_slot_missing, "slot-missing"); | |
bef95911 AW |
83 | SCM_SYMBOL (sym_no_applicable_method, "no-applicable-method"); |
84 | SCM_SYMBOL (sym_memoize_method_x, "memoize-method!"); | |
85 | SCM_SYMBOL (sym_change_class, "change-class"); | |
86 | ||
87 | SCM_VARIABLE (scm_var_make_extended_generic, "make-extended-generic"); | |
88 | ||
89 | ||
80662eda MD |
90 | /* Class redefinition protocol: |
91 | ||
92 | A class is represented by a heap header h1 which points to a | |
93 | malloc:ed memory block m1. | |
94 | ||
95 | When a new version of a class is created, a new header h2 and | |
96 | memory block m2 are allocated. The headers h1 and h2 then switch | |
97 | pointers so that h1 refers to m2 and h2 to m1. In this way, names | |
98 | bound to h1 will point to the new class at the same time as h2 will | |
7346de61 | 99 | be a handle which the GC will use to free m1. |
80662eda MD |
100 | |
101 | The `redefined' slot of m1 will be set to point to h1. An old | |
7346de61 | 102 | instance will have its class pointer (the CAR of the heap header) |
80662eda MD |
103 | pointing to m1. The non-immediate `redefined'-slot in m1 indicates |
104 | the class modification and the new class pointer can be found via | |
105 | h1. | |
106 | */ | |
107 | ||
0fd7dcd3 MD |
108 | #define TEST_CHANGE_CLASS(obj, class) \ |
109 | { \ | |
110 | class = SCM_CLASS_OF (obj); \ | |
7888309b | 111 | if (scm_is_true (SCM_OBJ_CLASS_REDEF (obj))) \ |
0fd7dcd3 MD |
112 | { \ |
113 | scm_change_object_class (obj, class, SCM_OBJ_CLASS_REDEF (obj));\ | |
114 | class = SCM_CLASS_OF (obj); \ | |
115 | } \ | |
80662eda MD |
116 | } |
117 | ||
80662eda | 118 | #define SCM_GOOPS_UNBOUND SCM_UNBOUND |
d223c3fc | 119 | #define SCM_GOOPS_UNBOUNDP(x) (scm_is_eq (x, SCM_GOOPS_UNBOUND)) |
80662eda MD |
120 | |
121 | static int goops_loaded_p = 0; | |
92c2555f | 122 | static scm_t_rstate *goops_rstate; |
80662eda | 123 | |
539d5410 MV |
124 | /* These variables are filled in by the object system when loaded. */ |
125 | SCM scm_class_boolean, scm_class_char, scm_class_pair; | |
126 | SCM scm_class_procedure, scm_class_string, scm_class_symbol; | |
ea68d342 | 127 | SCM scm_class_primitive_generic; |
9ea31741 | 128 | SCM scm_class_vector, scm_class_null; |
539d5410 MV |
129 | SCM scm_class_integer, scm_class_real, scm_class_complex, scm_class_fraction; |
130 | SCM scm_class_unknown; | |
80662eda | 131 | SCM scm_class_top, scm_class_object, scm_class_class; |
74b6d6e4 | 132 | SCM scm_class_applicable; |
51f66c91 | 133 | SCM scm_class_applicable_struct, scm_class_applicable_struct_with_setter; |
bbf8d523 | 134 | SCM scm_class_generic, scm_class_generic_with_setter; |
f8af5c6d | 135 | SCM scm_class_accessor; |
bbf8d523 | 136 | SCM scm_class_extended_generic, scm_class_extended_generic_with_setter; |
74b6d6e4 | 137 | SCM scm_class_extended_accessor; |
bbf8d523 | 138 | SCM scm_class_method; |
51f66c91 | 139 | SCM scm_class_accessor_method; |
80662eda | 140 | SCM scm_class_procedure_class; |
51f66c91 | 141 | SCM scm_class_applicable_struct_class; |
80662eda MD |
142 | SCM scm_class_number, scm_class_list; |
143 | SCM scm_class_keyword; | |
144 | SCM scm_class_port, scm_class_input_output_port; | |
145 | SCM scm_class_input_port, scm_class_output_port; | |
80662eda MD |
146 | SCM scm_class_foreign_slot; |
147 | SCM scm_class_self, scm_class_protected; | |
b6cf4d02 AW |
148 | SCM scm_class_hidden, scm_class_opaque, scm_class_read_only; |
149 | SCM scm_class_protected_hidden, scm_class_protected_opaque, scm_class_protected_read_only; | |
80662eda MD |
150 | SCM scm_class_scm; |
151 | SCM scm_class_int, scm_class_float, scm_class_double; | |
152 | ||
e2c2a699 | 153 | static SCM class_foreign; |
9ea31741 AW |
154 | static SCM class_hashtable; |
155 | static SCM class_fluid; | |
156 | static SCM class_dynamic_state; | |
6f3b0cc2 | 157 | static SCM class_frame; |
6f3b0cc2 | 158 | static SCM class_vm_cont; |
f826a886 AW |
159 | static SCM class_bytevector; |
160 | static SCM class_uvec; | |
b2637c98 | 161 | static SCM class_array; |
ff1feca9 | 162 | static SCM class_bitvector; |
9ea31741 | 163 | |
f3c6a02c AW |
164 | static SCM vtable_class_map = SCM_BOOL_F; |
165 | ||
63385df2 LC |
166 | /* Port classes. Allocate 3 times the maximum number of port types so that |
167 | input ports, output ports, and in/out ports can be stored at different | |
168 | offsets. See `SCM_IN_PCLASS_INDEX' et al. */ | |
169 | SCM scm_port_class[3 * SCM_I_MAX_PORT_TYPE_COUNT]; | |
170 | ||
171 | /* SMOB classes. */ | |
47455469 | 172 | SCM scm_smob_class[SCM_I_MAX_SMOB_TYPE_COUNT]; |
539d5410 MV |
173 | |
174 | SCM scm_no_applicable_method; | |
175 | ||
80662eda MD |
176 | static SCM scm_make_unbound (void); |
177 | static SCM scm_unbound_p (SCM obj); | |
398d8ee1 KN |
178 | static SCM scm_assert_bound (SCM value, SCM obj); |
179 | static SCM scm_at_assert_bound_ref (SCM obj, SCM index); | |
51fd1cd6 AW |
180 | static SCM scm_sys_bless_applicable_struct_vtable_x (SCM vtable); |
181 | static SCM scm_sys_bless_pure_generic_vtable_x (SCM vtable); | |
182 | static SCM scm_sys_make_root_class (SCM name, SCM dslots, | |
183 | SCM getters_n_setters); | |
184 | static SCM scm_sys_init_layout_x (SCM class, SCM layout); | |
82ab5090 | 185 | static SCM scm_sys_goops_early_init (void); |
398d8ee1 | 186 | static SCM scm_sys_goops_loaded (void); |
9db8cf16 MG |
187 | static SCM scm_make_extended_class_from_symbol (SCM type_name_sym, |
188 | int applicablep); | |
80662eda | 189 | |
f3c6a02c AW |
190 | |
191 | SCM | |
192 | scm_i_define_class_for_vtable (SCM vtable) | |
193 | { | |
194 | SCM class; | |
195 | ||
203a92b6 | 196 | scm_i_pthread_mutex_lock (&scm_i_misc_mutex); |
f3c6a02c | 197 | if (scm_is_false (vtable_class_map)) |
203a92b6 AW |
198 | vtable_class_map = scm_c_make_weak_table (0, SCM_WEAK_TABLE_KIND_KEY); |
199 | scm_i_pthread_mutex_unlock (&scm_i_misc_mutex); | |
f3c6a02c AW |
200 | |
201 | if (scm_is_false (scm_struct_vtable_p (vtable))) | |
202 | abort (); | |
203 | ||
203a92b6 | 204 | class = scm_weak_table_refq (vtable_class_map, vtable, SCM_BOOL_F); |
ea742d29 | 205 | |
f3c6a02c AW |
206 | if (scm_is_false (class)) |
207 | { | |
208 | if (SCM_UNPACK (scm_class_class)) | |
209 | { | |
210 | SCM name = SCM_VTABLE_NAME (vtable); | |
211 | if (!scm_is_symbol (name)) | |
212 | name = scm_string_to_symbol (scm_nullstr); | |
213 | ||
214 | class = scm_make_extended_class_from_symbol | |
215 | (name, SCM_VTABLE_FLAG_IS_SET (vtable, SCM_VTABLE_FLAG_APPLICABLE)); | |
216 | } | |
217 | else | |
218 | /* `create_struct_classes' will fill this in later. */ | |
219 | class = SCM_BOOL_F; | |
ea742d29 AW |
220 | |
221 | /* Don't worry about races. This only happens when creating a | |
222 | vtable, which happens by definition in one thread. */ | |
203a92b6 | 223 | scm_weak_table_putq_x (vtable_class_map, vtable, class); |
f3c6a02c AW |
224 | } |
225 | ||
226 | return class; | |
227 | } | |
228 | ||
539d5410 MV |
229 | /* This function is used for efficient type dispatch. */ |
230 | SCM_DEFINE (scm_class_of, "class-of", 1, 0, 0, | |
231 | (SCM x), | |
232 | "Return the class of @var{x}.") | |
233 | #define FUNC_NAME s_scm_class_of | |
234 | { | |
235 | switch (SCM_ITAG3 (x)) | |
236 | { | |
237 | case scm_tc3_int_1: | |
238 | case scm_tc3_int_2: | |
239 | return scm_class_integer; | |
240 | ||
241 | case scm_tc3_imm24: | |
242 | if (SCM_CHARP (x)) | |
243 | return scm_class_char; | |
244 | else if (scm_is_bool (x)) | |
245 | return scm_class_boolean; | |
246 | else if (scm_is_null (x)) | |
247 | return scm_class_null; | |
248 | else | |
249 | return scm_class_unknown; | |
250 | ||
251 | case scm_tc3_cons: | |
252 | switch (SCM_TYP7 (x)) | |
253 | { | |
254 | case scm_tcs_cons_nimcar: | |
255 | return scm_class_pair; | |
539d5410 MV |
256 | case scm_tc7_symbol: |
257 | return scm_class_symbol; | |
258 | case scm_tc7_vector: | |
259 | case scm_tc7_wvect: | |
260 | return scm_class_vector; | |
5b46a8c2 | 261 | case scm_tc7_pointer: |
e2c2a699 | 262 | return class_foreign; |
c99de5aa | 263 | case scm_tc7_hashtable: |
9ea31741 AW |
264 | return class_hashtable; |
265 | case scm_tc7_fluid: | |
266 | return class_fluid; | |
267 | case scm_tc7_dynamic_state: | |
268 | return class_dynamic_state; | |
6f3b0cc2 AW |
269 | case scm_tc7_frame: |
270 | return class_frame; | |
e2fafeb9 AW |
271 | case scm_tc7_keyword: |
272 | return scm_class_keyword; | |
6f3b0cc2 AW |
273 | case scm_tc7_vm_cont: |
274 | return class_vm_cont; | |
f826a886 AW |
275 | case scm_tc7_bytevector: |
276 | if (SCM_BYTEVECTOR_ELEMENT_TYPE (x) == SCM_ARRAY_ELEMENT_TYPE_VU8) | |
277 | return class_bytevector; | |
278 | else | |
279 | return class_uvec; | |
b2637c98 AW |
280 | case scm_tc7_array: |
281 | return class_array; | |
ff1feca9 AW |
282 | case scm_tc7_bitvector: |
283 | return class_bitvector; | |
539d5410 MV |
284 | case scm_tc7_string: |
285 | return scm_class_string; | |
286 | case scm_tc7_number: | |
287 | switch SCM_TYP16 (x) { | |
288 | case scm_tc16_big: | |
289 | return scm_class_integer; | |
290 | case scm_tc16_real: | |
291 | return scm_class_real; | |
292 | case scm_tc16_complex: | |
293 | return scm_class_complex; | |
294 | case scm_tc16_fraction: | |
295 | return scm_class_fraction; | |
296 | } | |
e0755cd1 | 297 | case scm_tc7_program: |
b2b33168 AW |
298 | if (SCM_PROGRAM_IS_PRIMITIVE_GENERIC (x) |
299 | && SCM_UNPACK (*SCM_SUBR_GENERIC (x))) | |
fd12a19a AW |
300 | return scm_class_primitive_generic; |
301 | else | |
302 | return scm_class_procedure; | |
539d5410 MV |
303 | |
304 | case scm_tc7_smob: | |
305 | { | |
306 | scm_t_bits type = SCM_TYP16 (x); | |
307 | if (type != scm_tc16_port_with_ps) | |
308 | return scm_smob_class[SCM_TC2SMOBNUM (type)]; | |
309 | x = SCM_PORT_WITH_PS_PORT (x); | |
310 | /* fall through to ports */ | |
311 | } | |
312 | case scm_tc7_port: | |
313 | return scm_port_class[(SCM_WRTNG & SCM_CELL_WORD_0 (x) | |
314 | ? (SCM_RDNG & SCM_CELL_WORD_0 (x) | |
315 | ? SCM_INOUT_PCLASS_INDEX | SCM_PTOBNUM (x) | |
316 | : SCM_OUT_PCLASS_INDEX | SCM_PTOBNUM (x)) | |
317 | : SCM_IN_PCLASS_INDEX | SCM_PTOBNUM (x))]; | |
318 | case scm_tcs_struct: | |
319 | if (SCM_OBJ_CLASS_FLAGS (x) & SCM_CLASSF_GOOPS_VALID) | |
320 | return SCM_CLASS_OF (x); | |
321 | else if (SCM_OBJ_CLASS_FLAGS (x) & SCM_CLASSF_GOOPS) | |
322 | { | |
323 | /* Goops object */ | |
324 | if (! scm_is_false (SCM_OBJ_CLASS_REDEF (x))) | |
325 | scm_change_object_class (x, | |
326 | SCM_CLASS_OF (x), /* old */ | |
327 | SCM_OBJ_CLASS_REDEF (x)); /* new */ | |
328 | return SCM_CLASS_OF (x); | |
329 | } | |
330 | else | |
f3c6a02c | 331 | return scm_i_define_class_for_vtable (SCM_CLASS_OF (x)); |
539d5410 MV |
332 | default: |
333 | if (scm_is_pair (x)) | |
334 | return scm_class_pair; | |
335 | else | |
336 | return scm_class_unknown; | |
337 | } | |
338 | ||
339 | case scm_tc3_struct: | |
340 | case scm_tc3_tc7_1: | |
341 | case scm_tc3_tc7_2: | |
314b8716 | 342 | /* case scm_tc3_unused: */ |
539d5410 MV |
343 | /* Never reached */ |
344 | break; | |
345 | } | |
346 | return scm_class_unknown; | |
347 | } | |
348 | #undef FUNC_NAME | |
349 | ||
80662eda MD |
350 | /****************************************************************************** |
351 | * | |
352 | * initialize-object | |
353 | * | |
354 | ******************************************************************************/ | |
355 | ||
356 | /*fixme* Manufacture keywords in advance */ | |
357 | SCM | |
c014a02e | 358 | scm_i_get_keyword (SCM key, SCM l, long len, SCM default_value, const char *subr) |
80662eda | 359 | { |
c014a02e | 360 | long i; |
23437298 DH |
361 | |
362 | for (i = 0; i != len; i += 2) | |
80662eda | 363 | { |
23437298 DH |
364 | SCM obj = SCM_CAR (l); |
365 | ||
c598539a | 366 | if (!scm_is_keyword (obj)) |
1afff620 | 367 | scm_misc_error (subr, "bad keyword: ~S", scm_list_1 (obj)); |
bc36d050 | 368 | else if (scm_is_eq (obj, key)) |
80662eda | 369 | return SCM_CADR (l); |
23437298 DH |
370 | else |
371 | l = SCM_CDDR (l); | |
80662eda | 372 | } |
23437298 | 373 | |
80662eda MD |
374 | return default_value; |
375 | } | |
376 | ||
80662eda | 377 | |
23437298 DH |
378 | SCM_DEFINE (scm_get_keyword, "get-keyword", 3, 0, 0, |
379 | (SCM key, SCM l, SCM default_value), | |
5352393c MG |
380 | "Determine an associated value for the keyword @var{key} from\n" |
381 | "the list @var{l}. The list @var{l} has to consist of an even\n" | |
382 | "number of elements, where, starting with the first, every\n" | |
383 | "second element is a keyword, followed by its associated value.\n" | |
384 | "If @var{l} does not hold a value for @var{key}, the value\n" | |
385 | "@var{default_value} is returned.") | |
23437298 | 386 | #define FUNC_NAME s_scm_get_keyword |
80662eda | 387 | { |
c014a02e | 388 | long len; |
23437298 | 389 | |
c598539a | 390 | SCM_ASSERT (scm_is_keyword (key), key, SCM_ARG1, FUNC_NAME); |
80662eda | 391 | len = scm_ilength (l); |
b6311c08 | 392 | if (len < 0 || len % 2 == 1) |
1afff620 | 393 | scm_misc_error (FUNC_NAME, "Bad keyword-value list: ~S", scm_list_1 (l)); |
23437298 DH |
394 | |
395 | return scm_i_get_keyword (key, l, len, default_value, FUNC_NAME); | |
80662eda | 396 | } |
23437298 DH |
397 | #undef FUNC_NAME |
398 | ||
80662eda | 399 | |
80662eda MD |
400 | SCM_KEYWORD (k_init_keyword, "init-keyword"); |
401 | ||
402 | static SCM get_slot_value (SCM class, SCM obj, SCM slotdef); | |
403 | static SCM set_slot_value (SCM class, SCM obj, SCM slotdef, SCM value); | |
404 | ||
398d8ee1 KN |
405 | SCM_DEFINE (scm_sys_initialize_object, "%initialize-object", 2, 0, 0, |
406 | (SCM obj, SCM initargs), | |
6bcefd15 MG |
407 | "Initialize the object @var{obj} with the given arguments\n" |
408 | "@var{initargs}.") | |
398d8ee1 | 409 | #define FUNC_NAME s_scm_sys_initialize_object |
80662eda MD |
410 | { |
411 | SCM tmp, get_n_set, slots; | |
412 | SCM class = SCM_CLASS_OF (obj); | |
c014a02e | 413 | long n_initargs; |
80662eda | 414 | |
398d8ee1 | 415 | SCM_VALIDATE_INSTANCE (1, obj); |
80662eda | 416 | n_initargs = scm_ilength (initargs); |
398d8ee1 | 417 | SCM_ASSERT ((n_initargs & 1) == 0, initargs, SCM_ARG2, FUNC_NAME); |
6d77c894 | 418 | |
80662eda MD |
419 | get_n_set = SCM_SLOT (class, scm_si_getters_n_setters); |
420 | slots = SCM_SLOT (class, scm_si_slots); | |
6d77c894 | 421 | |
80662eda MD |
422 | /* See for each slot how it must be initialized */ |
423 | for (; | |
d2e53ed6 | 424 | !scm_is_null (slots); |
80662eda MD |
425 | get_n_set = SCM_CDR (get_n_set), slots = SCM_CDR (slots)) |
426 | { | |
427 | SCM slot_name = SCM_CAR (slots); | |
48ad85fb | 428 | SCM slot_value = SCM_GOOPS_UNBOUND; |
6d77c894 | 429 | |
d2e53ed6 | 430 | if (!scm_is_null (SCM_CDR (slot_name))) |
80662eda MD |
431 | { |
432 | /* This slot admits (perhaps) to be initialized at creation time */ | |
c014a02e | 433 | long n = scm_ilength (SCM_CDR (slot_name)); |
80662eda | 434 | if (n & 1) /* odd or -1 */ |
398d8ee1 | 435 | SCM_MISC_ERROR ("class contains bogus slot definition: ~S", |
1afff620 | 436 | scm_list_1 (slot_name)); |
80662eda MD |
437 | tmp = scm_i_get_keyword (k_init_keyword, |
438 | SCM_CDR (slot_name), | |
439 | n, | |
b2b33168 | 440 | SCM_PACK (0), |
398d8ee1 | 441 | FUNC_NAME); |
80662eda | 442 | slot_name = SCM_CAR (slot_name); |
b2b33168 | 443 | if (SCM_UNPACK (tmp)) |
80662eda MD |
444 | { |
445 | /* an initarg was provided for this slot */ | |
c598539a | 446 | if (!scm_is_keyword (tmp)) |
398d8ee1 | 447 | SCM_MISC_ERROR ("initarg must be a keyword. It was ~S", |
1afff620 | 448 | scm_list_1 (tmp)); |
80662eda MD |
449 | slot_value = scm_i_get_keyword (tmp, |
450 | initargs, | |
451 | n_initargs, | |
48ad85fb | 452 | SCM_GOOPS_UNBOUND, |
398d8ee1 | 453 | FUNC_NAME); |
80662eda MD |
454 | } |
455 | } | |
456 | ||
48ad85fb | 457 | if (!SCM_GOOPS_UNBOUNDP (slot_value)) |
80662eda MD |
458 | /* set slot to provided value */ |
459 | set_slot_value (class, obj, SCM_CAR (get_n_set), slot_value); | |
460 | else | |
461 | { | |
462 | /* set slot to its :init-form if it exists */ | |
463 | tmp = SCM_CADAR (get_n_set); | |
7888309b | 464 | if (scm_is_true (tmp)) |
48ad85fb AW |
465 | set_slot_value (class, |
466 | obj, | |
467 | SCM_CAR (get_n_set), | |
468 | scm_call_0 (tmp)); | |
80662eda MD |
469 | } |
470 | } | |
6d77c894 | 471 | |
80662eda MD |
472 | return obj; |
473 | } | |
398d8ee1 | 474 | #undef FUNC_NAME |
80662eda | 475 | |
51fd1cd6 AW |
476 | SCM_DEFINE (scm_sys_init_layout_x, "%init-layout!", 2, 0, 0, |
477 | (SCM class, SCM layout), | |
398d8ee1 | 478 | "") |
51fd1cd6 | 479 | #define FUNC_NAME s_scm_sys_init_layout_x |
80662eda | 480 | { |
398d8ee1 | 481 | SCM_VALIDATE_INSTANCE (1, class); |
51fd1cd6 AW |
482 | SCM_ASSERT (!scm_is_symbol (SCM_VTABLE_LAYOUT (class)), class, 1, FUNC_NAME); |
483 | SCM_VALIDATE_STRING (2, layout); | |
484 | ||
485 | SCM_SET_VTABLE_LAYOUT (class, scm_make_struct_layout (layout)); | |
80662eda MD |
486 | return SCM_UNSPECIFIED; |
487 | } | |
398d8ee1 | 488 | #undef FUNC_NAME |
80662eda MD |
489 | |
490 | static void prep_hashsets (SCM); | |
491 | ||
398d8ee1 KN |
492 | SCM_DEFINE (scm_sys_inherit_magic_x, "%inherit-magic!", 2, 0, 0, |
493 | (SCM class, SCM dsupers), | |
494 | "") | |
495 | #define FUNC_NAME s_scm_sys_inherit_magic_x | |
80662eda | 496 | { |
398d8ee1 | 497 | SCM_VALIDATE_INSTANCE (1, class); |
51f66c91 AW |
498 | scm_i_struct_inherit_vtable_magic (SCM_CLASS_OF (class), class); |
499 | SCM_SET_CLASS_FLAGS (class, SCM_CLASSF_GOOPS_OR_VALID); | |
80662eda MD |
500 | |
501 | prep_hashsets (class); | |
6d77c894 | 502 | |
80662eda MD |
503 | return SCM_UNSPECIFIED; |
504 | } | |
398d8ee1 | 505 | #undef FUNC_NAME |
80662eda | 506 | |
63c1872f | 507 | static void |
80662eda MD |
508 | prep_hashsets (SCM class) |
509 | { | |
dcb410ec | 510 | unsigned int i; |
80662eda | 511 | |
e161c9f8 | 512 | for (i = 0; i < 8; ++i) |
dcb410ec | 513 | SCM_SET_HASHSET (class, i, scm_c_uniform32 (goops_rstate)); |
80662eda MD |
514 | } |
515 | ||
516 | /******************************************************************************/ | |
517 | ||
80662eda | 518 | SCM |
28b818d3 | 519 | scm_make_standard_class (SCM meta, SCM name, SCM dsupers, SCM dslots) |
80662eda | 520 | { |
51fd1cd6 | 521 | return scm_call_4 (scm_variable_ref (var_make_standard_class), |
28b818d3 | 522 | meta, name, dsupers, dslots); |
80662eda MD |
523 | } |
524 | ||
525 | /******************************************************************************/ | |
526 | ||
51fd1cd6 AW |
527 | SCM_DEFINE (scm_sys_make_root_class, "%make-root-class", 3, 0, 0, |
528 | (SCM name, SCM dslots, SCM getters_n_setters), | |
529 | "") | |
530 | #define FUNC_NAME s_scm_sys_make_root_class | |
80662eda | 531 | { |
51fd1cd6 | 532 | SCM cs, z; |
6d77c894 | 533 | |
51fd1cd6 AW |
534 | cs = scm_from_locale_string (SCM_CLASS_CLASS_LAYOUT); |
535 | z = scm_i_make_vtable_vtable (cs); | |
536 | SCM_SET_CLASS_FLAGS (z, (SCM_CLASSF_GOOPS_OR_VALID | |
537 | | SCM_CLASSF_METACLASS)); | |
80662eda | 538 | |
51fd1cd6 AW |
539 | SCM_SET_SLOT (z, scm_vtable_index_name, name); |
540 | SCM_SET_SLOT (z, scm_si_direct_supers, SCM_EOL); /* will be changed */ | |
541 | SCM_SET_SLOT (z, scm_si_direct_slots, dslots); /* will be changed */ | |
542 | SCM_SET_SLOT (z, scm_si_direct_subclasses, SCM_EOL); | |
543 | SCM_SET_SLOT (z, scm_si_direct_methods, SCM_EOL); | |
544 | SCM_SET_SLOT (z, scm_si_cpl, SCM_EOL); /* will be changed */ | |
545 | SCM_SET_SLOT (z, scm_si_slots, dslots); /* will be changed */ | |
546 | SCM_SET_SLOT (z, scm_si_nfields, scm_from_int (SCM_N_CLASS_SLOTS)); | |
547 | SCM_SET_SLOT (z, scm_si_getters_n_setters, getters_n_setters); /* will be changed */ | |
548 | SCM_SET_SLOT (z, scm_si_redefined, SCM_BOOL_F); | |
80662eda | 549 | |
51fd1cd6 | 550 | prep_hashsets (z); |
80662eda | 551 | |
51fd1cd6 | 552 | return z; |
80662eda | 553 | } |
51fd1cd6 | 554 | #undef FUNC_NAME |
80662eda MD |
555 | |
556 | /******************************************************************************/ | |
557 | ||
398d8ee1 KN |
558 | SCM_DEFINE (scm_instance_p, "instance?", 1, 0, 0, |
559 | (SCM obj), | |
6bcefd15 | 560 | "Return @code{#t} if @var{obj} is an instance.") |
398d8ee1 | 561 | #define FUNC_NAME s_scm_instance_p |
80662eda | 562 | { |
7888309b | 563 | return scm_from_bool (SCM_INSTANCEP (obj)); |
80662eda | 564 | } |
398d8ee1 | 565 | #undef FUNC_NAME |
80662eda | 566 | |
80662eda MD |
567 | |
568 | /****************************************************************************** | |
6d77c894 | 569 | * |
80662eda MD |
570 | * Meta object accessors |
571 | * | |
572 | ******************************************************************************/ | |
51fd1cd6 AW |
573 | |
574 | SCM_SYMBOL (sym_procedure, "procedure"); | |
575 | SCM_SYMBOL (sym_direct_supers, "direct-supers"); | |
576 | SCM_SYMBOL (sym_direct_slots, "direct-slots"); | |
577 | SCM_SYMBOL (sym_direct_subclasses, "direct-subclasses"); | |
578 | SCM_SYMBOL (sym_direct_methods, "direct-methods"); | |
579 | SCM_SYMBOL (sym_cpl, "cpl"); | |
580 | SCM_SYMBOL (sym_slots, "slots"); | |
581 | ||
398d8ee1 KN |
582 | SCM_DEFINE (scm_class_name, "class-name", 1, 0, 0, |
583 | (SCM obj), | |
6bcefd15 | 584 | "Return the class name of @var{obj}.") |
398d8ee1 | 585 | #define FUNC_NAME s_scm_class_name |
80662eda | 586 | { |
398d8ee1 | 587 | SCM_VALIDATE_CLASS (1, obj); |
51fd1cd6 | 588 | return scm_slot_ref (obj, scm_sym_name); |
80662eda | 589 | } |
398d8ee1 | 590 | #undef FUNC_NAME |
80662eda | 591 | |
398d8ee1 KN |
592 | SCM_DEFINE (scm_class_direct_supers, "class-direct-supers", 1, 0, 0, |
593 | (SCM obj), | |
6bcefd15 | 594 | "Return the direct superclasses of the class @var{obj}.") |
398d8ee1 | 595 | #define FUNC_NAME s_scm_class_direct_supers |
80662eda | 596 | { |
398d8ee1 | 597 | SCM_VALIDATE_CLASS (1, obj); |
6b80d352 | 598 | return scm_slot_ref (obj, sym_direct_supers); |
80662eda | 599 | } |
398d8ee1 | 600 | #undef FUNC_NAME |
80662eda | 601 | |
398d8ee1 KN |
602 | SCM_DEFINE (scm_class_direct_slots, "class-direct-slots", 1, 0, 0, |
603 | (SCM obj), | |
6bcefd15 | 604 | "Return the direct slots of the class @var{obj}.") |
398d8ee1 | 605 | #define FUNC_NAME s_scm_class_direct_slots |
80662eda | 606 | { |
398d8ee1 | 607 | SCM_VALIDATE_CLASS (1, obj); |
6b80d352 | 608 | return scm_slot_ref (obj, sym_direct_slots); |
80662eda | 609 | } |
398d8ee1 | 610 | #undef FUNC_NAME |
80662eda | 611 | |
398d8ee1 KN |
612 | SCM_DEFINE (scm_class_direct_subclasses, "class-direct-subclasses", 1, 0, 0, |
613 | (SCM obj), | |
6bcefd15 | 614 | "Return the direct subclasses of the class @var{obj}.") |
398d8ee1 | 615 | #define FUNC_NAME s_scm_class_direct_subclasses |
80662eda | 616 | { |
398d8ee1 | 617 | SCM_VALIDATE_CLASS (1, obj); |
6b80d352 | 618 | return scm_slot_ref(obj, sym_direct_subclasses); |
80662eda | 619 | } |
398d8ee1 | 620 | #undef FUNC_NAME |
80662eda | 621 | |
398d8ee1 KN |
622 | SCM_DEFINE (scm_class_direct_methods, "class-direct-methods", 1, 0, 0, |
623 | (SCM obj), | |
6bcefd15 | 624 | "Return the direct methods of the class @var{obj}") |
398d8ee1 | 625 | #define FUNC_NAME s_scm_class_direct_methods |
80662eda | 626 | { |
398d8ee1 | 627 | SCM_VALIDATE_CLASS (1, obj); |
6b80d352 | 628 | return scm_slot_ref (obj, sym_direct_methods); |
80662eda | 629 | } |
398d8ee1 | 630 | #undef FUNC_NAME |
80662eda | 631 | |
398d8ee1 KN |
632 | SCM_DEFINE (scm_class_precedence_list, "class-precedence-list", 1, 0, 0, |
633 | (SCM obj), | |
6bcefd15 | 634 | "Return the class precedence list of the class @var{obj}.") |
398d8ee1 | 635 | #define FUNC_NAME s_scm_class_precedence_list |
80662eda | 636 | { |
398d8ee1 | 637 | SCM_VALIDATE_CLASS (1, obj); |
6b80d352 | 638 | return scm_slot_ref (obj, sym_cpl); |
80662eda | 639 | } |
398d8ee1 | 640 | #undef FUNC_NAME |
80662eda | 641 | |
398d8ee1 KN |
642 | SCM_DEFINE (scm_class_slots, "class-slots", 1, 0, 0, |
643 | (SCM obj), | |
6bcefd15 | 644 | "Return the slot list of the class @var{obj}.") |
398d8ee1 | 645 | #define FUNC_NAME s_scm_class_slots |
80662eda | 646 | { |
398d8ee1 | 647 | SCM_VALIDATE_CLASS (1, obj); |
6b80d352 | 648 | return scm_slot_ref (obj, sym_slots); |
80662eda | 649 | } |
398d8ee1 | 650 | #undef FUNC_NAME |
80662eda | 651 | |
398d8ee1 KN |
652 | SCM_DEFINE (scm_generic_function_name, "generic-function-name", 1, 0, 0, |
653 | (SCM obj), | |
6bcefd15 | 654 | "Return the name of the generic function @var{obj}.") |
398d8ee1 | 655 | #define FUNC_NAME s_scm_generic_function_name |
80662eda | 656 | { |
398d8ee1 | 657 | SCM_VALIDATE_GENERIC (1, obj); |
80662eda MD |
658 | return scm_procedure_property (obj, scm_sym_name); |
659 | } | |
398d8ee1 | 660 | #undef FUNC_NAME |
80662eda | 661 | |
bbf8d523 MD |
662 | SCM_SYMBOL (sym_methods, "methods"); |
663 | SCM_SYMBOL (sym_extended_by, "extended-by"); | |
664 | SCM_SYMBOL (sym_extends, "extends"); | |
665 | ||
666 | static | |
667 | SCM fold_downward_gf_methods (SCM method_lists, SCM gf) | |
668 | { | |
669 | SCM gfs = scm_slot_ref (gf, sym_extended_by); | |
670 | method_lists = scm_cons (scm_slot_ref (gf, sym_methods), method_lists); | |
d2e53ed6 | 671 | while (!scm_is_null (gfs)) |
bbf8d523 MD |
672 | { |
673 | method_lists = fold_downward_gf_methods (method_lists, SCM_CAR (gfs)); | |
674 | gfs = SCM_CDR (gfs); | |
675 | } | |
676 | return method_lists; | |
677 | } | |
678 | ||
679 | static | |
680 | SCM fold_upward_gf_methods (SCM method_lists, SCM gf) | |
681 | { | |
682 | if (SCM_IS_A_P (gf, scm_class_extended_generic)) | |
683 | { | |
684 | SCM gfs = scm_slot_ref (gf, sym_extends); | |
d2e53ed6 | 685 | while (!scm_is_null (gfs)) |
bbf8d523 MD |
686 | { |
687 | SCM methods = scm_slot_ref (SCM_CAR (gfs), sym_methods); | |
688 | method_lists = fold_upward_gf_methods (scm_cons (methods, | |
689 | method_lists), | |
690 | SCM_CAR (gfs)); | |
691 | gfs = SCM_CDR (gfs); | |
692 | } | |
693 | } | |
694 | return method_lists; | |
695 | } | |
696 | ||
398d8ee1 KN |
697 | SCM_DEFINE (scm_generic_function_methods, "generic-function-methods", 1, 0, 0, |
698 | (SCM obj), | |
6bcefd15 | 699 | "Return the methods of the generic function @var{obj}.") |
398d8ee1 | 700 | #define FUNC_NAME s_scm_generic_function_methods |
80662eda | 701 | { |
bbf8d523 | 702 | SCM methods; |
398d8ee1 | 703 | SCM_VALIDATE_GENERIC (1, obj); |
bbf8d523 MD |
704 | methods = fold_upward_gf_methods (SCM_EOL, obj); |
705 | methods = fold_downward_gf_methods (methods, obj); | |
706 | return scm_append (methods); | |
80662eda | 707 | } |
398d8ee1 | 708 | #undef FUNC_NAME |
80662eda | 709 | |
398d8ee1 KN |
710 | SCM_DEFINE (scm_method_generic_function, "method-generic-function", 1, 0, 0, |
711 | (SCM obj), | |
bb2c02f2 | 712 | "Return the generic function for the method @var{obj}.") |
398d8ee1 | 713 | #define FUNC_NAME s_scm_method_generic_function |
80662eda | 714 | { |
398d8ee1 | 715 | SCM_VALIDATE_METHOD (1, obj); |
4a655e50 | 716 | return scm_slot_ref (obj, scm_from_latin1_symbol ("generic-function")); |
80662eda | 717 | } |
398d8ee1 | 718 | #undef FUNC_NAME |
80662eda | 719 | |
398d8ee1 KN |
720 | SCM_DEFINE (scm_method_specializers, "method-specializers", 1, 0, 0, |
721 | (SCM obj), | |
6bcefd15 | 722 | "Return specializers of the method @var{obj}.") |
398d8ee1 | 723 | #define FUNC_NAME s_scm_method_specializers |
80662eda | 724 | { |
398d8ee1 | 725 | SCM_VALIDATE_METHOD (1, obj); |
4a655e50 | 726 | return scm_slot_ref (obj, scm_from_latin1_symbol ("specializers")); |
80662eda | 727 | } |
398d8ee1 | 728 | #undef FUNC_NAME |
80662eda | 729 | |
398d8ee1 KN |
730 | SCM_DEFINE (scm_method_procedure, "method-procedure", 1, 0, 0, |
731 | (SCM obj), | |
6bcefd15 | 732 | "Return the procedure of the method @var{obj}.") |
398d8ee1 | 733 | #define FUNC_NAME s_scm_method_procedure |
80662eda | 734 | { |
398d8ee1 | 735 | SCM_VALIDATE_METHOD (1, obj); |
6b80d352 | 736 | return scm_slot_ref (obj, sym_procedure); |
80662eda | 737 | } |
398d8ee1 | 738 | #undef FUNC_NAME |
80662eda | 739 | |
80662eda MD |
740 | /****************************************************************************** |
741 | * | |
742 | * S l o t a c c e s s | |
743 | * | |
744 | ******************************************************************************/ | |
745 | ||
398d8ee1 KN |
746 | SCM_DEFINE (scm_make_unbound, "make-unbound", 0, 0, 0, |
747 | (), | |
6bcefd15 | 748 | "Return the unbound value.") |
398d8ee1 | 749 | #define FUNC_NAME s_scm_make_unbound |
80662eda MD |
750 | { |
751 | return SCM_GOOPS_UNBOUND; | |
752 | } | |
398d8ee1 | 753 | #undef FUNC_NAME |
80662eda | 754 | |
398d8ee1 KN |
755 | SCM_DEFINE (scm_unbound_p, "unbound?", 1, 0, 0, |
756 | (SCM obj), | |
6bcefd15 | 757 | "Return @code{#t} if @var{obj} is unbound.") |
398d8ee1 | 758 | #define FUNC_NAME s_scm_unbound_p |
80662eda MD |
759 | { |
760 | return SCM_GOOPS_UNBOUNDP (obj) ? SCM_BOOL_T : SCM_BOOL_F; | |
761 | } | |
398d8ee1 | 762 | #undef FUNC_NAME |
80662eda | 763 | |
398d8ee1 KN |
764 | SCM_DEFINE (scm_assert_bound, "assert-bound", 2, 0, 0, |
765 | (SCM value, SCM obj), | |
6bcefd15 MG |
766 | "Return @var{value} if it is bound, and invoke the\n" |
767 | "@var{slot-unbound} method of @var{obj} if it is not.") | |
398d8ee1 | 768 | #define FUNC_NAME s_scm_assert_bound |
80662eda MD |
769 | { |
770 | if (SCM_GOOPS_UNBOUNDP (value)) | |
bef95911 | 771 | return scm_call_1 (SCM_VARIABLE_REF (var_slot_unbound), obj); |
80662eda MD |
772 | return value; |
773 | } | |
398d8ee1 | 774 | #undef FUNC_NAME |
80662eda | 775 | |
398d8ee1 KN |
776 | SCM_DEFINE (scm_at_assert_bound_ref, "@assert-bound-ref", 2, 0, 0, |
777 | (SCM obj, SCM index), | |
6bcefd15 MG |
778 | "Like @code{assert-bound}, but use @var{index} for accessing\n" |
779 | "the value from @var{obj}.") | |
398d8ee1 | 780 | #define FUNC_NAME s_scm_at_assert_bound_ref |
80662eda | 781 | { |
e11e83f3 | 782 | SCM value = SCM_SLOT (obj, scm_to_int (index)); |
80662eda | 783 | if (SCM_GOOPS_UNBOUNDP (value)) |
bef95911 | 784 | return scm_call_1 (SCM_VARIABLE_REF (var_slot_unbound), obj); |
80662eda MD |
785 | return value; |
786 | } | |
398d8ee1 | 787 | #undef FUNC_NAME |
80662eda | 788 | |
80662eda | 789 | |
4d0949ea | 790 | \f |
80662eda MD |
791 | /** Utilities **/ |
792 | ||
793 | /* In the future, this function will return the effective slot | |
794 | * definition associated with SLOT_NAME. Now it just returns some of | |
795 | * the information which will be stored in the effective slot | |
796 | * definition. | |
797 | */ | |
798 | ||
799 | static SCM | |
800 | slot_definition_using_name (SCM class, SCM slot_name) | |
801 | { | |
802 | register SCM slots = SCM_SLOT (class, scm_si_getters_n_setters); | |
d2e53ed6 | 803 | for (; !scm_is_null (slots); slots = SCM_CDR (slots)) |
d223c3fc | 804 | if (scm_is_eq (SCM_CAAR (slots), slot_name)) |
80662eda MD |
805 | return SCM_CAR (slots); |
806 | return SCM_BOOL_F; | |
807 | } | |
808 | ||
809 | static SCM | |
e81d98ec | 810 | get_slot_value (SCM class SCM_UNUSED, SCM obj, SCM slotdef) |
54ee7cdf | 811 | #define FUNC_NAME "%get-slot-value" |
80662eda MD |
812 | { |
813 | SCM access = SCM_CDDR (slotdef); | |
814 | /* Two cases here: | |
815 | * - access is an integer (the offset of this slot in the slots vector) | |
816 | * - otherwise (car access) is the getter function to apply | |
e11e83f3 MV |
817 | * |
818 | * Instances have never more than SCM_MOST_POSITIVE_FIXNUM slots, so | |
819 | * we can just assume fixnums here. | |
23437298 | 820 | */ |
e11e83f3 | 821 | if (SCM_I_INUMP (access)) |
54ee7cdf AW |
822 | /* Don't poke at the slots directly, because scm_struct_ref handles the |
823 | access bits for us. */ | |
824 | return scm_struct_ref (obj, access); | |
80662eda | 825 | else |
9d019f9b | 826 | return scm_call_1 (SCM_CAR (access), obj); |
80662eda | 827 | } |
54ee7cdf | 828 | #undef FUNC_NAME |
80662eda MD |
829 | |
830 | static SCM | |
831 | get_slot_value_using_name (SCM class, SCM obj, SCM slot_name) | |
832 | { | |
833 | SCM slotdef = slot_definition_using_name (class, slot_name); | |
7888309b | 834 | if (scm_is_true (slotdef)) |
80662eda MD |
835 | return get_slot_value (class, obj, slotdef); |
836 | else | |
bef95911 | 837 | return scm_call_3 (SCM_VARIABLE_REF (var_slot_missing), class, obj, slot_name); |
80662eda MD |
838 | } |
839 | ||
840 | static SCM | |
e81d98ec | 841 | set_slot_value (SCM class SCM_UNUSED, SCM obj, SCM slotdef, SCM value) |
54ee7cdf | 842 | #define FUNC_NAME "%set-slot-value" |
80662eda MD |
843 | { |
844 | SCM access = SCM_CDDR (slotdef); | |
845 | /* Two cases here: | |
846 | * - access is an integer (the offset of this slot in the slots vector) | |
847 | * - otherwise (cadr access) is the setter function to apply | |
e11e83f3 MV |
848 | * |
849 | * Instances have never more than SCM_MOST_POSITIVE_FIXNUM slots, so | |
850 | * we can just assume fixnums here. | |
80662eda | 851 | */ |
e11e83f3 | 852 | if (SCM_I_INUMP (access)) |
54ee7cdf AW |
853 | /* obey permissions bits via going through struct-set! */ |
854 | scm_struct_set_x (obj, access, value); | |
80662eda | 855 | else |
9d019f9b AW |
856 | /* ((cadr l) obj value) */ |
857 | scm_call_2 (SCM_CADR (access), obj, value); | |
80662eda MD |
858 | return SCM_UNSPECIFIED; |
859 | } | |
54ee7cdf | 860 | #undef FUNC_NAME |
80662eda MD |
861 | |
862 | static SCM | |
863 | set_slot_value_using_name (SCM class, SCM obj, SCM slot_name, SCM value) | |
864 | { | |
865 | SCM slotdef = slot_definition_using_name (class, slot_name); | |
7888309b | 866 | if (scm_is_true (slotdef)) |
80662eda MD |
867 | return set_slot_value (class, obj, slotdef, value); |
868 | else | |
bef95911 | 869 | return scm_call_4 (SCM_VARIABLE_REF (var_slot_missing), class, obj, slot_name, value); |
80662eda MD |
870 | } |
871 | ||
872 | static SCM | |
e81d98ec | 873 | test_slot_existence (SCM class SCM_UNUSED, SCM obj, SCM slot_name) |
80662eda MD |
874 | { |
875 | register SCM l; | |
876 | ||
d2e53ed6 | 877 | for (l = SCM_ACCESSORS_OF (obj); !scm_is_null (l); l = SCM_CDR (l)) |
bc36d050 | 878 | if (scm_is_eq (SCM_CAAR (l), slot_name)) |
80662eda MD |
879 | return SCM_BOOL_T; |
880 | ||
881 | return SCM_BOOL_F; | |
882 | } | |
883 | ||
80662eda MD |
884 | /* ======================================== */ |
885 | ||
23437298 DH |
886 | SCM_DEFINE (scm_slot_ref_using_class, "slot-ref-using-class", 3, 0, 0, |
887 | (SCM class, SCM obj, SCM slot_name), | |
888 | "") | |
889 | #define FUNC_NAME s_scm_slot_ref_using_class | |
80662eda MD |
890 | { |
891 | SCM res; | |
892 | ||
398d8ee1 KN |
893 | SCM_VALIDATE_CLASS (1, class); |
894 | SCM_VALIDATE_INSTANCE (2, obj); | |
895 | SCM_VALIDATE_SYMBOL (3, slot_name); | |
80662eda MD |
896 | |
897 | res = get_slot_value_using_name (class, obj, slot_name); | |
898 | if (SCM_GOOPS_UNBOUNDP (res)) | |
bef95911 | 899 | return scm_call_3 (SCM_VARIABLE_REF (var_slot_unbound), class, obj, slot_name); |
80662eda MD |
900 | return res; |
901 | } | |
23437298 | 902 | #undef FUNC_NAME |
80662eda | 903 | |
23437298 DH |
904 | |
905 | SCM_DEFINE (scm_slot_set_using_class_x, "slot-set-using-class!", 4, 0, 0, | |
906 | (SCM class, SCM obj, SCM slot_name, SCM value), | |
907 | "") | |
908 | #define FUNC_NAME s_scm_slot_set_using_class_x | |
80662eda | 909 | { |
398d8ee1 KN |
910 | SCM_VALIDATE_CLASS (1, class); |
911 | SCM_VALIDATE_INSTANCE (2, obj); | |
912 | SCM_VALIDATE_SYMBOL (3, slot_name); | |
23437298 | 913 | |
80662eda MD |
914 | return set_slot_value_using_name (class, obj, slot_name, value); |
915 | } | |
23437298 DH |
916 | #undef FUNC_NAME |
917 | ||
80662eda | 918 | |
398d8ee1 KN |
919 | SCM_DEFINE (scm_slot_bound_using_class_p, "slot-bound-using-class?", 3, 0, 0, |
920 | (SCM class, SCM obj, SCM slot_name), | |
921 | "") | |
922 | #define FUNC_NAME s_scm_slot_bound_using_class_p | |
80662eda | 923 | { |
398d8ee1 KN |
924 | SCM_VALIDATE_CLASS (1, class); |
925 | SCM_VALIDATE_INSTANCE (2, obj); | |
926 | SCM_VALIDATE_SYMBOL (3, slot_name); | |
80662eda MD |
927 | |
928 | return (SCM_GOOPS_UNBOUNDP (get_slot_value_using_name (class, obj, slot_name)) | |
929 | ? SCM_BOOL_F | |
930 | : SCM_BOOL_T); | |
931 | } | |
398d8ee1 | 932 | #undef FUNC_NAME |
80662eda | 933 | |
398d8ee1 KN |
934 | SCM_DEFINE (scm_slot_exists_using_class_p, "slot-exists-using-class?", 3, 0, 0, |
935 | (SCM class, SCM obj, SCM slot_name), | |
936 | "") | |
937 | #define FUNC_NAME s_scm_slot_exists_using_class_p | |
938 | { | |
939 | SCM_VALIDATE_CLASS (1, class); | |
940 | SCM_VALIDATE_INSTANCE (2, obj); | |
941 | SCM_VALIDATE_SYMBOL (3, slot_name); | |
80662eda MD |
942 | return test_slot_existence (class, obj, slot_name); |
943 | } | |
398d8ee1 | 944 | #undef FUNC_NAME |
80662eda MD |
945 | |
946 | ||
947 | /* ======================================== */ | |
948 | ||
398d8ee1 KN |
949 | SCM_DEFINE (scm_slot_ref, "slot-ref", 2, 0, 0, |
950 | (SCM obj, SCM slot_name), | |
6bcefd15 MG |
951 | "Return the value from @var{obj}'s slot with the name\n" |
952 | "@var{slot_name}.") | |
398d8ee1 | 953 | #define FUNC_NAME s_scm_slot_ref |
80662eda MD |
954 | { |
955 | SCM res, class; | |
956 | ||
398d8ee1 | 957 | SCM_VALIDATE_INSTANCE (1, obj); |
80662eda MD |
958 | TEST_CHANGE_CLASS (obj, class); |
959 | ||
960 | res = get_slot_value_using_name (class, obj, slot_name); | |
961 | if (SCM_GOOPS_UNBOUNDP (res)) | |
bef95911 | 962 | return scm_call_3 (SCM_VARIABLE_REF (var_slot_unbound), class, obj, slot_name); |
80662eda MD |
963 | return res; |
964 | } | |
398d8ee1 | 965 | #undef FUNC_NAME |
80662eda | 966 | |
398d8ee1 KN |
967 | SCM_DEFINE (scm_slot_set_x, "slot-set!", 3, 0, 0, |
968 | (SCM obj, SCM slot_name, SCM value), | |
6bcefd15 | 969 | "Set the slot named @var{slot_name} of @var{obj} to @var{value}.") |
398d8ee1 | 970 | #define FUNC_NAME s_scm_slot_set_x |
80662eda MD |
971 | { |
972 | SCM class; | |
973 | ||
398d8ee1 | 974 | SCM_VALIDATE_INSTANCE (1, obj); |
80662eda MD |
975 | TEST_CHANGE_CLASS(obj, class); |
976 | ||
977 | return set_slot_value_using_name (class, obj, slot_name, value); | |
978 | } | |
398d8ee1 | 979 | #undef FUNC_NAME |
80662eda | 980 | |
398d8ee1 | 981 | const char *scm_s_slot_set_x = s_scm_slot_set_x; |
80662eda | 982 | |
398d8ee1 KN |
983 | SCM_DEFINE (scm_slot_bound_p, "slot-bound?", 2, 0, 0, |
984 | (SCM obj, SCM slot_name), | |
6bcefd15 MG |
985 | "Return @code{#t} if the slot named @var{slot_name} of @var{obj}\n" |
986 | "is bound.") | |
398d8ee1 | 987 | #define FUNC_NAME s_scm_slot_bound_p |
80662eda MD |
988 | { |
989 | SCM class; | |
990 | ||
398d8ee1 | 991 | SCM_VALIDATE_INSTANCE (1, obj); |
80662eda MD |
992 | TEST_CHANGE_CLASS(obj, class); |
993 | ||
994 | return (SCM_GOOPS_UNBOUNDP (get_slot_value_using_name (class, | |
995 | obj, | |
996 | slot_name)) | |
997 | ? SCM_BOOL_F | |
998 | : SCM_BOOL_T); | |
999 | } | |
398d8ee1 | 1000 | #undef FUNC_NAME |
80662eda | 1001 | |
6d77c894 | 1002 | SCM_DEFINE (scm_slot_exists_p, "slot-exists?", 2, 0, 0, |
398d8ee1 | 1003 | (SCM obj, SCM slot_name), |
6bcefd15 | 1004 | "Return @code{#t} if @var{obj} has a slot named @var{slot_name}.") |
6d77c894 | 1005 | #define FUNC_NAME s_scm_slot_exists_p |
80662eda MD |
1006 | { |
1007 | SCM class; | |
1008 | ||
398d8ee1 KN |
1009 | SCM_VALIDATE_INSTANCE (1, obj); |
1010 | SCM_VALIDATE_SYMBOL (2, slot_name); | |
80662eda MD |
1011 | TEST_CHANGE_CLASS (obj, class); |
1012 | ||
1013 | return test_slot_existence (class, obj, slot_name); | |
1014 | } | |
398d8ee1 | 1015 | #undef FUNC_NAME |
80662eda MD |
1016 | |
1017 | ||
1018 | /****************************************************************************** | |
1019 | * | |
1020 | * %allocate-instance (the low level instance allocation primitive) | |
1021 | * | |
1022 | ******************************************************************************/ | |
1023 | ||
1024 | static void clear_method_cache (SCM); | |
1025 | ||
398d8ee1 KN |
1026 | SCM_DEFINE (scm_sys_allocate_instance, "%allocate-instance", 2, 0, 0, |
1027 | (SCM class, SCM initargs), | |
6bcefd15 MG |
1028 | "Create a new instance of class @var{class} and initialize it\n" |
1029 | "from the arguments @var{initargs}.") | |
398d8ee1 | 1030 | #define FUNC_NAME s_scm_sys_allocate_instance |
80662eda | 1031 | { |
b6cf4d02 | 1032 | SCM obj; |
e25f3727 | 1033 | scm_t_signed_bits n, i; |
b6cf4d02 | 1034 | SCM layout; |
80662eda | 1035 | |
398d8ee1 | 1036 | SCM_VALIDATE_CLASS (1, class); |
80662eda | 1037 | |
b6cf4d02 | 1038 | /* FIXME: duplicates some of scm_make_struct. */ |
80662eda | 1039 | |
e11e83f3 | 1040 | n = SCM_I_INUM (SCM_SLOT (class, scm_si_nfields)); |
96a44c1c | 1041 | obj = scm_i_alloc_struct (SCM_STRUCT_DATA (class), n); |
6d77c894 | 1042 | |
b6cf4d02 AW |
1043 | layout = SCM_VTABLE_LAYOUT (class); |
1044 | ||
1045 | /* Set all SCM-holding slots to unbound */ | |
1046 | for (i = 0; i < n; i++) | |
71fc6438 AW |
1047 | { |
1048 | scm_t_wchar c = scm_i_symbol_ref (layout, i*2); | |
b6cf4d02 AW |
1049 | if (c == 'p') |
1050 | SCM_STRUCT_DATA (obj)[i] = SCM_UNPACK (SCM_GOOPS_UNBOUND); | |
1051 | else if (c == 's') | |
1052 | SCM_STRUCT_DATA (obj)[i] = SCM_UNPACK (obj); | |
1053 | else | |
1054 | SCM_STRUCT_DATA (obj)[i] = 0; | |
80662eda | 1055 | } |
6d77c894 | 1056 | |
b6cf4d02 AW |
1057 | if (SCM_CLASS_FLAGS (class) & SCM_CLASSF_PURE_GENERIC) |
1058 | clear_method_cache (obj); | |
80662eda | 1059 | |
b6cf4d02 | 1060 | return obj; |
80662eda | 1061 | } |
398d8ee1 | 1062 | #undef FUNC_NAME |
80662eda | 1063 | |
398d8ee1 KN |
1064 | SCM_DEFINE (scm_sys_set_object_setter_x, "%set-object-setter!", 2, 0, 0, |
1065 | (SCM obj, SCM setter), | |
1066 | "") | |
1067 | #define FUNC_NAME s_scm_sys_set_object_setter_x | |
80662eda | 1068 | { |
11561496 AW |
1069 | SCM_ASSERT (SCM_STRUCTP (obj) |
1070 | && (SCM_OBJ_CLASS_FLAGS (obj) & SCM_CLASSF_PURE_GENERIC), | |
80662eda MD |
1071 | obj, |
1072 | SCM_ARG1, | |
398d8ee1 | 1073 | FUNC_NAME); |
11561496 | 1074 | SCM_SET_GENERIC_SETTER (obj, setter); |
80662eda MD |
1075 | return SCM_UNSPECIFIED; |
1076 | } | |
398d8ee1 | 1077 | #undef FUNC_NAME |
80662eda MD |
1078 | |
1079 | /****************************************************************************** | |
1080 | * | |
1081 | * %modify-instance (used by change-class to modify in place) | |
6d77c894 | 1082 | * |
80662eda MD |
1083 | ******************************************************************************/ |
1084 | ||
398d8ee1 KN |
1085 | SCM_DEFINE (scm_sys_modify_instance, "%modify-instance", 2, 0, 0, |
1086 | (SCM old, SCM new), | |
1087 | "") | |
1088 | #define FUNC_NAME s_scm_sys_modify_instance | |
80662eda | 1089 | { |
398d8ee1 KN |
1090 | SCM_VALIDATE_INSTANCE (1, old); |
1091 | SCM_VALIDATE_INSTANCE (2, new); | |
80662eda | 1092 | |
6d77c894 | 1093 | /* Exchange the data contained in old and new. We exchange rather than |
80662eda MD |
1094 | * scratch the old value with new to be correct with GC. |
1095 | * See "Class redefinition protocol above". | |
1096 | */ | |
9de87eea | 1097 | SCM_CRITICAL_SECTION_START; |
80662eda | 1098 | { |
32b12f40 KR |
1099 | scm_t_bits word0, word1; |
1100 | word0 = SCM_CELL_WORD_0 (old); | |
1101 | word1 = SCM_CELL_WORD_1 (old); | |
1102 | SCM_SET_CELL_WORD_0 (old, SCM_CELL_WORD_0 (new)); | |
1103 | SCM_SET_CELL_WORD_1 (old, SCM_CELL_WORD_1 (new)); | |
1104 | SCM_SET_CELL_WORD_0 (new, word0); | |
1105 | SCM_SET_CELL_WORD_1 (new, word1); | |
80662eda | 1106 | } |
9de87eea | 1107 | SCM_CRITICAL_SECTION_END; |
80662eda MD |
1108 | return SCM_UNSPECIFIED; |
1109 | } | |
398d8ee1 | 1110 | #undef FUNC_NAME |
80662eda | 1111 | |
398d8ee1 KN |
1112 | SCM_DEFINE (scm_sys_modify_class, "%modify-class", 2, 0, 0, |
1113 | (SCM old, SCM new), | |
1114 | "") | |
1115 | #define FUNC_NAME s_scm_sys_modify_class | |
80662eda | 1116 | { |
398d8ee1 KN |
1117 | SCM_VALIDATE_CLASS (1, old); |
1118 | SCM_VALIDATE_CLASS (2, new); | |
80662eda | 1119 | |
9de87eea | 1120 | SCM_CRITICAL_SECTION_START; |
80662eda | 1121 | { |
32b12f40 KR |
1122 | scm_t_bits word0, word1; |
1123 | word0 = SCM_CELL_WORD_0 (old); | |
1124 | word1 = SCM_CELL_WORD_1 (old); | |
1125 | SCM_SET_CELL_WORD_0 (old, SCM_CELL_WORD_0 (new)); | |
1126 | SCM_SET_CELL_WORD_1 (old, SCM_CELL_WORD_1 (new)); | |
b6cf4d02 | 1127 | SCM_STRUCT_DATA (old)[scm_vtable_index_self] = SCM_UNPACK (old); |
32b12f40 KR |
1128 | SCM_SET_CELL_WORD_0 (new, word0); |
1129 | SCM_SET_CELL_WORD_1 (new, word1); | |
b6cf4d02 | 1130 | SCM_STRUCT_DATA (new)[scm_vtable_index_self] = SCM_UNPACK (new); |
80662eda | 1131 | } |
9de87eea | 1132 | SCM_CRITICAL_SECTION_END; |
80662eda MD |
1133 | return SCM_UNSPECIFIED; |
1134 | } | |
398d8ee1 | 1135 | #undef FUNC_NAME |
80662eda | 1136 | |
398d8ee1 KN |
1137 | SCM_DEFINE (scm_sys_invalidate_class, "%invalidate-class", 1, 0, 0, |
1138 | (SCM class), | |
1139 | "") | |
1140 | #define FUNC_NAME s_scm_sys_invalidate_class | |
80662eda | 1141 | { |
398d8ee1 | 1142 | SCM_VALIDATE_CLASS (1, class); |
80662eda MD |
1143 | SCM_CLEAR_CLASS_FLAGS (class, SCM_CLASSF_GOOPS_VALID); |
1144 | return SCM_UNSPECIFIED; | |
1145 | } | |
398d8ee1 | 1146 | #undef FUNC_NAME |
80662eda MD |
1147 | |
1148 | /* When instances change class, they finally get a new body, but | |
1149 | * before that, they go through purgatory in hell. Odd as it may | |
1150 | * seem, this data structure saves us from eternal suffering in | |
1151 | * infinite recursions. | |
1152 | */ | |
1153 | ||
92c2555f | 1154 | static scm_t_bits **hell; |
c014a02e ML |
1155 | static long n_hell = 1; /* one place for the evil one himself */ |
1156 | static long hell_size = 4; | |
2132f0d2 | 1157 | static SCM hell_mutex; |
80662eda | 1158 | |
c014a02e | 1159 | static long |
80662eda MD |
1160 | burnin (SCM o) |
1161 | { | |
c014a02e | 1162 | long i; |
80662eda | 1163 | for (i = 1; i < n_hell; ++i) |
6b80d352 | 1164 | if (SCM_STRUCT_DATA (o) == hell[i]) |
80662eda MD |
1165 | return i; |
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | static void | |
1170 | go_to_hell (void *o) | |
1171 | { | |
b5df9cda | 1172 | SCM obj = *(SCM*)o; |
2132f0d2 | 1173 | scm_lock_mutex (hell_mutex); |
51ef99f7 | 1174 | if (n_hell >= hell_size) |
80662eda | 1175 | { |
51ef99f7 | 1176 | hell_size *= 2; |
408bcd99 | 1177 | hell = scm_realloc (hell, hell_size * sizeof(*hell)); |
80662eda | 1178 | } |
6b80d352 | 1179 | hell[n_hell++] = SCM_STRUCT_DATA (obj); |
2132f0d2 | 1180 | scm_unlock_mutex (hell_mutex); |
80662eda MD |
1181 | } |
1182 | ||
1183 | static void | |
1184 | go_to_heaven (void *o) | |
1185 | { | |
b5df9cda | 1186 | SCM obj = *(SCM*)o; |
2132f0d2 | 1187 | scm_lock_mutex (hell_mutex); |
b5df9cda | 1188 | hell[burnin (obj)] = hell[--n_hell]; |
2132f0d2 | 1189 | scm_unlock_mutex (hell_mutex); |
80662eda MD |
1190 | } |
1191 | ||
6b80d352 DH |
1192 | |
1193 | SCM_SYMBOL (scm_sym_change_class, "change-class"); | |
1194 | ||
80662eda | 1195 | static SCM |
b5df9cda | 1196 | purgatory (SCM obj, SCM new_class) |
80662eda | 1197 | { |
b5df9cda | 1198 | return scm_call_2 (SCM_VARIABLE_REF (var_change_class), obj, new_class); |
80662eda MD |
1199 | } |
1200 | ||
38d8927c MD |
1201 | /* This function calls the generic function change-class for all |
1202 | * instances which aren't currently undergoing class change. | |
1203 | */ | |
1204 | ||
80662eda | 1205 | void |
e81d98ec | 1206 | scm_change_object_class (SCM obj, SCM old_class SCM_UNUSED, SCM new_class) |
80662eda MD |
1207 | { |
1208 | if (!burnin (obj)) | |
b5df9cda AW |
1209 | { |
1210 | scm_dynwind_begin (SCM_F_DYNWIND_REWINDABLE); | |
1211 | scm_dynwind_rewind_handler (go_to_hell, &obj, SCM_F_WIND_EXPLICITLY); | |
1212 | scm_dynwind_unwind_handler (go_to_heaven, &obj, SCM_F_WIND_EXPLICITLY); | |
1213 | purgatory (obj, new_class); | |
1214 | scm_dynwind_end (); | |
1215 | } | |
80662eda MD |
1216 | } |
1217 | ||
1218 | /****************************************************************************** | |
1219 | * | |
6d77c894 TTN |
1220 | * GGGG FFFFF |
1221 | * G F | |
1222 | * G GG FFF | |
1223 | * G G F | |
80662eda MD |
1224 | * GGG E N E R I C F U N C T I O N S |
1225 | * | |
1226 | * This implementation provides | |
1227 | * - generic functions (with class specializers) | |
1228 | * - multi-methods | |
6d77c894 | 1229 | * - next-method |
80662eda MD |
1230 | * - a hard-coded MOP for standard gf, which can be overloaded for non-std gf |
1231 | * | |
1232 | ******************************************************************************/ | |
1233 | ||
1234 | SCM_KEYWORD (k_name, "name"); | |
1235 | ||
63c1872f | 1236 | SCM_GLOBAL_SYMBOL (scm_sym_args, "args"); |
80662eda | 1237 | |
e29db33c | 1238 | SCM_SYMBOL (sym_delayed_compile, "delayed-compile"); |
efcebb5b | 1239 | |
60617d81 MW |
1240 | static SCM delayed_compile_var; |
1241 | ||
1242 | static void | |
1243 | init_delayed_compile_var (void) | |
1244 | { | |
1245 | delayed_compile_var | |
1246 | = scm_c_private_lookup ("oop goops dispatch", "delayed-compile"); | |
1247 | } | |
1248 | ||
e29db33c AW |
1249 | static SCM |
1250 | make_dispatch_procedure (SCM gf) | |
1251 | { | |
60617d81 MW |
1252 | static scm_i_pthread_once_t once = SCM_I_PTHREAD_ONCE_INIT; |
1253 | scm_i_pthread_once (&once, init_delayed_compile_var); | |
1254 | ||
1255 | return scm_call_1 (scm_variable_ref (delayed_compile_var), gf); | |
e29db33c AW |
1256 | } |
1257 | ||
80662eda MD |
1258 | static void |
1259 | clear_method_cache (SCM gf) | |
1260 | { | |
e29db33c | 1261 | SCM_SET_GENERIC_DISPATCH_PROCEDURE (gf, make_dispatch_procedure (gf)); |
a9a90a88 | 1262 | SCM_CLEAR_GENERIC_EFFECTIVE_METHODS (gf); |
80662eda MD |
1263 | } |
1264 | ||
398d8ee1 KN |
1265 | SCM_DEFINE (scm_sys_invalidate_method_cache_x, "%invalidate-method-cache!", 1, 0, 0, |
1266 | (SCM gf), | |
1267 | "") | |
1268 | #define FUNC_NAME s_scm_sys_invalidate_method_cache_x | |
80662eda | 1269 | { |
25ba37df | 1270 | SCM_ASSERT (SCM_PUREGENERICP (gf), gf, SCM_ARG1, FUNC_NAME); |
6d33e90f | 1271 | clear_method_cache (gf); |
80662eda MD |
1272 | return SCM_UNSPECIFIED; |
1273 | } | |
398d8ee1 | 1274 | #undef FUNC_NAME |
80662eda | 1275 | |
398d8ee1 KN |
1276 | SCM_DEFINE (scm_generic_capability_p, "generic-capability?", 1, 0, 0, |
1277 | (SCM proc), | |
1278 | "") | |
1279 | #define FUNC_NAME s_scm_generic_capability_p | |
80662eda | 1280 | { |
7888309b | 1281 | SCM_ASSERT (scm_is_true (scm_procedure_p (proc)), |
398d8ee1 | 1282 | proc, SCM_ARG1, FUNC_NAME); |
9fdf9fd3 | 1283 | return (SCM_PRIMITIVE_GENERIC_P (proc) ? SCM_BOOL_T : SCM_BOOL_F); |
80662eda | 1284 | } |
398d8ee1 | 1285 | #undef FUNC_NAME |
80662eda | 1286 | |
398d8ee1 KN |
1287 | SCM_DEFINE (scm_enable_primitive_generic_x, "enable-primitive-generic!", 0, 0, 1, |
1288 | (SCM subrs), | |
1289 | "") | |
1290 | #define FUNC_NAME s_scm_enable_primitive_generic_x | |
80662eda | 1291 | { |
6b80d352 | 1292 | SCM_VALIDATE_REST_ARGUMENT (subrs); |
d2e53ed6 | 1293 | while (!scm_is_null (subrs)) |
80662eda MD |
1294 | { |
1295 | SCM subr = SCM_CAR (subrs); | |
9fdf9fd3 | 1296 | SCM_ASSERT (SCM_PRIMITIVE_GENERIC_P (subr), subr, SCM_ARGn, FUNC_NAME); |
52fd9639 AW |
1297 | SCM_SET_SUBR_GENERIC (subr, |
1298 | scm_make (scm_list_3 (scm_class_generic, | |
1299 | k_name, | |
1300 | SCM_SUBR_NAME (subr)))); | |
80662eda MD |
1301 | subrs = SCM_CDR (subrs); |
1302 | } | |
1303 | return SCM_UNSPECIFIED; | |
1304 | } | |
398d8ee1 | 1305 | #undef FUNC_NAME |
80662eda | 1306 | |
9f63ce02 AW |
1307 | SCM_DEFINE (scm_set_primitive_generic_x, "set-primitive-generic!", 2, 0, 0, |
1308 | (SCM subr, SCM generic), | |
1309 | "") | |
1310 | #define FUNC_NAME s_scm_set_primitive_generic_x | |
1311 | { | |
9fdf9fd3 | 1312 | SCM_ASSERT (SCM_PRIMITIVE_GENERIC_P (subr), subr, SCM_ARG1, FUNC_NAME); |
9f63ce02 | 1313 | SCM_ASSERT (SCM_PUREGENERICP (generic), generic, SCM_ARG2, FUNC_NAME); |
52fd9639 | 1314 | SCM_SET_SUBR_GENERIC (subr, generic); |
9f63ce02 AW |
1315 | return SCM_UNSPECIFIED; |
1316 | } | |
1317 | #undef FUNC_NAME | |
1318 | ||
398d8ee1 KN |
1319 | SCM_DEFINE (scm_primitive_generic_generic, "primitive-generic-generic", 1, 0, 0, |
1320 | (SCM subr), | |
1321 | "") | |
1322 | #define FUNC_NAME s_scm_primitive_generic_generic | |
80662eda | 1323 | { |
9fdf9fd3 | 1324 | if (SCM_PRIMITIVE_GENERIC_P (subr)) |
80662eda | 1325 | { |
b2b33168 | 1326 | if (!SCM_UNPACK (*SCM_SUBR_GENERIC (subr))) |
a48d60b1 MD |
1327 | scm_enable_primitive_generic_x (scm_list_1 (subr)); |
1328 | return *SCM_SUBR_GENERIC (subr); | |
80662eda | 1329 | } |
db4b4ca6 | 1330 | SCM_WRONG_TYPE_ARG (SCM_ARG1, subr); |
80662eda | 1331 | } |
398d8ee1 | 1332 | #undef FUNC_NAME |
80662eda | 1333 | |
a48d60b1 MD |
1334 | typedef struct t_extension { |
1335 | struct t_extension *next; | |
1336 | SCM extended; | |
1337 | SCM extension; | |
1338 | } t_extension; | |
1339 | ||
d0cad249 LC |
1340 | |
1341 | /* Hint for `scm_gc_malloc ()' et al. when allocating `t_extension' | |
1342 | objects. */ | |
1343 | static const char extension_gc_hint[] = "GOOPS extension"; | |
1344 | ||
a48d60b1 MD |
1345 | static t_extension *extensions = 0; |
1346 | ||
a48d60b1 MD |
1347 | void |
1348 | scm_c_extend_primitive_generic (SCM extended, SCM extension) | |
1349 | { | |
1350 | if (goops_loaded_p) | |
1351 | { | |
1352 | SCM gf, gext; | |
b2b33168 | 1353 | if (!SCM_UNPACK (*SCM_SUBR_GENERIC (extended))) |
a48d60b1 MD |
1354 | scm_enable_primitive_generic_x (scm_list_1 (extended)); |
1355 | gf = *SCM_SUBR_GENERIC (extended); | |
1356 | gext = scm_call_2 (SCM_VARIABLE_REF (scm_var_make_extended_generic), | |
1357 | gf, | |
ce471ab8 | 1358 | SCM_SUBR_NAME (extension)); |
feccd2d3 | 1359 | SCM_SET_SUBR_GENERIC (extension, gext); |
a48d60b1 MD |
1360 | } |
1361 | else | |
1362 | { | |
d0cad249 LC |
1363 | t_extension *e = scm_gc_malloc (sizeof (t_extension), |
1364 | extension_gc_hint); | |
a48d60b1 MD |
1365 | t_extension **loc = &extensions; |
1366 | /* Make sure that extensions are placed before their own | |
1367 | * extensions in the extensions list. O(N^2) algorithm, but | |
1368 | * extensions of primitive generics are rare. | |
1369 | */ | |
d223c3fc | 1370 | while (*loc && !scm_is_eq (extension, (*loc)->extended)) |
a48d60b1 MD |
1371 | loc = &(*loc)->next; |
1372 | e->next = *loc; | |
1373 | e->extended = extended; | |
1374 | e->extension = extension; | |
1375 | *loc = e; | |
1376 | } | |
1377 | } | |
1378 | ||
1379 | static void | |
1380 | setup_extended_primitive_generics () | |
1381 | { | |
1382 | while (extensions) | |
1383 | { | |
1384 | t_extension *e = extensions; | |
1385 | scm_c_extend_primitive_generic (e->extended, e->extension); | |
1386 | extensions = e->next; | |
a48d60b1 MD |
1387 | } |
1388 | } | |
1389 | ||
fa075d40 AW |
1390 | /* Dirk:FIXME:: In all of these scm_wta_dispatch_* routines it is |
1391 | * assumed that 'gf' is zero if uninitialized. It would be cleaner if | |
1392 | * some valid SCM value like SCM_BOOL_F or SCM_UNDEFINED were chosen. | |
1393 | */ | |
1394 | ||
1395 | SCM | |
1396 | scm_wta_dispatch_0 (SCM gf, const char *subr) | |
1397 | { | |
1398 | if (!SCM_UNPACK (gf)) | |
1399 | scm_error_num_args_subr (subr); | |
1400 | ||
1401 | return scm_call_0 (gf); | |
1402 | } | |
1403 | ||
1404 | SCM | |
1405 | scm_wta_dispatch_1 (SCM gf, SCM a1, int pos, const char *subr) | |
1406 | { | |
1407 | if (!SCM_UNPACK (gf)) | |
1408 | scm_wrong_type_arg (subr, pos, a1); | |
1409 | ||
1410 | return scm_call_1 (gf, a1); | |
1411 | } | |
1412 | ||
1413 | SCM | |
1414 | scm_wta_dispatch_2 (SCM gf, SCM a1, SCM a2, int pos, const char *subr) | |
1415 | { | |
1416 | if (!SCM_UNPACK (gf)) | |
1417 | scm_wrong_type_arg (subr, pos, (pos == SCM_ARG1) ? a1 : a2); | |
1418 | ||
1419 | return scm_call_2 (gf, a1, a2); | |
1420 | } | |
1421 | ||
1422 | SCM | |
1423 | scm_wta_dispatch_n (SCM gf, SCM args, int pos, const char *subr) | |
1424 | { | |
1425 | if (!SCM_UNPACK (gf)) | |
1426 | scm_wrong_type_arg (subr, pos, scm_list_ref (args, scm_from_int (pos))); | |
1427 | ||
1428 | return scm_apply_0 (gf, args); | |
1429 | } | |
1430 | ||
80662eda | 1431 | /****************************************************************************** |
6d77c894 | 1432 | * |
80662eda | 1433 | * Protocol for calling a generic fumction |
6d77c894 | 1434 | * This protocol is roughly equivalent to (parameter are a little bit different |
80662eda MD |
1435 | * for efficiency reasons): |
1436 | * | |
1437 | * + apply-generic (gf args) | |
1438 | * + compute-applicable-methods (gf args ...) | |
1439 | * + sort-applicable-methods (methods args) | |
1440 | * + apply-methods (gf methods args) | |
6d77c894 TTN |
1441 | * |
1442 | * apply-methods calls make-next-method to build the "continuation" of a a | |
80662eda MD |
1443 | * method. Applying a next-method will call apply-next-method which in |
1444 | * turn will call apply again to call effectively the following method. | |
1445 | * | |
1446 | ******************************************************************************/ | |
1447 | ||
80662eda MD |
1448 | /****************************************************************************** |
1449 | * | |
1450 | * A simple make (which will be redefined later in Scheme) | |
1451 | * This version handles only creation of gf, methods and classes (no instances) | |
1452 | * | |
6d77c894 | 1453 | * Since this code will disappear when Goops will be fully booted, |
80662eda MD |
1454 | * no precaution is taken to be efficient. |
1455 | * | |
1456 | ******************************************************************************/ | |
1457 | ||
1458 | SCM_KEYWORD (k_setter, "setter"); | |
1459 | SCM_KEYWORD (k_specializers, "specializers"); | |
1460 | SCM_KEYWORD (k_procedure, "procedure"); | |
5487977b AW |
1461 | SCM_KEYWORD (k_formals, "formals"); |
1462 | SCM_KEYWORD (k_body, "body"); | |
e177058b | 1463 | SCM_KEYWORD (k_make_procedure, "make-procedure"); |
80662eda MD |
1464 | SCM_KEYWORD (k_dsupers, "dsupers"); |
1465 | SCM_KEYWORD (k_slots, "slots"); | |
1466 | SCM_KEYWORD (k_gf, "generic-function"); | |
1467 | ||
398d8ee1 KN |
1468 | SCM_DEFINE (scm_make, "make", 0, 0, 1, |
1469 | (SCM args), | |
27c37006 | 1470 | "Make a new object. @var{args} must contain the class and\n" |
6bcefd15 | 1471 | "all necessary initialization information.") |
398d8ee1 | 1472 | #define FUNC_NAME s_scm_make |
80662eda MD |
1473 | { |
1474 | SCM class, z; | |
c014a02e | 1475 | long len = scm_ilength (args); |
80662eda MD |
1476 | |
1477 | if (len <= 0 || (len & 1) == 0) | |
398d8ee1 | 1478 | SCM_WRONG_NUM_ARGS (); |
80662eda MD |
1479 | |
1480 | class = SCM_CAR(args); | |
1481 | args = SCM_CDR(args); | |
1482 | ||
d223c3fc AW |
1483 | if (scm_is_eq (class, scm_class_generic) |
1484 | || scm_is_eq (class, scm_class_accessor)) | |
80662eda | 1485 | { |
80662eda | 1486 | z = scm_make_struct (class, SCM_INUM0, |
72d2e7e6 | 1487 | scm_list_4 (SCM_BOOL_F, |
51f66c91 | 1488 | SCM_EOL, |
1afff620 | 1489 | SCM_INUM0, |
bbf8d523 | 1490 | SCM_EOL)); |
80662eda MD |
1491 | scm_set_procedure_property_x (z, scm_sym_name, |
1492 | scm_get_keyword (k_name, | |
1493 | args, | |
1494 | SCM_BOOL_F)); | |
1495 | clear_method_cache (z); | |
d223c3fc | 1496 | if (scm_is_eq (class, scm_class_accessor)) |
80662eda MD |
1497 | { |
1498 | SCM setter = scm_get_keyword (k_setter, args, SCM_BOOL_F); | |
7888309b | 1499 | if (scm_is_true (setter)) |
80662eda MD |
1500 | scm_sys_set_object_setter_x (z, setter); |
1501 | } | |
1502 | } | |
1503 | else | |
1504 | { | |
1505 | z = scm_sys_allocate_instance (class, args); | |
1506 | ||
d223c3fc AW |
1507 | if (scm_is_eq (class, scm_class_method) |
1508 | || scm_is_eq (class, scm_class_accessor_method)) | |
80662eda | 1509 | { |
6d77c894 | 1510 | SCM_SET_SLOT (z, scm_si_generic_function, |
80662eda MD |
1511 | scm_i_get_keyword (k_gf, |
1512 | args, | |
1513 | len - 1, | |
1514 | SCM_BOOL_F, | |
dcb410ec | 1515 | FUNC_NAME)); |
6d77c894 | 1516 | SCM_SET_SLOT (z, scm_si_specializers, |
80662eda MD |
1517 | scm_i_get_keyword (k_specializers, |
1518 | args, | |
1519 | len - 1, | |
1520 | SCM_EOL, | |
dcb410ec | 1521 | FUNC_NAME)); |
6d77c894 | 1522 | SCM_SET_SLOT (z, scm_si_procedure, |
80662eda MD |
1523 | scm_i_get_keyword (k_procedure, |
1524 | args, | |
1525 | len - 1, | |
e177058b | 1526 | SCM_BOOL_F, |
dcb410ec | 1527 | FUNC_NAME)); |
5487977b AW |
1528 | SCM_SET_SLOT (z, scm_si_formals, |
1529 | scm_i_get_keyword (k_formals, | |
1530 | args, | |
1531 | len - 1, | |
1532 | SCM_EOL, | |
1533 | FUNC_NAME)); | |
1534 | SCM_SET_SLOT (z, scm_si_body, | |
1535 | scm_i_get_keyword (k_body, | |
1536 | args, | |
1537 | len - 1, | |
1538 | SCM_EOL, | |
1539 | FUNC_NAME)); | |
e177058b AW |
1540 | SCM_SET_SLOT (z, scm_si_make_procedure, |
1541 | scm_i_get_keyword (k_make_procedure, | |
5487977b AW |
1542 | args, |
1543 | len - 1, | |
1544 | SCM_BOOL_F, | |
1545 | FUNC_NAME)); | |
80662eda MD |
1546 | } |
1547 | else | |
1548 | { | |
1549 | /* In all the others case, make a new class .... No instance here */ | |
b6cf4d02 | 1550 | SCM_SET_SLOT (z, scm_vtable_index_name, |
80662eda MD |
1551 | scm_i_get_keyword (k_name, |
1552 | args, | |
1553 | len - 1, | |
4a655e50 | 1554 | scm_from_latin1_symbol ("???"), |
dcb410ec | 1555 | FUNC_NAME)); |
6d77c894 | 1556 | SCM_SET_SLOT (z, scm_si_direct_supers, |
80662eda MD |
1557 | scm_i_get_keyword (k_dsupers, |
1558 | args, | |
1559 | len - 1, | |
1560 | SCM_EOL, | |
dcb410ec | 1561 | FUNC_NAME)); |
6d77c894 | 1562 | SCM_SET_SLOT (z, scm_si_direct_slots, |
80662eda MD |
1563 | scm_i_get_keyword (k_slots, |
1564 | args, | |
1565 | len - 1, | |
1566 | SCM_EOL, | |
dcb410ec | 1567 | FUNC_NAME)); |
80662eda MD |
1568 | } |
1569 | } | |
1570 | return z; | |
1571 | } | |
398d8ee1 | 1572 | #undef FUNC_NAME |
80662eda | 1573 | |
80662eda | 1574 | |
80662eda MD |
1575 | /********************************************************************** |
1576 | * | |
1577 | * Smob classes | |
1578 | * | |
1579 | **********************************************************************/ | |
1580 | ||
1581 | static SCM | |
da0e6c2b | 1582 | make_class_from_template (char const *template, char const *type_name, SCM supers, int applicablep) |
80662eda | 1583 | { |
51fd1cd6 AW |
1584 | SCM meta, name; |
1585 | ||
80662eda MD |
1586 | if (type_name) |
1587 | { | |
1588 | char buffer[100]; | |
1589 | sprintf (buffer, template, type_name); | |
25d50a05 | 1590 | name = scm_from_utf8_symbol (buffer); |
80662eda MD |
1591 | } |
1592 | else | |
1593 | name = SCM_GOOPS_UNBOUND; | |
1594 | ||
51fd1cd6 AW |
1595 | meta = applicablep ? scm_class_procedure_class : scm_class_class; |
1596 | ||
28b818d3 | 1597 | return scm_make_standard_class (meta, name, supers, SCM_EOL); |
80662eda MD |
1598 | } |
1599 | ||
9db8cf16 MG |
1600 | static SCM |
1601 | make_class_from_symbol (SCM type_name_sym, SCM supers, int applicablep) | |
1602 | { | |
51fd1cd6 | 1603 | SCM meta, name; |
28d0871b | 1604 | |
393baa8a | 1605 | if (scm_is_true (type_name_sym)) |
9db8cf16 MG |
1606 | { |
1607 | name = scm_string_append (scm_list_3 (scm_from_locale_string ("<"), | |
1608 | scm_symbol_to_string (type_name_sym), | |
1609 | scm_from_locale_string (">"))); | |
1610 | name = scm_string_to_symbol (name); | |
1611 | } | |
1612 | else | |
1613 | name = SCM_GOOPS_UNBOUND; | |
1614 | ||
51fd1cd6 AW |
1615 | meta = applicablep ? scm_class_procedure_class : scm_class_class; |
1616 | ||
28b818d3 | 1617 | return scm_make_standard_class (meta, name, supers, SCM_EOL); |
9db8cf16 MG |
1618 | } |
1619 | ||
80662eda | 1620 | SCM |
da0e6c2b | 1621 | scm_make_extended_class (char const *type_name, int applicablep) |
80662eda MD |
1622 | { |
1623 | return make_class_from_template ("<%s>", | |
1624 | type_name, | |
74b6d6e4 MD |
1625 | scm_list_1 (applicablep |
1626 | ? scm_class_applicable | |
1627 | : scm_class_top), | |
1628 | applicablep); | |
1629 | } | |
1630 | ||
9db8cf16 MG |
1631 | static SCM |
1632 | scm_make_extended_class_from_symbol (SCM type_name_sym, int applicablep) | |
1633 | { | |
1634 | return make_class_from_symbol (type_name_sym, | |
1635 | scm_list_1 (applicablep | |
1636 | ? scm_class_applicable | |
1637 | : scm_class_top), | |
1638 | applicablep); | |
1639 | } | |
1640 | ||
74b6d6e4 MD |
1641 | void |
1642 | scm_i_inherit_applicable (SCM c) | |
1643 | { | |
1644 | if (!SCM_SUBCLASSP (c, scm_class_applicable)) | |
1645 | { | |
1646 | SCM dsupers = SCM_SLOT (c, scm_si_direct_supers); | |
1647 | SCM cpl = SCM_SLOT (c, scm_si_cpl); | |
1648 | /* patch scm_class_applicable into direct-supers */ | |
1649 | SCM top = scm_c_memq (scm_class_top, dsupers); | |
7888309b | 1650 | if (scm_is_false (top)) |
74b6d6e4 MD |
1651 | dsupers = scm_append (scm_list_2 (dsupers, |
1652 | scm_list_1 (scm_class_applicable))); | |
1653 | else | |
1654 | { | |
1655 | SCM_SETCAR (top, scm_class_applicable); | |
1656 | SCM_SETCDR (top, scm_cons (scm_class_top, SCM_CDR (top))); | |
1657 | } | |
1658 | SCM_SET_SLOT (c, scm_si_direct_supers, dsupers); | |
1659 | /* patch scm_class_applicable into cpl */ | |
1660 | top = scm_c_memq (scm_class_top, cpl); | |
7888309b | 1661 | if (scm_is_false (top)) |
74b6d6e4 MD |
1662 | abort (); |
1663 | else | |
1664 | { | |
1665 | SCM_SETCAR (top, scm_class_applicable); | |
1666 | SCM_SETCDR (top, scm_cons (scm_class_top, SCM_CDR (top))); | |
1667 | } | |
1668 | /* add class to direct-subclasses of scm_class_applicable */ | |
1669 | SCM_SET_SLOT (scm_class_applicable, | |
1670 | scm_si_direct_subclasses, | |
1671 | scm_cons (c, SCM_SLOT (scm_class_applicable, | |
1672 | scm_si_direct_subclasses))); | |
1673 | } | |
80662eda MD |
1674 | } |
1675 | ||
1676 | static void | |
1677 | create_smob_classes (void) | |
1678 | { | |
c014a02e | 1679 | long i; |
80662eda | 1680 | |
c891a40e | 1681 | for (i = 0; i < SCM_I_MAX_SMOB_TYPE_COUNT; ++i) |
393baa8a | 1682 | scm_smob_class[i] = SCM_BOOL_F; |
80662eda | 1683 | |
80662eda | 1684 | for (i = 0; i < scm_numsmob; ++i) |
393baa8a | 1685 | if (scm_is_false (scm_smob_class[i])) |
74b6d6e4 MD |
1686 | scm_smob_class[i] = scm_make_extended_class (SCM_SMOBNAME (i), |
1687 | scm_smobs[i].apply != 0); | |
80662eda MD |
1688 | } |
1689 | ||
1690 | void | |
c014a02e | 1691 | scm_make_port_classes (long ptobnum, char *type_name) |
80662eda MD |
1692 | { |
1693 | SCM c, class = make_class_from_template ("<%s-port>", | |
1694 | type_name, | |
74b6d6e4 MD |
1695 | scm_list_1 (scm_class_port), |
1696 | 0); | |
80662eda MD |
1697 | scm_port_class[SCM_IN_PCLASS_INDEX + ptobnum] |
1698 | = make_class_from_template ("<%s-input-port>", | |
1699 | type_name, | |
74b6d6e4 MD |
1700 | scm_list_2 (class, scm_class_input_port), |
1701 | 0); | |
80662eda MD |
1702 | scm_port_class[SCM_OUT_PCLASS_INDEX + ptobnum] |
1703 | = make_class_from_template ("<%s-output-port>", | |
1704 | type_name, | |
74b6d6e4 MD |
1705 | scm_list_2 (class, scm_class_output_port), |
1706 | 0); | |
80662eda MD |
1707 | scm_port_class[SCM_INOUT_PCLASS_INDEX + ptobnum] |
1708 | = c | |
1709 | = make_class_from_template ("<%s-input-output-port>", | |
1710 | type_name, | |
74b6d6e4 MD |
1711 | scm_list_2 (class, scm_class_input_output_port), |
1712 | 0); | |
80662eda | 1713 | /* Patch cpl (since this tree is too complex for the C level compute-cpl) */ |
dcb410ec DH |
1714 | SCM_SET_SLOT (c, scm_si_cpl, |
1715 | scm_cons2 (c, class, SCM_SLOT (scm_class_input_output_port, scm_si_cpl))); | |
80662eda MD |
1716 | } |
1717 | ||
1718 | static void | |
1719 | create_port_classes (void) | |
1720 | { | |
c014a02e | 1721 | long i; |
80662eda | 1722 | |
62bd5d66 | 1723 | for (i = scm_c_num_port_types () - 1; i >= 0; i--) |
80662eda MD |
1724 | scm_make_port_classes (i, SCM_PTOBNAME (i)); |
1725 | } | |
1726 | ||
1727 | static SCM | |
74b6d6e4 MD |
1728 | make_struct_class (void *closure SCM_UNUSED, |
1729 | SCM vtable, SCM data, SCM prev SCM_UNUSED) | |
80662eda | 1730 | { |
f3c6a02c AW |
1731 | if (scm_is_false (data)) |
1732 | scm_i_define_class_for_vtable (vtable); | |
80662eda MD |
1733 | return SCM_UNSPECIFIED; |
1734 | } | |
1735 | ||
1736 | static void | |
1737 | create_struct_classes (void) | |
1738 | { | |
ea742d29 | 1739 | /* FIXME: take the vtable_class_map while initializing goops? */ |
f3c6a02c AW |
1740 | scm_internal_hash_fold (make_struct_class, 0, SCM_BOOL_F, |
1741 | vtable_class_map); | |
80662eda MD |
1742 | } |
1743 | ||
1744 | /********************************************************************** | |
1745 | * | |
1746 | * C interface | |
1747 | * | |
1748 | **********************************************************************/ | |
1749 | ||
1750 | void | |
1751 | scm_load_goops () | |
1752 | { | |
1753 | if (!goops_loaded_p) | |
abd28220 | 1754 | scm_c_resolve_module ("oop goops"); |
80662eda MD |
1755 | } |
1756 | ||
e11208ca | 1757 | |
80662eda MD |
1758 | SCM |
1759 | scm_ensure_accessor (SCM name) | |
1760 | { | |
3f48638c AW |
1761 | SCM var, gf; |
1762 | ||
1763 | var = scm_module_variable (scm_current_module (), name); | |
1764 | if (SCM_VARIABLEP (var) && !SCM_UNBNDP (SCM_VARIABLE_REF (var))) | |
1765 | gf = SCM_VARIABLE_REF (var); | |
1766 | else | |
1767 | gf = SCM_BOOL_F; | |
1768 | ||
f8af5c6d | 1769 | if (!SCM_IS_A_P (gf, scm_class_accessor)) |
80662eda | 1770 | { |
1afff620 | 1771 | gf = scm_make (scm_list_3 (scm_class_generic, k_name, name)); |
f8af5c6d | 1772 | gf = scm_make (scm_list_5 (scm_class_accessor, |
1afff620 | 1773 | k_name, name, k_setter, gf)); |
80662eda | 1774 | } |
3f48638c | 1775 | |
80662eda MD |
1776 | return gf; |
1777 | } | |
1778 | ||
80662eda MD |
1779 | #ifdef GUILE_DEBUG |
1780 | /* | |
1781 | * Debugging utilities | |
1782 | */ | |
1783 | ||
398d8ee1 KN |
1784 | SCM_DEFINE (scm_pure_generic_p, "pure-generic?", 1, 0, 0, |
1785 | (SCM obj), | |
6bcefd15 | 1786 | "Return @code{#t} if @var{obj} is a pure generic.") |
398d8ee1 | 1787 | #define FUNC_NAME s_scm_pure_generic_p |
80662eda | 1788 | { |
7888309b | 1789 | return scm_from_bool (SCM_PUREGENERICP (obj)); |
80662eda | 1790 | } |
398d8ee1 | 1791 | #undef FUNC_NAME |
80662eda MD |
1792 | |
1793 | #endif /* GUILE_DEBUG */ | |
1794 | ||
1795 | /* | |
1796 | * Initialization | |
1797 | */ | |
1798 | ||
51fd1cd6 AW |
1799 | SCM_DEFINE (scm_sys_bless_applicable_struct_vtable_x, "%bless-applicable-struct-vtable!", 1, 0, 0, |
1800 | (SCM vtable), | |
1801 | "") | |
1802 | #define FUNC_NAME s_scm_sys_bless_applicable_struct_vtable_x | |
1803 | { | |
1804 | SCM_VALIDATE_CLASS (1, vtable); | |
1805 | SCM_SET_VTABLE_FLAGS (vtable, SCM_VTABLE_FLAG_APPLICABLE_VTABLE); | |
1806 | return SCM_UNSPECIFIED; | |
1807 | } | |
1808 | #undef FUNC_NAME | |
1809 | ||
1810 | SCM_DEFINE (scm_sys_bless_pure_generic_vtable_x, "%bless-pure-generic-vtable!", 1, 0, 0, | |
1811 | (SCM vtable), | |
1812 | "") | |
1813 | #define FUNC_NAME s_scm_sys_bless_pure_generic_vtable_x | |
1814 | { | |
1815 | SCM_VALIDATE_CLASS (1, vtable); | |
1816 | SCM_SET_CLASS_FLAGS (vtable, SCM_CLASSF_PURE_GENERIC); | |
1817 | return SCM_UNSPECIFIED; | |
1818 | } | |
1819 | #undef FUNC_NAME | |
1820 | ||
82ab5090 AW |
1821 | SCM_DEFINE (scm_sys_goops_early_init, "%goops-early-init", 0, 0, 0, |
1822 | (), | |
1823 | "") | |
1824 | #define FUNC_NAME s_scm_sys_goops_early_init | |
1825 | { | |
51fd1cd6 AW |
1826 | var_make_standard_class = scm_c_lookup ("make-standard-class"); |
1827 | ||
1828 | scm_class_class = scm_variable_ref (scm_c_lookup ("<class>")); | |
1829 | scm_class_top = scm_variable_ref (scm_c_lookup ("<top>")); | |
1830 | scm_class_object = scm_variable_ref (scm_c_lookup ("<object>")); | |
1831 | ||
1832 | scm_class_foreign_slot = scm_variable_ref (scm_c_lookup ("<foreign-slot>")); | |
1833 | scm_class_protected = scm_variable_ref (scm_c_lookup ("<protected-slot>")); | |
1834 | scm_class_hidden = scm_variable_ref (scm_c_lookup ("<hidden-slot>")); | |
1835 | scm_class_opaque = scm_variable_ref (scm_c_lookup ("<opaque-slot>")); | |
1836 | scm_class_read_only = scm_variable_ref (scm_c_lookup ("<read-only-slot>")); | |
1837 | scm_class_self = scm_variable_ref (scm_c_lookup ("<self-slot>")); | |
1838 | scm_class_protected_opaque = scm_variable_ref (scm_c_lookup ("<protected-opaque-slot>")); | |
1839 | scm_class_protected_hidden = scm_variable_ref (scm_c_lookup ("<protected-hidden-slot>")); | |
1840 | scm_class_protected_read_only = scm_variable_ref (scm_c_lookup ("<protected-read-only-slot>")); | |
1841 | scm_class_scm = scm_variable_ref (scm_c_lookup ("<scm-slot>")); | |
1842 | scm_class_int = scm_variable_ref (scm_c_lookup ("<int-slot>")); | |
1843 | scm_class_float = scm_variable_ref (scm_c_lookup ("<float-slot>")); | |
1844 | scm_class_double = scm_variable_ref (scm_c_lookup ("<double-slot>")); | |
1845 | ||
1846 | /* scm_class_generic functions classes */ | |
1847 | scm_class_procedure_class = scm_variable_ref (scm_c_lookup ("<procedure-class>")); | |
1848 | scm_class_applicable_struct_class = scm_variable_ref (scm_c_lookup ("<applicable-struct-class>")); | |
1849 | ||
1850 | scm_class_method = scm_variable_ref (scm_c_lookup ("<method>")); | |
1851 | scm_class_accessor_method = scm_variable_ref (scm_c_lookup ("<accessor-method>")); | |
1852 | scm_class_applicable = scm_variable_ref (scm_c_lookup ("<applicable>")); | |
1853 | scm_class_applicable_struct = scm_variable_ref (scm_c_lookup ("<applicable-struct>")); | |
1854 | scm_class_generic = scm_variable_ref (scm_c_lookup ("<generic>")); | |
1855 | scm_class_extended_generic = scm_variable_ref (scm_c_lookup ("<extended-generic>")); | |
1856 | scm_class_generic_with_setter = scm_variable_ref (scm_c_lookup ("<generic-with-setter>")); | |
1857 | scm_class_accessor = scm_variable_ref (scm_c_lookup ("<accessor>")); | |
1858 | scm_class_extended_generic_with_setter = scm_variable_ref (scm_c_lookup ("<extended-generic-with-setter>")); | |
1859 | scm_class_extended_accessor = scm_variable_ref (scm_c_lookup ("<extended-accessor>")); | |
1860 | ||
1861 | /* Primitive types classes */ | |
1862 | scm_class_boolean = scm_variable_ref (scm_c_lookup ("<boolean>")); | |
1863 | scm_class_char = scm_variable_ref (scm_c_lookup ("<char>")); | |
1864 | scm_class_list = scm_variable_ref (scm_c_lookup ("<list>")); | |
1865 | scm_class_pair = scm_variable_ref (scm_c_lookup ("<pair>")); | |
1866 | scm_class_null = scm_variable_ref (scm_c_lookup ("<null>")); | |
1867 | scm_class_string = scm_variable_ref (scm_c_lookup ("<string>")); | |
1868 | scm_class_symbol = scm_variable_ref (scm_c_lookup ("<symbol>")); | |
1869 | scm_class_vector = scm_variable_ref (scm_c_lookup ("<vector>")); | |
1870 | class_foreign = scm_variable_ref (scm_c_lookup ("<foreign>")); | |
1871 | class_hashtable = scm_variable_ref (scm_c_lookup ("<hashtable>")); | |
1872 | class_fluid = scm_variable_ref (scm_c_lookup ("<fluid>")); | |
1873 | class_dynamic_state = scm_variable_ref (scm_c_lookup ("<dynamic-state>")); | |
1874 | class_frame = scm_variable_ref (scm_c_lookup ("<frame>")); | |
1875 | class_vm_cont = scm_variable_ref (scm_c_lookup ("<vm-continuation>")); | |
1876 | class_bytevector = scm_variable_ref (scm_c_lookup ("<bytevector>")); | |
1877 | class_uvec = scm_variable_ref (scm_c_lookup ("<uvec>")); | |
1878 | class_array = scm_variable_ref (scm_c_lookup ("<array>")); | |
1879 | class_bitvector = scm_variable_ref (scm_c_lookup ("<bitvector>")); | |
1880 | scm_class_number = scm_variable_ref (scm_c_lookup ("<number>")); | |
1881 | scm_class_complex = scm_variable_ref (scm_c_lookup ("<complex>")); | |
1882 | scm_class_real = scm_variable_ref (scm_c_lookup ("<real>")); | |
1883 | scm_class_integer = scm_variable_ref (scm_c_lookup ("<integer>")); | |
1884 | scm_class_fraction = scm_variable_ref (scm_c_lookup ("<fraction>")); | |
1885 | scm_class_keyword = scm_variable_ref (scm_c_lookup ("<keyword>")); | |
1886 | scm_class_unknown = scm_variable_ref (scm_c_lookup ("<unknown>")); | |
1887 | scm_class_procedure = scm_variable_ref (scm_c_lookup ("<procedure>")); | |
1888 | scm_class_primitive_generic = scm_variable_ref (scm_c_lookup ("<primitive-generic>")); | |
1889 | scm_class_port = scm_variable_ref (scm_c_lookup ("<port>")); | |
1890 | scm_class_input_port = scm_variable_ref (scm_c_lookup ("<input-port>")); | |
1891 | scm_class_output_port = scm_variable_ref (scm_c_lookup ("<output-port>")); | |
1892 | scm_class_input_output_port = scm_variable_ref (scm_c_lookup ("<input-output-port>")); | |
1893 | ||
82ab5090 AW |
1894 | create_smob_classes (); |
1895 | create_struct_classes (); | |
1896 | create_port_classes (); | |
1897 | ||
1898 | { | |
1899 | SCM name = scm_from_latin1_symbol ("no-applicable-method"); | |
1900 | scm_no_applicable_method = | |
1901 | scm_make (scm_list_3 (scm_class_generic, k_name, name)); | |
1902 | scm_module_define (scm_module_goops, name, scm_no_applicable_method); | |
1903 | } | |
1904 | ||
1905 | return SCM_UNSPECIFIED; | |
1906 | } | |
1907 | #undef FUNC_NAME | |
1908 | ||
398d8ee1 KN |
1909 | SCM_DEFINE (scm_sys_goops_loaded, "%goops-loaded", 0, 0, 0, |
1910 | (), | |
6bcefd15 MG |
1911 | "Announce that GOOPS is loaded and perform initialization\n" |
1912 | "on the C level which depends on the loaded GOOPS modules.") | |
398d8ee1 | 1913 | #define FUNC_NAME s_scm_sys_goops_loaded |
80662eda MD |
1914 | { |
1915 | goops_loaded_p = 1; | |
bef95911 | 1916 | var_slot_unbound = |
f39448c5 | 1917 | scm_module_variable (scm_module_goops, sym_slot_unbound); |
bef95911 | 1918 | var_slot_missing = |
f39448c5 | 1919 | scm_module_variable (scm_module_goops, sym_slot_missing); |
bef95911 | 1920 | var_no_applicable_method = |
f39448c5 | 1921 | scm_module_variable (scm_module_goops, sym_no_applicable_method); |
bef95911 | 1922 | var_change_class = |
f39448c5 | 1923 | scm_module_variable (scm_module_goops, sym_change_class); |
a48d60b1 | 1924 | setup_extended_primitive_generics (); |
80662eda MD |
1925 | return SCM_UNSPECIFIED; |
1926 | } | |
398d8ee1 | 1927 | #undef FUNC_NAME |
80662eda MD |
1928 | |
1929 | SCM scm_module_goops; | |
1930 | ||
6ab19396 AW |
1931 | static void |
1932 | scm_init_goops_builtins (void *unused) | |
80662eda | 1933 | { |
abd28220 | 1934 | scm_module_goops = scm_current_module (); |
80662eda | 1935 | |
80662eda MD |
1936 | goops_rstate = scm_c_make_rstate ("GOOPS", 5); |
1937 | ||
bb764c0e | 1938 | hell = scm_calloc (hell_size * sizeof (*hell)); |
f39448c5 | 1939 | hell_mutex = scm_make_mutex (); |
80662eda | 1940 | |
82ab5090 | 1941 | #include "libguile/goops.x" |
80662eda MD |
1942 | } |
1943 | ||
1944 | void | |
abd28220 | 1945 | scm_init_goops () |
80662eda | 1946 | { |
6ab19396 AW |
1947 | scm_c_register_extension ("libguile-" SCM_EFFECTIVE_VERSION, |
1948 | "scm_init_goops_builtins", scm_init_goops_builtins, | |
1949 | NULL); | |
80662eda | 1950 | } |
23437298 DH |
1951 | |
1952 | /* | |
1953 | Local Variables: | |
1954 | c-file-style: "gnu" | |
1955 | End: | |
1956 | */ |