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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 | 32 | #include "libguile/_scm.h" |
4e047c3e | 33 | #include "libguile/async.h" |
539d5410 | 34 | #include "libguile/chars.h" |
80662eda MD |
35 | #include "libguile/dynwind.h" |
36 | #include "libguile/eval.h" | |
9fdf9fd3 | 37 | #include "libguile/gsubr.h" |
80662eda MD |
38 | #include "libguile/hashtab.h" |
39 | #include "libguile/keywords.h" | |
40 | #include "libguile/macros.h" | |
41 | #include "libguile/modules.h" | |
80662eda MD |
42 | #include "libguile/ports.h" |
43 | #include "libguile/procprop.h" | |
efcebb5b | 44 | #include "libguile/programs.h" |
80662eda MD |
45 | #include "libguile/smob.h" |
46 | #include "libguile/strings.h" | |
47 | #include "libguile/strports.h" | |
48 | #include "libguile/vectors.h" | |
80662eda | 49 | |
ca83b028 | 50 | #include "libguile/validate.h" |
80662eda MD |
51 | #include "libguile/goops.h" |
52 | ||
efcebb5b AW |
53 | /* Port classes */ |
54 | #define SCM_IN_PCLASS_INDEX 0 | |
55 | #define SCM_OUT_PCLASS_INDEX SCM_I_MAX_PORT_TYPE_COUNT | |
56 | #define SCM_INOUT_PCLASS_INDEX (2 * SCM_I_MAX_PORT_TYPE_COUNT) | |
57 | ||
f6088819 AW |
58 | #define SCM_GOOPS_UNBOUND SCM_UNBOUND |
59 | #define SCM_GOOPS_UNBOUNDP(x) (scm_is_eq (x, SCM_GOOPS_UNBOUND)) | |
60 | ||
51fd1cd6 AW |
61 | /* Objects have identity, so references to classes and instances are by |
62 | value, not by reference. Redefinition of a class or modification of | |
63 | an instance causes in-place update; you can think of GOOPS as | |
64 | building in its own indirection, and for that reason referring to | |
65 | GOOPS values by variable reference is unnecessary. | |
bef95911 | 66 | |
51fd1cd6 AW |
67 | References to ordinary procedures is by reference (by variable), |
68 | though, as in the rest of Guile. */ | |
69 | ||
f37bece4 AW |
70 | SCM_KEYWORD (k_name, "name"); |
71 | SCM_KEYWORD (k_setter, "setter"); | |
2025a027 | 72 | SCM_SYMBOL (sym_redefined, "redefined"); |
f37bece4 AW |
73 | SCM_GLOBAL_SYMBOL (scm_sym_args, "args"); |
74 | ||
f6088819 AW |
75 | static int goops_loaded_p = 0; |
76 | ||
51fd1cd6 | 77 | static SCM var_make_standard_class = SCM_BOOL_F; |
bef95911 | 78 | static SCM var_change_class = SCM_BOOL_F; |
e0590e7c | 79 | static SCM var_make = SCM_BOOL_F; |
f37bece4 | 80 | static SCM var_inherit_applicable = SCM_BOOL_F; |
70dd6000 AW |
81 | static SCM var_class_name = SCM_BOOL_F; |
82 | static SCM var_class_direct_supers = SCM_BOOL_F; | |
83 | static SCM var_class_direct_slots = SCM_BOOL_F; | |
84 | static SCM var_class_direct_subclasses = SCM_BOOL_F; | |
85 | static SCM var_class_direct_methods = SCM_BOOL_F; | |
86 | static SCM var_class_precedence_list = SCM_BOOL_F; | |
87 | static SCM var_class_slots = SCM_BOOL_F; | |
bef95911 | 88 | |
48c981c9 AW |
89 | static SCM var_generic_function_methods = SCM_BOOL_F; |
90 | static SCM var_method_generic_function = SCM_BOOL_F; | |
91 | static SCM var_method_specializers = SCM_BOOL_F; | |
92 | static SCM var_method_procedure = SCM_BOOL_F; | |
93 | ||
ade4cf4c AW |
94 | static SCM var_slot_ref_using_class = SCM_BOOL_F; |
95 | static SCM var_slot_set_using_class_x = SCM_BOOL_F; | |
96 | static SCM var_slot_bound_using_class_p = SCM_BOOL_F; | |
97 | static SCM var_slot_exists_using_class_p = SCM_BOOL_F; | |
98 | ||
99 | static SCM var_slot_ref = SCM_BOOL_F; | |
100 | static SCM var_slot_set_x = SCM_BOOL_F; | |
101 | static SCM var_slot_bound_p = SCM_BOOL_F; | |
102 | static SCM var_slot_exists_p = SCM_BOOL_F; | |
103 | ||
539d5410 | 104 | /* These variables are filled in by the object system when loaded. */ |
57898597 AW |
105 | static SCM class_boolean, class_char, class_pair; |
106 | static SCM class_procedure, class_string, class_symbol; | |
107 | static SCM class_primitive_generic; | |
108 | static SCM class_vector, class_null; | |
109 | static SCM class_integer, class_real, class_complex, class_fraction; | |
110 | static SCM class_unknown; | |
111 | static SCM class_top, class_object, class_class; | |
112 | static SCM class_applicable; | |
113 | static SCM class_applicable_struct, class_applicable_struct_with_setter; | |
114 | static SCM class_generic, class_generic_with_setter; | |
115 | static SCM class_accessor; | |
116 | static SCM class_extended_generic, class_extended_generic_with_setter; | |
117 | static SCM class_extended_accessor; | |
118 | static SCM class_method; | |
119 | static SCM class_accessor_method; | |
120 | static SCM class_procedure_class; | |
121 | static SCM class_applicable_struct_class; | |
122 | static SCM class_applicable_struct_with_setter_class; | |
123 | static SCM class_number, class_list; | |
124 | static SCM class_keyword; | |
125 | static SCM class_port, class_input_output_port; | |
126 | static SCM class_input_port, class_output_port; | |
127 | static SCM class_foreign_slot; | |
128 | static SCM class_self, class_protected; | |
129 | static SCM class_hidden, class_opaque, class_read_only; | |
130 | static SCM class_protected_hidden, class_protected_opaque, class_protected_read_only; | |
131 | static SCM class_scm; | |
132 | static SCM class_int, class_float, class_double; | |
80662eda | 133 | |
e2c2a699 | 134 | static SCM class_foreign; |
9ea31741 AW |
135 | static SCM class_hashtable; |
136 | static SCM class_fluid; | |
137 | static SCM class_dynamic_state; | |
6f3b0cc2 | 138 | static SCM class_frame; |
6f3b0cc2 | 139 | static SCM class_vm_cont; |
f826a886 AW |
140 | static SCM class_bytevector; |
141 | static SCM class_uvec; | |
b2637c98 | 142 | static SCM class_array; |
ff1feca9 | 143 | static SCM class_bitvector; |
9ea31741 | 144 | |
f3c6a02c AW |
145 | static SCM vtable_class_map = SCM_BOOL_F; |
146 | ||
63385df2 LC |
147 | /* Port classes. Allocate 3 times the maximum number of port types so that |
148 | input ports, output ports, and in/out ports can be stored at different | |
149 | offsets. See `SCM_IN_PCLASS_INDEX' et al. */ | |
57898597 | 150 | SCM scm_i_port_class[3 * SCM_I_MAX_PORT_TYPE_COUNT]; |
63385df2 LC |
151 | |
152 | /* SMOB classes. */ | |
57898597 | 153 | SCM scm_i_smob_class[SCM_I_MAX_SMOB_TYPE_COUNT]; |
539d5410 | 154 | |
c2aa5d9b AW |
155 | SCM scm_module_goops; |
156 | ||
80662eda MD |
157 | static SCM scm_make_unbound (void); |
158 | static SCM scm_unbound_p (SCM obj); | |
70dd6000 | 159 | static SCM scm_class_p (SCM obj); |
6c7dd9eb AW |
160 | static SCM scm_sys_bless_applicable_struct_vtables_x (SCM applicable, |
161 | SCM setter); | |
4702cbeb | 162 | static SCM scm_sys_make_root_class (SCM layout); |
51fd1cd6 | 163 | static SCM scm_sys_init_layout_x (SCM class, SCM layout); |
07452c83 | 164 | static SCM scm_sys_clear_fields_x (SCM obj); |
82ab5090 | 165 | static SCM scm_sys_goops_early_init (void); |
398d8ee1 | 166 | static SCM scm_sys_goops_loaded (void); |
80662eda | 167 | |
f3c6a02c | 168 | |
60061fe0 AW |
169 | \f |
170 | ||
c2aa5d9b AW |
171 | SCM_DEFINE (scm_sys_make_root_class, "%make-root-class", 1, 0, 0, |
172 | (SCM layout), | |
173 | "") | |
174 | #define FUNC_NAME s_scm_sys_make_root_class | |
175 | { | |
176 | SCM z; | |
177 | ||
178 | z = scm_i_make_vtable_vtable (layout); | |
179 | SCM_SET_CLASS_FLAGS (z, (SCM_CLASSF_GOOPS_OR_VALID | SCM_CLASSF_METACLASS)); | |
180 | ||
181 | return z; | |
182 | } | |
183 | #undef FUNC_NAME | |
184 | ||
185 | SCM_DEFINE (scm_sys_bless_applicable_struct_vtables_x, "%bless-applicable-struct-vtables!", 2, 0, 0, | |
186 | (SCM applicable, SCM setter), | |
187 | "") | |
188 | #define FUNC_NAME s_scm_sys_bless_applicable_struct_vtables_x | |
189 | { | |
190 | SCM_VALIDATE_CLASS (1, applicable); | |
191 | SCM_VALIDATE_CLASS (2, setter); | |
192 | SCM_SET_VTABLE_FLAGS (applicable, SCM_VTABLE_FLAG_APPLICABLE_VTABLE); | |
193 | SCM_SET_VTABLE_FLAGS (setter, SCM_VTABLE_FLAG_SETTER_VTABLE); | |
194 | return SCM_UNSPECIFIED; | |
195 | } | |
196 | #undef FUNC_NAME | |
197 | ||
60061fe0 AW |
198 | SCM |
199 | scm_make_standard_class (SCM meta, SCM name, SCM dsupers, SCM dslots) | |
200 | { | |
201 | return scm_call_4 (scm_variable_ref (var_make_standard_class), | |
202 | meta, name, dsupers, dslots); | |
203 | } | |
204 | ||
205 | SCM_DEFINE (scm_sys_init_layout_x, "%init-layout!", 2, 0, 0, | |
206 | (SCM class, SCM layout), | |
207 | "") | |
208 | #define FUNC_NAME s_scm_sys_init_layout_x | |
209 | { | |
210 | SCM_VALIDATE_INSTANCE (1, class); | |
211 | SCM_ASSERT (!scm_is_symbol (SCM_VTABLE_LAYOUT (class)), class, 1, FUNC_NAME); | |
212 | SCM_VALIDATE_STRING (2, layout); | |
213 | ||
214 | SCM_SET_VTABLE_LAYOUT (class, scm_make_struct_layout (layout)); | |
215 | scm_i_struct_inherit_vtable_magic (SCM_CLASS_OF (class), class); | |
216 | SCM_SET_CLASS_FLAGS (class, SCM_CLASSF_GOOPS_OR_VALID); | |
217 | ||
218 | return SCM_UNSPECIFIED; | |
219 | } | |
220 | #undef FUNC_NAME | |
221 | ||
222 | ||
223 | \f | |
224 | ||
539d5410 MV |
225 | /* This function is used for efficient type dispatch. */ |
226 | SCM_DEFINE (scm_class_of, "class-of", 1, 0, 0, | |
227 | (SCM x), | |
228 | "Return the class of @var{x}.") | |
229 | #define FUNC_NAME s_scm_class_of | |
230 | { | |
231 | switch (SCM_ITAG3 (x)) | |
232 | { | |
233 | case scm_tc3_int_1: | |
234 | case scm_tc3_int_2: | |
57898597 | 235 | return class_integer; |
539d5410 MV |
236 | |
237 | case scm_tc3_imm24: | |
238 | if (SCM_CHARP (x)) | |
57898597 | 239 | return class_char; |
539d5410 | 240 | else if (scm_is_bool (x)) |
57898597 | 241 | return class_boolean; |
539d5410 | 242 | else if (scm_is_null (x)) |
57898597 | 243 | return class_null; |
539d5410 | 244 | else |
57898597 | 245 | return class_unknown; |
539d5410 MV |
246 | |
247 | case scm_tc3_cons: | |
248 | switch (SCM_TYP7 (x)) | |
249 | { | |
250 | case scm_tcs_cons_nimcar: | |
57898597 | 251 | return class_pair; |
539d5410 | 252 | case scm_tc7_symbol: |
57898597 | 253 | return class_symbol; |
539d5410 MV |
254 | case scm_tc7_vector: |
255 | case scm_tc7_wvect: | |
57898597 | 256 | return class_vector; |
5b46a8c2 | 257 | case scm_tc7_pointer: |
e2c2a699 | 258 | return class_foreign; |
c99de5aa | 259 | case scm_tc7_hashtable: |
9ea31741 AW |
260 | return class_hashtable; |
261 | case scm_tc7_fluid: | |
262 | return class_fluid; | |
263 | case scm_tc7_dynamic_state: | |
264 | return class_dynamic_state; | |
6f3b0cc2 AW |
265 | case scm_tc7_frame: |
266 | return class_frame; | |
e2fafeb9 | 267 | case scm_tc7_keyword: |
57898597 | 268 | return class_keyword; |
6f3b0cc2 AW |
269 | case scm_tc7_vm_cont: |
270 | return class_vm_cont; | |
f826a886 AW |
271 | case scm_tc7_bytevector: |
272 | if (SCM_BYTEVECTOR_ELEMENT_TYPE (x) == SCM_ARRAY_ELEMENT_TYPE_VU8) | |
273 | return class_bytevector; | |
274 | else | |
275 | return class_uvec; | |
b2637c98 AW |
276 | case scm_tc7_array: |
277 | return class_array; | |
ff1feca9 AW |
278 | case scm_tc7_bitvector: |
279 | return class_bitvector; | |
539d5410 | 280 | case scm_tc7_string: |
57898597 | 281 | return class_string; |
539d5410 MV |
282 | case scm_tc7_number: |
283 | switch SCM_TYP16 (x) { | |
284 | case scm_tc16_big: | |
57898597 | 285 | return class_integer; |
539d5410 | 286 | case scm_tc16_real: |
57898597 | 287 | return class_real; |
539d5410 | 288 | case scm_tc16_complex: |
57898597 | 289 | return class_complex; |
539d5410 | 290 | case scm_tc16_fraction: |
57898597 | 291 | return class_fraction; |
539d5410 | 292 | } |
e0755cd1 | 293 | case scm_tc7_program: |
b2b33168 AW |
294 | if (SCM_PROGRAM_IS_PRIMITIVE_GENERIC (x) |
295 | && SCM_UNPACK (*SCM_SUBR_GENERIC (x))) | |
57898597 | 296 | return class_primitive_generic; |
fd12a19a | 297 | else |
57898597 | 298 | return class_procedure; |
539d5410 MV |
299 | |
300 | case scm_tc7_smob: | |
301 | { | |
302 | scm_t_bits type = SCM_TYP16 (x); | |
303 | if (type != scm_tc16_port_with_ps) | |
57898597 | 304 | return scm_i_smob_class[SCM_TC2SMOBNUM (type)]; |
539d5410 MV |
305 | x = SCM_PORT_WITH_PS_PORT (x); |
306 | /* fall through to ports */ | |
307 | } | |
308 | case scm_tc7_port: | |
57898597 AW |
309 | return scm_i_port_class[(SCM_WRTNG & SCM_CELL_WORD_0 (x) |
310 | ? (SCM_RDNG & SCM_CELL_WORD_0 (x) | |
311 | ? SCM_INOUT_PCLASS_INDEX | SCM_PTOBNUM (x) | |
312 | : SCM_OUT_PCLASS_INDEX | SCM_PTOBNUM (x)) | |
313 | : SCM_IN_PCLASS_INDEX | SCM_PTOBNUM (x))]; | |
539d5410 MV |
314 | case scm_tcs_struct: |
315 | if (SCM_OBJ_CLASS_FLAGS (x) & SCM_CLASSF_GOOPS_VALID) | |
2025a027 | 316 | /* A GOOPS object with a valid class. */ |
539d5410 MV |
317 | return SCM_CLASS_OF (x); |
318 | else if (SCM_OBJ_CLASS_FLAGS (x) & SCM_CLASSF_GOOPS) | |
2025a027 | 319 | /* A GOOPS object whose class might have been redefined. */ |
539d5410 | 320 | { |
2025a027 AW |
321 | SCM class = SCM_CLASS_OF (x); |
322 | SCM new_class = scm_slot_ref (class, sym_redefined); | |
323 | if (!scm_is_false (new_class)) | |
324 | scm_change_object_class (x, class, new_class); | |
325 | /* Re-load class from instance. */ | |
539d5410 MV |
326 | return SCM_CLASS_OF (x); |
327 | } | |
328 | else | |
f3c6a02c | 329 | return scm_i_define_class_for_vtable (SCM_CLASS_OF (x)); |
539d5410 MV |
330 | default: |
331 | if (scm_is_pair (x)) | |
57898597 | 332 | return class_pair; |
539d5410 | 333 | else |
57898597 | 334 | return class_unknown; |
539d5410 MV |
335 | } |
336 | ||
337 | case scm_tc3_struct: | |
338 | case scm_tc3_tc7_1: | |
339 | case scm_tc3_tc7_2: | |
314b8716 | 340 | /* case scm_tc3_unused: */ |
539d5410 MV |
341 | /* Never reached */ |
342 | break; | |
343 | } | |
57898597 | 344 | return class_unknown; |
539d5410 MV |
345 | } |
346 | #undef FUNC_NAME | |
347 | ||
80662eda | 348 | |
c2aa5d9b | 349 | \f |
80662eda | 350 | |
398d8ee1 KN |
351 | SCM_DEFINE (scm_instance_p, "instance?", 1, 0, 0, |
352 | (SCM obj), | |
6bcefd15 | 353 | "Return @code{#t} if @var{obj} is an instance.") |
398d8ee1 | 354 | #define FUNC_NAME s_scm_instance_p |
80662eda | 355 | { |
7888309b | 356 | return scm_from_bool (SCM_INSTANCEP (obj)); |
80662eda | 357 | } |
398d8ee1 | 358 | #undef FUNC_NAME |
80662eda | 359 | |
70dd6000 AW |
360 | SCM_DEFINE (scm_class_p, "class?", 1, 0, 0, |
361 | (SCM obj), | |
362 | "Return @code{#t} if @var{obj} is a class.") | |
363 | #define FUNC_NAME s_scm_class_p | |
364 | { | |
365 | return scm_from_bool (SCM_CLASSP (obj)); | |
366 | } | |
367 | #undef FUNC_NAME | |
368 | ||
57898597 AW |
369 | int |
370 | scm_is_generic (SCM x) | |
371 | { | |
372 | return SCM_INSTANCEP (x) && SCM_SUBCLASSP (SCM_CLASS_OF (x), class_generic); | |
373 | } | |
374 | ||
375 | int | |
376 | scm_is_method (SCM x) | |
377 | { | |
378 | return SCM_INSTANCEP (x) && SCM_SUBCLASSP (SCM_CLASS_OF (x), class_method); | |
379 | } | |
80662eda | 380 | |
c2aa5d9b AW |
381 | |
382 | \f | |
51fd1cd6 | 383 | |
70dd6000 AW |
384 | SCM |
385 | scm_class_name (SCM obj) | |
80662eda | 386 | { |
70dd6000 | 387 | return scm_call_1 (scm_variable_ref (var_class_name), obj); |
80662eda MD |
388 | } |
389 | ||
70dd6000 AW |
390 | SCM |
391 | scm_class_direct_supers (SCM obj) | |
80662eda | 392 | { |
70dd6000 | 393 | return scm_call_1 (scm_variable_ref (var_class_direct_supers), obj); |
80662eda MD |
394 | } |
395 | ||
70dd6000 AW |
396 | SCM |
397 | scm_class_direct_slots (SCM obj) | |
80662eda | 398 | { |
70dd6000 | 399 | return scm_call_1 (scm_variable_ref (var_class_direct_slots), obj); |
80662eda MD |
400 | } |
401 | ||
70dd6000 AW |
402 | SCM |
403 | scm_class_direct_subclasses (SCM obj) | |
80662eda | 404 | { |
70dd6000 | 405 | return scm_call_1 (scm_variable_ref (var_class_direct_subclasses), obj); |
80662eda MD |
406 | } |
407 | ||
70dd6000 AW |
408 | SCM |
409 | scm_class_direct_methods (SCM obj) | |
80662eda | 410 | { |
70dd6000 | 411 | return scm_call_1 (scm_variable_ref (var_class_direct_methods), obj); |
80662eda MD |
412 | } |
413 | ||
70dd6000 AW |
414 | SCM |
415 | scm_class_precedence_list (SCM obj) | |
80662eda | 416 | { |
70dd6000 | 417 | return scm_call_1 (scm_variable_ref (var_class_precedence_list), obj); |
80662eda MD |
418 | } |
419 | ||
70dd6000 AW |
420 | SCM |
421 | scm_class_slots (SCM obj) | |
80662eda | 422 | { |
70dd6000 | 423 | return scm_call_1 (scm_variable_ref (var_class_slots), obj); |
80662eda MD |
424 | } |
425 | ||
c2aa5d9b AW |
426 | |
427 | \f | |
428 | ||
398d8ee1 | 429 | SCM_DEFINE (scm_generic_function_name, "generic-function-name", 1, 0, 0, |
70dd6000 | 430 | (SCM obj), |
6bcefd15 | 431 | "Return the name of the generic function @var{obj}.") |
398d8ee1 | 432 | #define FUNC_NAME s_scm_generic_function_name |
80662eda | 433 | { |
398d8ee1 | 434 | SCM_VALIDATE_GENERIC (1, obj); |
80662eda MD |
435 | return scm_procedure_property (obj, scm_sym_name); |
436 | } | |
398d8ee1 | 437 | #undef FUNC_NAME |
80662eda | 438 | |
48c981c9 AW |
439 | SCM |
440 | scm_generic_function_methods (SCM obj) | |
80662eda | 441 | { |
48c981c9 | 442 | return scm_call_1 (scm_variable_ref (var_generic_function_methods), obj); |
80662eda MD |
443 | } |
444 | ||
48c981c9 AW |
445 | SCM |
446 | scm_method_generic_function (SCM obj) | |
80662eda | 447 | { |
48c981c9 | 448 | return scm_call_1 (scm_variable_ref (var_method_generic_function), obj); |
80662eda MD |
449 | } |
450 | ||
48c981c9 AW |
451 | SCM |
452 | scm_method_specializers (SCM obj) | |
80662eda | 453 | { |
48c981c9 | 454 | return scm_call_1 (scm_variable_ref (var_method_specializers), obj); |
80662eda MD |
455 | } |
456 | ||
48c981c9 AW |
457 | SCM |
458 | scm_method_procedure (SCM obj) | |
80662eda | 459 | { |
48c981c9 | 460 | return scm_call_1 (scm_variable_ref (var_method_procedure), obj); |
80662eda MD |
461 | } |
462 | ||
c2aa5d9b AW |
463 | |
464 | \f | |
80662eda | 465 | |
398d8ee1 KN |
466 | SCM_DEFINE (scm_make_unbound, "make-unbound", 0, 0, 0, |
467 | (), | |
6bcefd15 | 468 | "Return the unbound value.") |
398d8ee1 | 469 | #define FUNC_NAME s_scm_make_unbound |
80662eda MD |
470 | { |
471 | return SCM_GOOPS_UNBOUND; | |
472 | } | |
398d8ee1 | 473 | #undef FUNC_NAME |
80662eda | 474 | |
398d8ee1 KN |
475 | SCM_DEFINE (scm_unbound_p, "unbound?", 1, 0, 0, |
476 | (SCM obj), | |
6bcefd15 | 477 | "Return @code{#t} if @var{obj} is unbound.") |
398d8ee1 | 478 | #define FUNC_NAME s_scm_unbound_p |
80662eda MD |
479 | { |
480 | return SCM_GOOPS_UNBOUNDP (obj) ? SCM_BOOL_T : SCM_BOOL_F; | |
481 | } | |
398d8ee1 | 482 | #undef FUNC_NAME |
80662eda | 483 | |
80662eda | 484 | |
4d0949ea | 485 | \f |
80662eda | 486 | |
ade4cf4c AW |
487 | SCM |
488 | scm_slot_ref_using_class (SCM class, SCM obj, SCM slot_name) | |
80662eda | 489 | { |
ade4cf4c AW |
490 | return scm_call_3 (scm_variable_ref (var_slot_ref_using_class), |
491 | class, obj, slot_name); | |
80662eda | 492 | } |
80662eda | 493 | |
ade4cf4c AW |
494 | SCM |
495 | scm_slot_set_using_class_x (SCM class, SCM obj, SCM slot_name, SCM value) | |
80662eda | 496 | { |
ade4cf4c AW |
497 | return scm_call_4 (scm_variable_ref (var_slot_set_using_class_x), |
498 | class, obj, slot_name, value); | |
80662eda | 499 | } |
23437298 | 500 | |
ade4cf4c AW |
501 | SCM |
502 | scm_slot_bound_using_class_p (SCM class, SCM obj, SCM slot_name) | |
80662eda | 503 | { |
ade4cf4c AW |
504 | return scm_call_3 (scm_variable_ref (var_slot_bound_using_class_p), |
505 | class, obj, slot_name); | |
80662eda MD |
506 | } |
507 | ||
ade4cf4c AW |
508 | SCM |
509 | scm_slot_exists_using_class_p (SCM class, SCM obj, SCM slot_name) | |
398d8ee1 | 510 | { |
ade4cf4c AW |
511 | return scm_call_3 (scm_variable_ref (var_slot_exists_using_class_p), |
512 | class, obj, slot_name); | |
80662eda | 513 | } |
80662eda | 514 | |
ade4cf4c AW |
515 | SCM |
516 | scm_slot_ref (SCM obj, SCM slot_name) | |
80662eda | 517 | { |
ade4cf4c | 518 | return scm_call_2 (scm_variable_ref (var_slot_ref), obj, slot_name); |
80662eda MD |
519 | } |
520 | ||
ade4cf4c AW |
521 | SCM |
522 | scm_slot_set_x (SCM obj, SCM slot_name, SCM value) | |
80662eda | 523 | { |
ade4cf4c | 524 | return scm_call_3 (scm_variable_ref (var_slot_set_x), obj, slot_name, value); |
80662eda MD |
525 | } |
526 | ||
ade4cf4c AW |
527 | SCM |
528 | scm_slot_bound_p (SCM obj, SCM slot_name) | |
80662eda | 529 | { |
ade4cf4c | 530 | return scm_call_2 (scm_variable_ref (var_slot_bound_p), obj, slot_name); |
80662eda MD |
531 | } |
532 | ||
ade4cf4c AW |
533 | SCM |
534 | scm_slot_exists_p (SCM obj, SCM slot_name) | |
80662eda | 535 | { |
ade4cf4c | 536 | return scm_call_2 (scm_variable_ref (var_slot_exists_p), obj, slot_name); |
80662eda MD |
537 | } |
538 | ||
c2aa5d9b AW |
539 | |
540 | \f | |
541 | ||
07452c83 AW |
542 | SCM_DEFINE (scm_sys_clear_fields_x, "%clear-fields!", 1, 0, 0, |
543 | (SCM obj), | |
544 | "") | |
545 | #define FUNC_NAME s_scm_sys_clear_fields_x | |
80662eda | 546 | { |
e25f3727 | 547 | scm_t_signed_bits n, i; |
07452c83 | 548 | SCM vtable, layout; |
80662eda | 549 | |
07452c83 AW |
550 | SCM_VALIDATE_STRUCT (1, obj); |
551 | vtable = SCM_STRUCT_VTABLE (obj); | |
80662eda | 552 | |
07452c83 AW |
553 | n = SCM_STRUCT_DATA_REF (vtable, scm_vtable_index_size); |
554 | layout = SCM_VTABLE_LAYOUT (vtable); | |
80662eda | 555 | |
07452c83 | 556 | /* Set all SCM-holding slots to the GOOPS unbound value. */ |
b6cf4d02 | 557 | for (i = 0; i < n; i++) |
07452c83 AW |
558 | if (scm_i_symbol_ref (layout, i*2) == 'p') |
559 | SCM_STRUCT_SLOT_SET (obj, i, SCM_GOOPS_UNBOUND); | |
6d77c894 | 560 | |
07452c83 | 561 | return SCM_UNSPECIFIED; |
80662eda | 562 | } |
398d8ee1 | 563 | #undef FUNC_NAME |
80662eda | 564 | |
c2aa5d9b AW |
565 | |
566 | \f | |
80662eda | 567 | |
398d8ee1 KN |
568 | SCM_DEFINE (scm_sys_modify_instance, "%modify-instance", 2, 0, 0, |
569 | (SCM old, SCM new), | |
c2aa5d9b | 570 | "Used by change-class to modify objects in place.") |
398d8ee1 | 571 | #define FUNC_NAME s_scm_sys_modify_instance |
80662eda | 572 | { |
398d8ee1 KN |
573 | SCM_VALIDATE_INSTANCE (1, old); |
574 | SCM_VALIDATE_INSTANCE (2, new); | |
80662eda | 575 | |
6d77c894 | 576 | /* Exchange the data contained in old and new. We exchange rather than |
80662eda MD |
577 | * scratch the old value with new to be correct with GC. |
578 | * See "Class redefinition protocol above". | |
579 | */ | |
9de87eea | 580 | SCM_CRITICAL_SECTION_START; |
80662eda | 581 | { |
32b12f40 KR |
582 | scm_t_bits word0, word1; |
583 | word0 = SCM_CELL_WORD_0 (old); | |
584 | word1 = SCM_CELL_WORD_1 (old); | |
585 | SCM_SET_CELL_WORD_0 (old, SCM_CELL_WORD_0 (new)); | |
586 | SCM_SET_CELL_WORD_1 (old, SCM_CELL_WORD_1 (new)); | |
587 | SCM_SET_CELL_WORD_0 (new, word0); | |
588 | SCM_SET_CELL_WORD_1 (new, word1); | |
80662eda | 589 | } |
9de87eea | 590 | SCM_CRITICAL_SECTION_END; |
80662eda MD |
591 | return SCM_UNSPECIFIED; |
592 | } | |
398d8ee1 | 593 | #undef FUNC_NAME |
80662eda | 594 | |
398d8ee1 KN |
595 | SCM_DEFINE (scm_sys_modify_class, "%modify-class", 2, 0, 0, |
596 | (SCM old, SCM new), | |
597 | "") | |
598 | #define FUNC_NAME s_scm_sys_modify_class | |
80662eda | 599 | { |
398d8ee1 KN |
600 | SCM_VALIDATE_CLASS (1, old); |
601 | SCM_VALIDATE_CLASS (2, new); | |
80662eda | 602 | |
9de87eea | 603 | SCM_CRITICAL_SECTION_START; |
80662eda | 604 | { |
32b12f40 KR |
605 | scm_t_bits word0, word1; |
606 | word0 = SCM_CELL_WORD_0 (old); | |
607 | word1 = SCM_CELL_WORD_1 (old); | |
608 | SCM_SET_CELL_WORD_0 (old, SCM_CELL_WORD_0 (new)); | |
609 | SCM_SET_CELL_WORD_1 (old, SCM_CELL_WORD_1 (new)); | |
b6cf4d02 | 610 | SCM_STRUCT_DATA (old)[scm_vtable_index_self] = SCM_UNPACK (old); |
32b12f40 KR |
611 | SCM_SET_CELL_WORD_0 (new, word0); |
612 | SCM_SET_CELL_WORD_1 (new, word1); | |
b6cf4d02 | 613 | SCM_STRUCT_DATA (new)[scm_vtable_index_self] = SCM_UNPACK (new); |
80662eda | 614 | } |
9de87eea | 615 | SCM_CRITICAL_SECTION_END; |
80662eda MD |
616 | return SCM_UNSPECIFIED; |
617 | } | |
398d8ee1 | 618 | #undef FUNC_NAME |
80662eda | 619 | |
398d8ee1 KN |
620 | SCM_DEFINE (scm_sys_invalidate_class, "%invalidate-class", 1, 0, 0, |
621 | (SCM class), | |
622 | "") | |
623 | #define FUNC_NAME s_scm_sys_invalidate_class | |
80662eda | 624 | { |
398d8ee1 | 625 | SCM_VALIDATE_CLASS (1, class); |
80662eda MD |
626 | SCM_CLEAR_CLASS_FLAGS (class, SCM_CLASSF_GOOPS_VALID); |
627 | return SCM_UNSPECIFIED; | |
628 | } | |
398d8ee1 | 629 | #undef FUNC_NAME |
80662eda MD |
630 | |
631 | /* When instances change class, they finally get a new body, but | |
632 | * before that, they go through purgatory in hell. Odd as it may | |
633 | * seem, this data structure saves us from eternal suffering in | |
634 | * infinite recursions. | |
635 | */ | |
636 | ||
92c2555f | 637 | static scm_t_bits **hell; |
c014a02e ML |
638 | static long n_hell = 1; /* one place for the evil one himself */ |
639 | static long hell_size = 4; | |
2132f0d2 | 640 | static SCM hell_mutex; |
80662eda | 641 | |
c014a02e | 642 | static long |
80662eda MD |
643 | burnin (SCM o) |
644 | { | |
c014a02e | 645 | long i; |
80662eda | 646 | for (i = 1; i < n_hell; ++i) |
6b80d352 | 647 | if (SCM_STRUCT_DATA (o) == hell[i]) |
80662eda MD |
648 | return i; |
649 | return 0; | |
650 | } | |
651 | ||
652 | static void | |
653 | go_to_hell (void *o) | |
654 | { | |
b5df9cda | 655 | SCM obj = *(SCM*)o; |
2132f0d2 | 656 | scm_lock_mutex (hell_mutex); |
51ef99f7 | 657 | if (n_hell >= hell_size) |
80662eda | 658 | { |
51ef99f7 | 659 | hell_size *= 2; |
408bcd99 | 660 | hell = scm_realloc (hell, hell_size * sizeof(*hell)); |
80662eda | 661 | } |
6b80d352 | 662 | hell[n_hell++] = SCM_STRUCT_DATA (obj); |
2132f0d2 | 663 | scm_unlock_mutex (hell_mutex); |
80662eda MD |
664 | } |
665 | ||
666 | static void | |
667 | go_to_heaven (void *o) | |
668 | { | |
b5df9cda | 669 | SCM obj = *(SCM*)o; |
2132f0d2 | 670 | scm_lock_mutex (hell_mutex); |
b5df9cda | 671 | hell[burnin (obj)] = hell[--n_hell]; |
2132f0d2 | 672 | scm_unlock_mutex (hell_mutex); |
80662eda MD |
673 | } |
674 | ||
6b80d352 | 675 | |
80662eda | 676 | static SCM |
b5df9cda | 677 | purgatory (SCM obj, SCM new_class) |
80662eda | 678 | { |
b5df9cda | 679 | return scm_call_2 (SCM_VARIABLE_REF (var_change_class), obj, new_class); |
80662eda MD |
680 | } |
681 | ||
38d8927c MD |
682 | /* This function calls the generic function change-class for all |
683 | * instances which aren't currently undergoing class change. | |
684 | */ | |
685 | ||
80662eda | 686 | void |
e81d98ec | 687 | scm_change_object_class (SCM obj, SCM old_class SCM_UNUSED, SCM new_class) |
80662eda MD |
688 | { |
689 | if (!burnin (obj)) | |
b5df9cda AW |
690 | { |
691 | scm_dynwind_begin (SCM_F_DYNWIND_REWINDABLE); | |
692 | scm_dynwind_rewind_handler (go_to_hell, &obj, SCM_F_WIND_EXPLICITLY); | |
693 | scm_dynwind_unwind_handler (go_to_heaven, &obj, SCM_F_WIND_EXPLICITLY); | |
694 | purgatory (obj, new_class); | |
695 | scm_dynwind_end (); | |
696 | } | |
80662eda MD |
697 | } |
698 | ||
c2aa5d9b AW |
699 | |
700 | \f | |
701 | ||
702 | /* Primitive generics: primitives that can dispatch to generics if their | |
703 | arguments fail to apply. */ | |
80662eda | 704 | |
398d8ee1 KN |
705 | SCM_DEFINE (scm_generic_capability_p, "generic-capability?", 1, 0, 0, |
706 | (SCM proc), | |
707 | "") | |
708 | #define FUNC_NAME s_scm_generic_capability_p | |
80662eda | 709 | { |
7888309b | 710 | SCM_ASSERT (scm_is_true (scm_procedure_p (proc)), |
398d8ee1 | 711 | proc, SCM_ARG1, FUNC_NAME); |
9fdf9fd3 | 712 | return (SCM_PRIMITIVE_GENERIC_P (proc) ? SCM_BOOL_T : SCM_BOOL_F); |
80662eda | 713 | } |
398d8ee1 | 714 | #undef FUNC_NAME |
80662eda | 715 | |
398d8ee1 KN |
716 | SCM_DEFINE (scm_enable_primitive_generic_x, "enable-primitive-generic!", 0, 0, 1, |
717 | (SCM subrs), | |
718 | "") | |
719 | #define FUNC_NAME s_scm_enable_primitive_generic_x | |
80662eda | 720 | { |
6b80d352 | 721 | SCM_VALIDATE_REST_ARGUMENT (subrs); |
d2e53ed6 | 722 | while (!scm_is_null (subrs)) |
80662eda MD |
723 | { |
724 | SCM subr = SCM_CAR (subrs); | |
9fdf9fd3 | 725 | SCM_ASSERT (SCM_PRIMITIVE_GENERIC_P (subr), subr, SCM_ARGn, FUNC_NAME); |
52fd9639 | 726 | SCM_SET_SUBR_GENERIC (subr, |
57898597 | 727 | scm_make (scm_list_3 (class_generic, |
52fd9639 AW |
728 | k_name, |
729 | SCM_SUBR_NAME (subr)))); | |
80662eda MD |
730 | subrs = SCM_CDR (subrs); |
731 | } | |
732 | return SCM_UNSPECIFIED; | |
733 | } | |
398d8ee1 | 734 | #undef FUNC_NAME |
80662eda | 735 | |
9f63ce02 AW |
736 | SCM_DEFINE (scm_set_primitive_generic_x, "set-primitive-generic!", 2, 0, 0, |
737 | (SCM subr, SCM generic), | |
738 | "") | |
739 | #define FUNC_NAME s_scm_set_primitive_generic_x | |
740 | { | |
9fdf9fd3 | 741 | SCM_ASSERT (SCM_PRIMITIVE_GENERIC_P (subr), subr, SCM_ARG1, FUNC_NAME); |
2b7692bc | 742 | SCM_ASSERT (SCM_GENERICP (generic), generic, SCM_ARG2, FUNC_NAME); |
52fd9639 | 743 | SCM_SET_SUBR_GENERIC (subr, generic); |
9f63ce02 AW |
744 | return SCM_UNSPECIFIED; |
745 | } | |
746 | #undef FUNC_NAME | |
747 | ||
398d8ee1 KN |
748 | SCM_DEFINE (scm_primitive_generic_generic, "primitive-generic-generic", 1, 0, 0, |
749 | (SCM subr), | |
750 | "") | |
751 | #define FUNC_NAME s_scm_primitive_generic_generic | |
80662eda | 752 | { |
9fdf9fd3 | 753 | if (SCM_PRIMITIVE_GENERIC_P (subr)) |
80662eda | 754 | { |
b2b33168 | 755 | if (!SCM_UNPACK (*SCM_SUBR_GENERIC (subr))) |
a48d60b1 MD |
756 | scm_enable_primitive_generic_x (scm_list_1 (subr)); |
757 | return *SCM_SUBR_GENERIC (subr); | |
80662eda | 758 | } |
db4b4ca6 | 759 | SCM_WRONG_TYPE_ARG (SCM_ARG1, subr); |
80662eda | 760 | } |
398d8ee1 | 761 | #undef FUNC_NAME |
80662eda | 762 | |
fa075d40 AW |
763 | SCM |
764 | scm_wta_dispatch_0 (SCM gf, const char *subr) | |
765 | { | |
766 | if (!SCM_UNPACK (gf)) | |
767 | scm_error_num_args_subr (subr); | |
768 | ||
769 | return scm_call_0 (gf); | |
770 | } | |
771 | ||
772 | SCM | |
773 | scm_wta_dispatch_1 (SCM gf, SCM a1, int pos, const char *subr) | |
774 | { | |
775 | if (!SCM_UNPACK (gf)) | |
776 | scm_wrong_type_arg (subr, pos, a1); | |
777 | ||
778 | return scm_call_1 (gf, a1); | |
779 | } | |
780 | ||
781 | SCM | |
782 | scm_wta_dispatch_2 (SCM gf, SCM a1, SCM a2, int pos, const char *subr) | |
783 | { | |
784 | if (!SCM_UNPACK (gf)) | |
785 | scm_wrong_type_arg (subr, pos, (pos == SCM_ARG1) ? a1 : a2); | |
786 | ||
787 | return scm_call_2 (gf, a1, a2); | |
788 | } | |
789 | ||
790 | SCM | |
791 | scm_wta_dispatch_n (SCM gf, SCM args, int pos, const char *subr) | |
792 | { | |
793 | if (!SCM_UNPACK (gf)) | |
794 | scm_wrong_type_arg (subr, pos, scm_list_ref (args, scm_from_int (pos))); | |
795 | ||
796 | return scm_apply_0 (gf, args); | |
797 | } | |
798 | ||
c2aa5d9b AW |
799 | |
800 | \f | |
80662eda | 801 | |
cb3ea03d AW |
802 | SCM |
803 | scm_make (SCM args) | |
80662eda | 804 | { |
e0590e7c | 805 | return scm_apply_0 (scm_variable_ref (var_make), args); |
80662eda MD |
806 | } |
807 | ||
80662eda | 808 | |
c2aa5d9b AW |
809 | \f |
810 | ||
811 | /* SMOB, struct, and port classes. */ | |
80662eda MD |
812 | |
813 | static SCM | |
2e0b6934 | 814 | make_class_name (const char *prefix, const char *type_name, const char *suffix) |
80662eda | 815 | { |
2e0b6934 AW |
816 | if (!type_name) |
817 | type_name = ""; | |
818 | return scm_string_to_symbol (scm_string_append | |
819 | (scm_list_3 (scm_from_utf8_string (prefix), | |
820 | scm_from_utf8_string (type_name), | |
821 | scm_from_utf8_string (suffix)))); | |
80662eda MD |
822 | } |
823 | ||
824 | SCM | |
da0e6c2b | 825 | scm_make_extended_class (char const *type_name, int applicablep) |
80662eda | 826 | { |
2e0b6934 AW |
827 | SCM name, meta, supers; |
828 | ||
829 | name = make_class_name ("<", type_name, ">"); | |
830 | meta = class_class; | |
831 | ||
832 | if (applicablep) | |
833 | supers = scm_list_1 (class_applicable); | |
834 | else | |
835 | supers = scm_list_1 (class_top); | |
836 | ||
837 | return scm_make_standard_class (meta, name, supers, SCM_EOL); | |
74b6d6e4 MD |
838 | } |
839 | ||
840 | void | |
841 | scm_i_inherit_applicable (SCM c) | |
842 | { | |
f37bece4 | 843 | scm_call_1 (scm_variable_ref (var_inherit_applicable), c); |
80662eda MD |
844 | } |
845 | ||
846 | static void | |
847 | create_smob_classes (void) | |
848 | { | |
c014a02e | 849 | long i; |
80662eda | 850 | |
c891a40e | 851 | for (i = 0; i < SCM_I_MAX_SMOB_TYPE_COUNT; ++i) |
57898597 | 852 | scm_i_smob_class[i] = SCM_BOOL_F; |
80662eda | 853 | |
80662eda | 854 | for (i = 0; i < scm_numsmob; ++i) |
57898597 AW |
855 | if (scm_is_false (scm_i_smob_class[i])) |
856 | scm_i_smob_class[i] = scm_make_extended_class (SCM_SMOBNAME (i), | |
857 | scm_smobs[i].apply != 0); | |
80662eda MD |
858 | } |
859 | ||
860 | void | |
c014a02e | 861 | scm_make_port_classes (long ptobnum, char *type_name) |
80662eda | 862 | { |
2e0b6934 AW |
863 | SCM name, meta, super, supers; |
864 | ||
865 | meta = class_class; | |
866 | ||
867 | name = make_class_name ("<", type_name, "-port>"); | |
868 | supers = scm_list_1 (class_port); | |
869 | super = scm_make_standard_class (meta, name, supers, SCM_EOL); | |
870 | ||
871 | name = make_class_name ("<", type_name, "-input-port>"); | |
872 | supers = scm_list_2 (super, class_input_port); | |
57898597 | 873 | scm_i_port_class[SCM_IN_PCLASS_INDEX + ptobnum] |
2e0b6934 AW |
874 | = scm_make_standard_class (meta, name, supers, SCM_EOL); |
875 | ||
876 | name = make_class_name ("<", type_name, "-output-port>"); | |
877 | supers = scm_list_2 (super, class_output_port); | |
57898597 | 878 | scm_i_port_class[SCM_OUT_PCLASS_INDEX + ptobnum] |
2e0b6934 AW |
879 | = scm_make_standard_class (meta, name, supers, SCM_EOL); |
880 | ||
881 | name = make_class_name ("<", type_name, "-input-output-port>"); | |
882 | supers = scm_list_2 (super, class_input_output_port); | |
57898597 | 883 | scm_i_port_class[SCM_INOUT_PCLASS_INDEX + ptobnum] |
2e0b6934 | 884 | = scm_make_standard_class (meta, name, supers, SCM_EOL); |
80662eda MD |
885 | } |
886 | ||
887 | static void | |
888 | create_port_classes (void) | |
889 | { | |
c014a02e | 890 | long i; |
80662eda | 891 | |
62bd5d66 | 892 | for (i = scm_c_num_port_types () - 1; i >= 0; i--) |
80662eda MD |
893 | scm_make_port_classes (i, SCM_PTOBNAME (i)); |
894 | } | |
895 | ||
6c7dd9eb AW |
896 | SCM |
897 | scm_i_define_class_for_vtable (SCM vtable) | |
898 | { | |
899 | SCM class; | |
900 | ||
901 | scm_i_pthread_mutex_lock (&scm_i_misc_mutex); | |
902 | if (scm_is_false (vtable_class_map)) | |
903 | vtable_class_map = scm_c_make_weak_table (0, SCM_WEAK_TABLE_KIND_KEY); | |
904 | scm_i_pthread_mutex_unlock (&scm_i_misc_mutex); | |
905 | ||
906 | if (scm_is_false (scm_struct_vtable_p (vtable))) | |
907 | abort (); | |
908 | ||
909 | class = scm_weak_table_refq (vtable_class_map, vtable, SCM_BOOL_F); | |
910 | ||
911 | if (scm_is_false (class)) | |
912 | { | |
57898597 | 913 | if (SCM_UNPACK (class_class)) |
6c7dd9eb AW |
914 | { |
915 | SCM name, meta, supers; | |
916 | ||
917 | name = SCM_VTABLE_NAME (vtable); | |
918 | if (scm_is_symbol (name)) | |
919 | name = scm_string_to_symbol | |
920 | (scm_string_append | |
921 | (scm_list_3 (scm_from_latin1_string ("<"), | |
922 | scm_symbol_to_string (name), | |
923 | scm_from_latin1_string (">")))); | |
924 | else | |
925 | name = scm_from_latin1_symbol ("<>"); | |
926 | ||
927 | if (SCM_STRUCT_VTABLE_FLAG_IS_SET (vtable, SCM_VTABLE_FLAG_SETTER)) | |
928 | { | |
57898597 AW |
929 | meta = class_applicable_struct_with_setter_class; |
930 | supers = scm_list_1 (class_applicable_struct_with_setter); | |
6c7dd9eb AW |
931 | } |
932 | else if (SCM_STRUCT_VTABLE_FLAG_IS_SET (vtable, | |
933 | SCM_VTABLE_FLAG_APPLICABLE)) | |
934 | { | |
57898597 AW |
935 | meta = class_applicable_struct_class; |
936 | supers = scm_list_1 (class_applicable_struct); | |
6c7dd9eb AW |
937 | } |
938 | else | |
939 | { | |
57898597 AW |
940 | meta = class_class; |
941 | supers = scm_list_1 (class_top); | |
6c7dd9eb AW |
942 | } |
943 | ||
944 | return scm_make_standard_class (meta, name, supers, SCM_EOL); | |
945 | } | |
946 | else | |
947 | /* `create_struct_classes' will fill this in later. */ | |
948 | class = SCM_BOOL_F; | |
949 | ||
950 | /* Don't worry about races. This only happens when creating a | |
951 | vtable, which happens by definition in one thread. */ | |
952 | scm_weak_table_putq_x (vtable_class_map, vtable, class); | |
953 | } | |
954 | ||
955 | return class; | |
956 | } | |
957 | ||
80662eda | 958 | static SCM |
74b6d6e4 MD |
959 | make_struct_class (void *closure SCM_UNUSED, |
960 | SCM vtable, SCM data, SCM prev SCM_UNUSED) | |
80662eda | 961 | { |
f3c6a02c AW |
962 | if (scm_is_false (data)) |
963 | scm_i_define_class_for_vtable (vtable); | |
80662eda MD |
964 | return SCM_UNSPECIFIED; |
965 | } | |
966 | ||
967 | static void | |
968 | create_struct_classes (void) | |
969 | { | |
ea742d29 | 970 | /* FIXME: take the vtable_class_map while initializing goops? */ |
f3c6a02c AW |
971 | scm_internal_hash_fold (make_struct_class, 0, SCM_BOOL_F, |
972 | vtable_class_map); | |
80662eda MD |
973 | } |
974 | ||
c2aa5d9b AW |
975 | |
976 | \f | |
80662eda MD |
977 | |
978 | void | |
979 | scm_load_goops () | |
980 | { | |
981 | if (!goops_loaded_p) | |
abd28220 | 982 | scm_c_resolve_module ("oop goops"); |
80662eda MD |
983 | } |
984 | ||
80662eda MD |
985 | SCM |
986 | scm_ensure_accessor (SCM name) | |
987 | { | |
3f48638c AW |
988 | SCM var, gf; |
989 | ||
990 | var = scm_module_variable (scm_current_module (), name); | |
991 | if (SCM_VARIABLEP (var) && !SCM_UNBNDP (SCM_VARIABLE_REF (var))) | |
992 | gf = SCM_VARIABLE_REF (var); | |
993 | else | |
994 | gf = SCM_BOOL_F; | |
995 | ||
57898597 | 996 | if (!SCM_IS_A_P (gf, class_accessor)) |
80662eda | 997 | { |
57898597 AW |
998 | gf = scm_make (scm_list_3 (class_generic, k_name, name)); |
999 | gf = scm_make (scm_list_5 (class_accessor, | |
1afff620 | 1000 | k_name, name, k_setter, gf)); |
80662eda | 1001 | } |
3f48638c | 1002 | |
80662eda MD |
1003 | return gf; |
1004 | } | |
1005 | ||
80662eda | 1006 | |
c2aa5d9b | 1007 | \f |
51fd1cd6 | 1008 | |
82ab5090 AW |
1009 | SCM_DEFINE (scm_sys_goops_early_init, "%goops-early-init", 0, 0, 0, |
1010 | (), | |
1011 | "") | |
1012 | #define FUNC_NAME s_scm_sys_goops_early_init | |
1013 | { | |
51fd1cd6 | 1014 | var_make_standard_class = scm_c_lookup ("make-standard-class"); |
e0590e7c | 1015 | var_make = scm_c_lookup ("make"); |
f37bece4 | 1016 | var_inherit_applicable = scm_c_lookup ("inherit-applicable!"); |
51fd1cd6 | 1017 | |
2025a027 AW |
1018 | /* For SCM_SUBCLASSP. */ |
1019 | var_class_precedence_list = scm_c_lookup ("class-precedence-list"); | |
1020 | ||
ade4cf4c AW |
1021 | var_slot_ref_using_class = scm_c_lookup ("slot-ref-using-class"); |
1022 | var_slot_set_using_class_x = scm_c_lookup ("slot-set-using-class!"); | |
1023 | var_slot_bound_using_class_p = scm_c_lookup ("slot-bound-using-class?"); | |
1024 | var_slot_exists_using_class_p = scm_c_lookup ("slot-exists-using-class?"); | |
1025 | ||
1026 | var_slot_ref = scm_c_lookup ("slot-ref"); | |
1027 | var_slot_set_x = scm_c_lookup ("slot-set!"); | |
1028 | var_slot_bound_p = scm_c_lookup ("slot-bound?"); | |
1029 | var_slot_exists_p = scm_c_lookup ("slot-exists?"); | |
1030 | ||
57898597 AW |
1031 | class_class = scm_variable_ref (scm_c_lookup ("<class>")); |
1032 | class_top = scm_variable_ref (scm_c_lookup ("<top>")); | |
1033 | class_object = scm_variable_ref (scm_c_lookup ("<object>")); | |
1034 | ||
1035 | class_foreign_slot = scm_variable_ref (scm_c_lookup ("<foreign-slot>")); | |
1036 | class_protected = scm_variable_ref (scm_c_lookup ("<protected-slot>")); | |
1037 | class_hidden = scm_variable_ref (scm_c_lookup ("<hidden-slot>")); | |
1038 | class_opaque = scm_variable_ref (scm_c_lookup ("<opaque-slot>")); | |
1039 | class_read_only = scm_variable_ref (scm_c_lookup ("<read-only-slot>")); | |
1040 | class_self = scm_variable_ref (scm_c_lookup ("<self-slot>")); | |
1041 | class_protected_opaque = scm_variable_ref (scm_c_lookup ("<protected-opaque-slot>")); | |
1042 | class_protected_hidden = scm_variable_ref (scm_c_lookup ("<protected-hidden-slot>")); | |
1043 | class_protected_read_only = scm_variable_ref (scm_c_lookup ("<protected-read-only-slot>")); | |
1044 | class_scm = scm_variable_ref (scm_c_lookup ("<scm-slot>")); | |
1045 | class_int = scm_variable_ref (scm_c_lookup ("<int-slot>")); | |
1046 | class_float = scm_variable_ref (scm_c_lookup ("<float-slot>")); | |
1047 | class_double = scm_variable_ref (scm_c_lookup ("<double-slot>")); | |
1048 | ||
1049 | /* Applicables */ | |
1050 | class_procedure_class = scm_variable_ref (scm_c_lookup ("<procedure-class>")); | |
1051 | class_applicable_struct_class = scm_variable_ref (scm_c_lookup ("<applicable-struct-class>")); | |
1052 | class_applicable_struct_with_setter_class = | |
6c7dd9eb | 1053 | scm_variable_ref (scm_c_lookup ("<applicable-struct-with-setter-class>")); |
51fd1cd6 | 1054 | |
57898597 AW |
1055 | class_method = scm_variable_ref (scm_c_lookup ("<method>")); |
1056 | class_accessor_method = scm_variable_ref (scm_c_lookup ("<accessor-method>")); | |
1057 | class_applicable = scm_variable_ref (scm_c_lookup ("<applicable>")); | |
1058 | class_applicable_struct = scm_variable_ref (scm_c_lookup ("<applicable-struct>")); | |
1059 | class_applicable_struct_with_setter = scm_variable_ref (scm_c_lookup ("<applicable-struct-with-setter>")); | |
1060 | class_generic = scm_variable_ref (scm_c_lookup ("<generic>")); | |
1061 | class_extended_generic = scm_variable_ref (scm_c_lookup ("<extended-generic>")); | |
1062 | class_generic_with_setter = scm_variable_ref (scm_c_lookup ("<generic-with-setter>")); | |
1063 | class_accessor = scm_variable_ref (scm_c_lookup ("<accessor>")); | |
1064 | class_extended_generic_with_setter = scm_variable_ref (scm_c_lookup ("<extended-generic-with-setter>")); | |
1065 | class_extended_accessor = scm_variable_ref (scm_c_lookup ("<extended-accessor>")); | |
51fd1cd6 AW |
1066 | |
1067 | /* Primitive types classes */ | |
57898597 AW |
1068 | class_boolean = scm_variable_ref (scm_c_lookup ("<boolean>")); |
1069 | class_char = scm_variable_ref (scm_c_lookup ("<char>")); | |
1070 | class_list = scm_variable_ref (scm_c_lookup ("<list>")); | |
1071 | class_pair = scm_variable_ref (scm_c_lookup ("<pair>")); | |
1072 | class_null = scm_variable_ref (scm_c_lookup ("<null>")); | |
1073 | class_string = scm_variable_ref (scm_c_lookup ("<string>")); | |
1074 | class_symbol = scm_variable_ref (scm_c_lookup ("<symbol>")); | |
1075 | class_vector = scm_variable_ref (scm_c_lookup ("<vector>")); | |
51fd1cd6 AW |
1076 | class_foreign = scm_variable_ref (scm_c_lookup ("<foreign>")); |
1077 | class_hashtable = scm_variable_ref (scm_c_lookup ("<hashtable>")); | |
1078 | class_fluid = scm_variable_ref (scm_c_lookup ("<fluid>")); | |
1079 | class_dynamic_state = scm_variable_ref (scm_c_lookup ("<dynamic-state>")); | |
1080 | class_frame = scm_variable_ref (scm_c_lookup ("<frame>")); | |
1081 | class_vm_cont = scm_variable_ref (scm_c_lookup ("<vm-continuation>")); | |
1082 | class_bytevector = scm_variable_ref (scm_c_lookup ("<bytevector>")); | |
1083 | class_uvec = scm_variable_ref (scm_c_lookup ("<uvec>")); | |
1084 | class_array = scm_variable_ref (scm_c_lookup ("<array>")); | |
1085 | class_bitvector = scm_variable_ref (scm_c_lookup ("<bitvector>")); | |
57898597 AW |
1086 | class_number = scm_variable_ref (scm_c_lookup ("<number>")); |
1087 | class_complex = scm_variable_ref (scm_c_lookup ("<complex>")); | |
1088 | class_real = scm_variable_ref (scm_c_lookup ("<real>")); | |
1089 | class_integer = scm_variable_ref (scm_c_lookup ("<integer>")); | |
1090 | class_fraction = scm_variable_ref (scm_c_lookup ("<fraction>")); | |
1091 | class_keyword = scm_variable_ref (scm_c_lookup ("<keyword>")); | |
1092 | class_unknown = scm_variable_ref (scm_c_lookup ("<unknown>")); | |
1093 | class_procedure = scm_variable_ref (scm_c_lookup ("<procedure>")); | |
1094 | class_primitive_generic = scm_variable_ref (scm_c_lookup ("<primitive-generic>")); | |
1095 | class_port = scm_variable_ref (scm_c_lookup ("<port>")); | |
1096 | class_input_port = scm_variable_ref (scm_c_lookup ("<input-port>")); | |
1097 | class_output_port = scm_variable_ref (scm_c_lookup ("<output-port>")); | |
1098 | class_input_output_port = scm_variable_ref (scm_c_lookup ("<input-output-port>")); | |
51fd1cd6 | 1099 | |
82ab5090 AW |
1100 | create_smob_classes (); |
1101 | create_struct_classes (); | |
1102 | create_port_classes (); | |
1103 | ||
82ab5090 AW |
1104 | return SCM_UNSPECIFIED; |
1105 | } | |
1106 | #undef FUNC_NAME | |
1107 | ||
398d8ee1 KN |
1108 | SCM_DEFINE (scm_sys_goops_loaded, "%goops-loaded", 0, 0, 0, |
1109 | (), | |
6bcefd15 MG |
1110 | "Announce that GOOPS is loaded and perform initialization\n" |
1111 | "on the C level which depends on the loaded GOOPS modules.") | |
398d8ee1 | 1112 | #define FUNC_NAME s_scm_sys_goops_loaded |
80662eda MD |
1113 | { |
1114 | goops_loaded_p = 1; | |
48c981c9 AW |
1115 | var_class_name = scm_c_lookup ("class-name"); |
1116 | var_class_direct_supers = scm_c_lookup ("class-direct-supers"); | |
1117 | var_class_direct_slots = scm_c_lookup ("class-direct-slots"); | |
1118 | var_class_direct_subclasses = scm_c_lookup ("class-direct-subclasses"); | |
1119 | var_class_direct_methods = scm_c_lookup ("class-direct-methods"); | |
48c981c9 AW |
1120 | var_class_slots = scm_c_lookup ("class-slots"); |
1121 | ||
1122 | var_generic_function_methods = scm_c_lookup ("generic-function-methods"); | |
1123 | var_method_generic_function = scm_c_lookup ("method-generic-function"); | |
1124 | var_method_specializers = scm_c_lookup ("method-specializers"); | |
1125 | var_method_procedure = scm_c_lookup ("method-procedure"); | |
1126 | ||
5a6165db | 1127 | var_change_class = scm_c_lookup ("change-class"); |
623559f3 AW |
1128 | |
1129 | #if (SCM_ENABLE_DEPRECATED == 1) | |
1130 | scm_init_deprecated_goops (); | |
1131 | #endif | |
1132 | ||
80662eda MD |
1133 | return SCM_UNSPECIFIED; |
1134 | } | |
398d8ee1 | 1135 | #undef FUNC_NAME |
80662eda | 1136 | |
6ab19396 AW |
1137 | static void |
1138 | scm_init_goops_builtins (void *unused) | |
80662eda | 1139 | { |
abd28220 | 1140 | scm_module_goops = scm_current_module (); |
80662eda | 1141 | |
bb764c0e | 1142 | hell = scm_calloc (hell_size * sizeof (*hell)); |
f39448c5 | 1143 | hell_mutex = scm_make_mutex (); |
80662eda | 1144 | |
82ab5090 | 1145 | #include "libguile/goops.x" |
80662eda MD |
1146 | } |
1147 | ||
1148 | void | |
abd28220 | 1149 | scm_init_goops () |
80662eda | 1150 | { |
6ab19396 AW |
1151 | scm_c_register_extension ("libguile-" SCM_EFFECTIVE_VERSION, |
1152 | "scm_init_goops_builtins", scm_init_goops_builtins, | |
1153 | NULL); | |
80662eda | 1154 | } |
23437298 DH |
1155 | |
1156 | /* | |
1157 | Local Variables: | |
1158 | c-file-style: "gnu" | |
1159 | End: | |
1160 | */ |