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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 | |
80662eda MD |
155 | static SCM scm_make_unbound (void); |
156 | static SCM scm_unbound_p (SCM obj); | |
70dd6000 | 157 | static SCM scm_class_p (SCM obj); |
6c7dd9eb AW |
158 | static SCM scm_sys_bless_applicable_struct_vtables_x (SCM applicable, |
159 | SCM setter); | |
4702cbeb | 160 | static SCM scm_sys_make_root_class (SCM layout); |
51fd1cd6 | 161 | static SCM scm_sys_init_layout_x (SCM class, SCM layout); |
07452c83 | 162 | static SCM scm_sys_clear_fields_x (SCM obj); |
82ab5090 | 163 | static SCM scm_sys_goops_early_init (void); |
398d8ee1 | 164 | static SCM scm_sys_goops_loaded (void); |
80662eda | 165 | |
f3c6a02c | 166 | |
539d5410 MV |
167 | /* This function is used for efficient type dispatch. */ |
168 | SCM_DEFINE (scm_class_of, "class-of", 1, 0, 0, | |
169 | (SCM x), | |
170 | "Return the class of @var{x}.") | |
171 | #define FUNC_NAME s_scm_class_of | |
172 | { | |
173 | switch (SCM_ITAG3 (x)) | |
174 | { | |
175 | case scm_tc3_int_1: | |
176 | case scm_tc3_int_2: | |
57898597 | 177 | return class_integer; |
539d5410 MV |
178 | |
179 | case scm_tc3_imm24: | |
180 | if (SCM_CHARP (x)) | |
57898597 | 181 | return class_char; |
539d5410 | 182 | else if (scm_is_bool (x)) |
57898597 | 183 | return class_boolean; |
539d5410 | 184 | else if (scm_is_null (x)) |
57898597 | 185 | return class_null; |
539d5410 | 186 | else |
57898597 | 187 | return class_unknown; |
539d5410 MV |
188 | |
189 | case scm_tc3_cons: | |
190 | switch (SCM_TYP7 (x)) | |
191 | { | |
192 | case scm_tcs_cons_nimcar: | |
57898597 | 193 | return class_pair; |
539d5410 | 194 | case scm_tc7_symbol: |
57898597 | 195 | return class_symbol; |
539d5410 MV |
196 | case scm_tc7_vector: |
197 | case scm_tc7_wvect: | |
57898597 | 198 | return class_vector; |
5b46a8c2 | 199 | case scm_tc7_pointer: |
e2c2a699 | 200 | return class_foreign; |
c99de5aa | 201 | case scm_tc7_hashtable: |
9ea31741 AW |
202 | return class_hashtable; |
203 | case scm_tc7_fluid: | |
204 | return class_fluid; | |
205 | case scm_tc7_dynamic_state: | |
206 | return class_dynamic_state; | |
6f3b0cc2 AW |
207 | case scm_tc7_frame: |
208 | return class_frame; | |
e2fafeb9 | 209 | case scm_tc7_keyword: |
57898597 | 210 | return class_keyword; |
6f3b0cc2 AW |
211 | case scm_tc7_vm_cont: |
212 | return class_vm_cont; | |
f826a886 AW |
213 | case scm_tc7_bytevector: |
214 | if (SCM_BYTEVECTOR_ELEMENT_TYPE (x) == SCM_ARRAY_ELEMENT_TYPE_VU8) | |
215 | return class_bytevector; | |
216 | else | |
217 | return class_uvec; | |
b2637c98 AW |
218 | case scm_tc7_array: |
219 | return class_array; | |
ff1feca9 AW |
220 | case scm_tc7_bitvector: |
221 | return class_bitvector; | |
539d5410 | 222 | case scm_tc7_string: |
57898597 | 223 | return class_string; |
539d5410 MV |
224 | case scm_tc7_number: |
225 | switch SCM_TYP16 (x) { | |
226 | case scm_tc16_big: | |
57898597 | 227 | return class_integer; |
539d5410 | 228 | case scm_tc16_real: |
57898597 | 229 | return class_real; |
539d5410 | 230 | case scm_tc16_complex: |
57898597 | 231 | return class_complex; |
539d5410 | 232 | case scm_tc16_fraction: |
57898597 | 233 | return class_fraction; |
539d5410 | 234 | } |
e0755cd1 | 235 | case scm_tc7_program: |
b2b33168 AW |
236 | if (SCM_PROGRAM_IS_PRIMITIVE_GENERIC (x) |
237 | && SCM_UNPACK (*SCM_SUBR_GENERIC (x))) | |
57898597 | 238 | return class_primitive_generic; |
fd12a19a | 239 | else |
57898597 | 240 | return class_procedure; |
539d5410 MV |
241 | |
242 | case scm_tc7_smob: | |
243 | { | |
244 | scm_t_bits type = SCM_TYP16 (x); | |
245 | if (type != scm_tc16_port_with_ps) | |
57898597 | 246 | return scm_i_smob_class[SCM_TC2SMOBNUM (type)]; |
539d5410 MV |
247 | x = SCM_PORT_WITH_PS_PORT (x); |
248 | /* fall through to ports */ | |
249 | } | |
250 | case scm_tc7_port: | |
57898597 AW |
251 | return scm_i_port_class[(SCM_WRTNG & SCM_CELL_WORD_0 (x) |
252 | ? (SCM_RDNG & SCM_CELL_WORD_0 (x) | |
253 | ? SCM_INOUT_PCLASS_INDEX | SCM_PTOBNUM (x) | |
254 | : SCM_OUT_PCLASS_INDEX | SCM_PTOBNUM (x)) | |
255 | : SCM_IN_PCLASS_INDEX | SCM_PTOBNUM (x))]; | |
539d5410 MV |
256 | case scm_tcs_struct: |
257 | if (SCM_OBJ_CLASS_FLAGS (x) & SCM_CLASSF_GOOPS_VALID) | |
2025a027 | 258 | /* A GOOPS object with a valid class. */ |
539d5410 MV |
259 | return SCM_CLASS_OF (x); |
260 | else if (SCM_OBJ_CLASS_FLAGS (x) & SCM_CLASSF_GOOPS) | |
2025a027 | 261 | /* A GOOPS object whose class might have been redefined. */ |
539d5410 | 262 | { |
2025a027 AW |
263 | SCM class = SCM_CLASS_OF (x); |
264 | SCM new_class = scm_slot_ref (class, sym_redefined); | |
265 | if (!scm_is_false (new_class)) | |
266 | scm_change_object_class (x, class, new_class); | |
267 | /* Re-load class from instance. */ | |
539d5410 MV |
268 | return SCM_CLASS_OF (x); |
269 | } | |
270 | else | |
f3c6a02c | 271 | return scm_i_define_class_for_vtable (SCM_CLASS_OF (x)); |
539d5410 MV |
272 | default: |
273 | if (scm_is_pair (x)) | |
57898597 | 274 | return class_pair; |
539d5410 | 275 | else |
57898597 | 276 | return class_unknown; |
539d5410 MV |
277 | } |
278 | ||
279 | case scm_tc3_struct: | |
280 | case scm_tc3_tc7_1: | |
281 | case scm_tc3_tc7_2: | |
314b8716 | 282 | /* case scm_tc3_unused: */ |
539d5410 MV |
283 | /* Never reached */ |
284 | break; | |
285 | } | |
57898597 | 286 | return class_unknown; |
539d5410 MV |
287 | } |
288 | #undef FUNC_NAME | |
289 | ||
51fd1cd6 AW |
290 | SCM_DEFINE (scm_sys_init_layout_x, "%init-layout!", 2, 0, 0, |
291 | (SCM class, SCM layout), | |
398d8ee1 | 292 | "") |
51fd1cd6 | 293 | #define FUNC_NAME s_scm_sys_init_layout_x |
80662eda | 294 | { |
398d8ee1 | 295 | SCM_VALIDATE_INSTANCE (1, class); |
51fd1cd6 AW |
296 | SCM_ASSERT (!scm_is_symbol (SCM_VTABLE_LAYOUT (class)), class, 1, FUNC_NAME); |
297 | SCM_VALIDATE_STRING (2, layout); | |
298 | ||
299 | SCM_SET_VTABLE_LAYOUT (class, scm_make_struct_layout (layout)); | |
80662eda MD |
300 | return SCM_UNSPECIFIED; |
301 | } | |
398d8ee1 | 302 | #undef FUNC_NAME |
80662eda | 303 | |
398d8ee1 KN |
304 | SCM_DEFINE (scm_sys_inherit_magic_x, "%inherit-magic!", 2, 0, 0, |
305 | (SCM class, SCM dsupers), | |
306 | "") | |
307 | #define FUNC_NAME s_scm_sys_inherit_magic_x | |
80662eda | 308 | { |
398d8ee1 | 309 | SCM_VALIDATE_INSTANCE (1, class); |
51f66c91 AW |
310 | scm_i_struct_inherit_vtable_magic (SCM_CLASS_OF (class), class); |
311 | SCM_SET_CLASS_FLAGS (class, SCM_CLASSF_GOOPS_OR_VALID); | |
80662eda | 312 | |
80662eda MD |
313 | return SCM_UNSPECIFIED; |
314 | } | |
398d8ee1 | 315 | #undef FUNC_NAME |
80662eda | 316 | |
80662eda MD |
317 | /******************************************************************************/ |
318 | ||
80662eda | 319 | SCM |
28b818d3 | 320 | scm_make_standard_class (SCM meta, SCM name, SCM dsupers, SCM dslots) |
80662eda | 321 | { |
51fd1cd6 | 322 | return scm_call_4 (scm_variable_ref (var_make_standard_class), |
28b818d3 | 323 | meta, name, dsupers, dslots); |
80662eda MD |
324 | } |
325 | ||
326 | /******************************************************************************/ | |
327 | ||
4702cbeb AW |
328 | SCM_DEFINE (scm_sys_make_root_class, "%make-root-class", 1, 0, 0, |
329 | (SCM layout), | |
51fd1cd6 AW |
330 | "") |
331 | #define FUNC_NAME s_scm_sys_make_root_class | |
80662eda | 332 | { |
4702cbeb AW |
333 | SCM z; |
334 | ||
335 | z = scm_i_make_vtable_vtable (layout); | |
336 | SCM_SET_CLASS_FLAGS (z, (SCM_CLASSF_GOOPS_OR_VALID | SCM_CLASSF_METACLASS)); | |
80662eda | 337 | |
51fd1cd6 | 338 | return z; |
80662eda | 339 | } |
51fd1cd6 | 340 | #undef FUNC_NAME |
80662eda MD |
341 | |
342 | /******************************************************************************/ | |
343 | ||
398d8ee1 KN |
344 | SCM_DEFINE (scm_instance_p, "instance?", 1, 0, 0, |
345 | (SCM obj), | |
6bcefd15 | 346 | "Return @code{#t} if @var{obj} is an instance.") |
398d8ee1 | 347 | #define FUNC_NAME s_scm_instance_p |
80662eda | 348 | { |
7888309b | 349 | return scm_from_bool (SCM_INSTANCEP (obj)); |
80662eda | 350 | } |
398d8ee1 | 351 | #undef FUNC_NAME |
80662eda | 352 | |
70dd6000 AW |
353 | SCM_DEFINE (scm_class_p, "class?", 1, 0, 0, |
354 | (SCM obj), | |
355 | "Return @code{#t} if @var{obj} is a class.") | |
356 | #define FUNC_NAME s_scm_class_p | |
357 | { | |
358 | return scm_from_bool (SCM_CLASSP (obj)); | |
359 | } | |
360 | #undef FUNC_NAME | |
361 | ||
57898597 AW |
362 | int |
363 | scm_is_generic (SCM x) | |
364 | { | |
365 | return SCM_INSTANCEP (x) && SCM_SUBCLASSP (SCM_CLASS_OF (x), class_generic); | |
366 | } | |
367 | ||
368 | int | |
369 | scm_is_method (SCM x) | |
370 | { | |
371 | return SCM_INSTANCEP (x) && SCM_SUBCLASSP (SCM_CLASS_OF (x), class_method); | |
372 | } | |
80662eda MD |
373 | |
374 | /****************************************************************************** | |
6d77c894 | 375 | * |
80662eda MD |
376 | * Meta object accessors |
377 | * | |
378 | ******************************************************************************/ | |
51fd1cd6 | 379 | |
70dd6000 AW |
380 | SCM |
381 | scm_class_name (SCM obj) | |
80662eda | 382 | { |
70dd6000 | 383 | return scm_call_1 (scm_variable_ref (var_class_name), obj); |
80662eda MD |
384 | } |
385 | ||
70dd6000 AW |
386 | SCM |
387 | scm_class_direct_supers (SCM obj) | |
80662eda | 388 | { |
70dd6000 | 389 | return scm_call_1 (scm_variable_ref (var_class_direct_supers), obj); |
80662eda MD |
390 | } |
391 | ||
70dd6000 AW |
392 | SCM |
393 | scm_class_direct_slots (SCM obj) | |
80662eda | 394 | { |
70dd6000 | 395 | return scm_call_1 (scm_variable_ref (var_class_direct_slots), obj); |
80662eda MD |
396 | } |
397 | ||
70dd6000 AW |
398 | SCM |
399 | scm_class_direct_subclasses (SCM obj) | |
80662eda | 400 | { |
70dd6000 | 401 | return scm_call_1 (scm_variable_ref (var_class_direct_subclasses), obj); |
80662eda MD |
402 | } |
403 | ||
70dd6000 AW |
404 | SCM |
405 | scm_class_direct_methods (SCM obj) | |
80662eda | 406 | { |
70dd6000 | 407 | return scm_call_1 (scm_variable_ref (var_class_direct_methods), obj); |
80662eda MD |
408 | } |
409 | ||
70dd6000 AW |
410 | SCM |
411 | scm_class_precedence_list (SCM obj) | |
80662eda | 412 | { |
70dd6000 | 413 | return scm_call_1 (scm_variable_ref (var_class_precedence_list), obj); |
80662eda MD |
414 | } |
415 | ||
70dd6000 AW |
416 | SCM |
417 | scm_class_slots (SCM obj) | |
80662eda | 418 | { |
70dd6000 | 419 | return scm_call_1 (scm_variable_ref (var_class_slots), obj); |
80662eda MD |
420 | } |
421 | ||
398d8ee1 | 422 | SCM_DEFINE (scm_generic_function_name, "generic-function-name", 1, 0, 0, |
70dd6000 | 423 | (SCM obj), |
6bcefd15 | 424 | "Return the name of the generic function @var{obj}.") |
398d8ee1 | 425 | #define FUNC_NAME s_scm_generic_function_name |
80662eda | 426 | { |
398d8ee1 | 427 | SCM_VALIDATE_GENERIC (1, obj); |
80662eda MD |
428 | return scm_procedure_property (obj, scm_sym_name); |
429 | } | |
398d8ee1 | 430 | #undef FUNC_NAME |
80662eda | 431 | |
48c981c9 AW |
432 | SCM |
433 | scm_generic_function_methods (SCM obj) | |
80662eda | 434 | { |
48c981c9 | 435 | return scm_call_1 (scm_variable_ref (var_generic_function_methods), obj); |
80662eda MD |
436 | } |
437 | ||
48c981c9 AW |
438 | SCM |
439 | scm_method_generic_function (SCM obj) | |
80662eda | 440 | { |
48c981c9 | 441 | return scm_call_1 (scm_variable_ref (var_method_generic_function), obj); |
80662eda MD |
442 | } |
443 | ||
48c981c9 AW |
444 | SCM |
445 | scm_method_specializers (SCM obj) | |
80662eda | 446 | { |
48c981c9 | 447 | return scm_call_1 (scm_variable_ref (var_method_specializers), obj); |
80662eda MD |
448 | } |
449 | ||
48c981c9 AW |
450 | SCM |
451 | scm_method_procedure (SCM obj) | |
80662eda | 452 | { |
48c981c9 | 453 | return scm_call_1 (scm_variable_ref (var_method_procedure), obj); |
80662eda MD |
454 | } |
455 | ||
80662eda MD |
456 | /****************************************************************************** |
457 | * | |
458 | * S l o t a c c e s s | |
459 | * | |
460 | ******************************************************************************/ | |
461 | ||
398d8ee1 KN |
462 | SCM_DEFINE (scm_make_unbound, "make-unbound", 0, 0, 0, |
463 | (), | |
6bcefd15 | 464 | "Return the unbound value.") |
398d8ee1 | 465 | #define FUNC_NAME s_scm_make_unbound |
80662eda MD |
466 | { |
467 | return SCM_GOOPS_UNBOUND; | |
468 | } | |
398d8ee1 | 469 | #undef FUNC_NAME |
80662eda | 470 | |
398d8ee1 KN |
471 | SCM_DEFINE (scm_unbound_p, "unbound?", 1, 0, 0, |
472 | (SCM obj), | |
6bcefd15 | 473 | "Return @code{#t} if @var{obj} is unbound.") |
398d8ee1 | 474 | #define FUNC_NAME s_scm_unbound_p |
80662eda MD |
475 | { |
476 | return SCM_GOOPS_UNBOUNDP (obj) ? SCM_BOOL_T : SCM_BOOL_F; | |
477 | } | |
398d8ee1 | 478 | #undef FUNC_NAME |
80662eda | 479 | |
80662eda | 480 | |
4d0949ea | 481 | \f |
80662eda | 482 | |
ade4cf4c AW |
483 | SCM |
484 | scm_slot_ref_using_class (SCM class, SCM obj, SCM slot_name) | |
80662eda | 485 | { |
ade4cf4c AW |
486 | return scm_call_3 (scm_variable_ref (var_slot_ref_using_class), |
487 | class, obj, slot_name); | |
80662eda | 488 | } |
80662eda | 489 | |
ade4cf4c AW |
490 | SCM |
491 | scm_slot_set_using_class_x (SCM class, SCM obj, SCM slot_name, SCM value) | |
80662eda | 492 | { |
ade4cf4c AW |
493 | return scm_call_4 (scm_variable_ref (var_slot_set_using_class_x), |
494 | class, obj, slot_name, value); | |
80662eda | 495 | } |
23437298 | 496 | |
ade4cf4c AW |
497 | SCM |
498 | scm_slot_bound_using_class_p (SCM class, SCM obj, SCM slot_name) | |
80662eda | 499 | { |
ade4cf4c AW |
500 | return scm_call_3 (scm_variable_ref (var_slot_bound_using_class_p), |
501 | class, obj, slot_name); | |
80662eda MD |
502 | } |
503 | ||
ade4cf4c AW |
504 | SCM |
505 | scm_slot_exists_using_class_p (SCM class, SCM obj, SCM slot_name) | |
398d8ee1 | 506 | { |
ade4cf4c AW |
507 | return scm_call_3 (scm_variable_ref (var_slot_exists_using_class_p), |
508 | class, obj, slot_name); | |
80662eda | 509 | } |
80662eda | 510 | |
ade4cf4c AW |
511 | SCM |
512 | scm_slot_ref (SCM obj, SCM slot_name) | |
80662eda | 513 | { |
ade4cf4c | 514 | return scm_call_2 (scm_variable_ref (var_slot_ref), obj, slot_name); |
80662eda MD |
515 | } |
516 | ||
ade4cf4c AW |
517 | SCM |
518 | scm_slot_set_x (SCM obj, SCM slot_name, SCM value) | |
80662eda | 519 | { |
ade4cf4c | 520 | return scm_call_3 (scm_variable_ref (var_slot_set_x), obj, slot_name, value); |
80662eda MD |
521 | } |
522 | ||
ade4cf4c AW |
523 | SCM |
524 | scm_slot_bound_p (SCM obj, SCM slot_name) | |
80662eda | 525 | { |
ade4cf4c | 526 | return scm_call_2 (scm_variable_ref (var_slot_bound_p), obj, slot_name); |
80662eda MD |
527 | } |
528 | ||
ade4cf4c AW |
529 | SCM |
530 | scm_slot_exists_p (SCM obj, SCM slot_name) | |
80662eda | 531 | { |
ade4cf4c | 532 | return scm_call_2 (scm_variable_ref (var_slot_exists_p), obj, slot_name); |
80662eda MD |
533 | } |
534 | ||
07452c83 AW |
535 | SCM_DEFINE (scm_sys_clear_fields_x, "%clear-fields!", 1, 0, 0, |
536 | (SCM obj), | |
537 | "") | |
538 | #define FUNC_NAME s_scm_sys_clear_fields_x | |
80662eda | 539 | { |
e25f3727 | 540 | scm_t_signed_bits n, i; |
07452c83 | 541 | SCM vtable, layout; |
80662eda | 542 | |
07452c83 AW |
543 | SCM_VALIDATE_STRUCT (1, obj); |
544 | vtable = SCM_STRUCT_VTABLE (obj); | |
80662eda | 545 | |
07452c83 AW |
546 | n = SCM_STRUCT_DATA_REF (vtable, scm_vtable_index_size); |
547 | layout = SCM_VTABLE_LAYOUT (vtable); | |
80662eda | 548 | |
07452c83 | 549 | /* Set all SCM-holding slots to the GOOPS unbound value. */ |
b6cf4d02 | 550 | for (i = 0; i < n; i++) |
07452c83 AW |
551 | if (scm_i_symbol_ref (layout, i*2) == 'p') |
552 | SCM_STRUCT_SLOT_SET (obj, i, SCM_GOOPS_UNBOUND); | |
6d77c894 | 553 | |
07452c83 | 554 | return SCM_UNSPECIFIED; |
80662eda | 555 | } |
398d8ee1 | 556 | #undef FUNC_NAME |
80662eda | 557 | |
80662eda MD |
558 | /****************************************************************************** |
559 | * | |
560 | * %modify-instance (used by change-class to modify in place) | |
6d77c894 | 561 | * |
80662eda MD |
562 | ******************************************************************************/ |
563 | ||
398d8ee1 KN |
564 | SCM_DEFINE (scm_sys_modify_instance, "%modify-instance", 2, 0, 0, |
565 | (SCM old, SCM new), | |
566 | "") | |
567 | #define FUNC_NAME s_scm_sys_modify_instance | |
80662eda | 568 | { |
398d8ee1 KN |
569 | SCM_VALIDATE_INSTANCE (1, old); |
570 | SCM_VALIDATE_INSTANCE (2, new); | |
80662eda | 571 | |
6d77c894 | 572 | /* Exchange the data contained in old and new. We exchange rather than |
80662eda MD |
573 | * scratch the old value with new to be correct with GC. |
574 | * See "Class redefinition protocol above". | |
575 | */ | |
9de87eea | 576 | SCM_CRITICAL_SECTION_START; |
80662eda | 577 | { |
32b12f40 KR |
578 | scm_t_bits word0, word1; |
579 | word0 = SCM_CELL_WORD_0 (old); | |
580 | word1 = SCM_CELL_WORD_1 (old); | |
581 | SCM_SET_CELL_WORD_0 (old, SCM_CELL_WORD_0 (new)); | |
582 | SCM_SET_CELL_WORD_1 (old, SCM_CELL_WORD_1 (new)); | |
583 | SCM_SET_CELL_WORD_0 (new, word0); | |
584 | SCM_SET_CELL_WORD_1 (new, word1); | |
80662eda | 585 | } |
9de87eea | 586 | SCM_CRITICAL_SECTION_END; |
80662eda MD |
587 | return SCM_UNSPECIFIED; |
588 | } | |
398d8ee1 | 589 | #undef FUNC_NAME |
80662eda | 590 | |
398d8ee1 KN |
591 | SCM_DEFINE (scm_sys_modify_class, "%modify-class", 2, 0, 0, |
592 | (SCM old, SCM new), | |
593 | "") | |
594 | #define FUNC_NAME s_scm_sys_modify_class | |
80662eda | 595 | { |
398d8ee1 KN |
596 | SCM_VALIDATE_CLASS (1, old); |
597 | SCM_VALIDATE_CLASS (2, new); | |
80662eda | 598 | |
9de87eea | 599 | SCM_CRITICAL_SECTION_START; |
80662eda | 600 | { |
32b12f40 KR |
601 | scm_t_bits word0, word1; |
602 | word0 = SCM_CELL_WORD_0 (old); | |
603 | word1 = SCM_CELL_WORD_1 (old); | |
604 | SCM_SET_CELL_WORD_0 (old, SCM_CELL_WORD_0 (new)); | |
605 | SCM_SET_CELL_WORD_1 (old, SCM_CELL_WORD_1 (new)); | |
b6cf4d02 | 606 | SCM_STRUCT_DATA (old)[scm_vtable_index_self] = SCM_UNPACK (old); |
32b12f40 KR |
607 | SCM_SET_CELL_WORD_0 (new, word0); |
608 | SCM_SET_CELL_WORD_1 (new, word1); | |
b6cf4d02 | 609 | SCM_STRUCT_DATA (new)[scm_vtable_index_self] = SCM_UNPACK (new); |
80662eda | 610 | } |
9de87eea | 611 | SCM_CRITICAL_SECTION_END; |
80662eda MD |
612 | return SCM_UNSPECIFIED; |
613 | } | |
398d8ee1 | 614 | #undef FUNC_NAME |
80662eda | 615 | |
398d8ee1 KN |
616 | SCM_DEFINE (scm_sys_invalidate_class, "%invalidate-class", 1, 0, 0, |
617 | (SCM class), | |
618 | "") | |
619 | #define FUNC_NAME s_scm_sys_invalidate_class | |
80662eda | 620 | { |
398d8ee1 | 621 | SCM_VALIDATE_CLASS (1, class); |
80662eda MD |
622 | SCM_CLEAR_CLASS_FLAGS (class, SCM_CLASSF_GOOPS_VALID); |
623 | return SCM_UNSPECIFIED; | |
624 | } | |
398d8ee1 | 625 | #undef FUNC_NAME |
80662eda MD |
626 | |
627 | /* When instances change class, they finally get a new body, but | |
628 | * before that, they go through purgatory in hell. Odd as it may | |
629 | * seem, this data structure saves us from eternal suffering in | |
630 | * infinite recursions. | |
631 | */ | |
632 | ||
92c2555f | 633 | static scm_t_bits **hell; |
c014a02e ML |
634 | static long n_hell = 1; /* one place for the evil one himself */ |
635 | static long hell_size = 4; | |
2132f0d2 | 636 | static SCM hell_mutex; |
80662eda | 637 | |
c014a02e | 638 | static long |
80662eda MD |
639 | burnin (SCM o) |
640 | { | |
c014a02e | 641 | long i; |
80662eda | 642 | for (i = 1; i < n_hell; ++i) |
6b80d352 | 643 | if (SCM_STRUCT_DATA (o) == hell[i]) |
80662eda MD |
644 | return i; |
645 | return 0; | |
646 | } | |
647 | ||
648 | static void | |
649 | go_to_hell (void *o) | |
650 | { | |
b5df9cda | 651 | SCM obj = *(SCM*)o; |
2132f0d2 | 652 | scm_lock_mutex (hell_mutex); |
51ef99f7 | 653 | if (n_hell >= hell_size) |
80662eda | 654 | { |
51ef99f7 | 655 | hell_size *= 2; |
408bcd99 | 656 | hell = scm_realloc (hell, hell_size * sizeof(*hell)); |
80662eda | 657 | } |
6b80d352 | 658 | hell[n_hell++] = SCM_STRUCT_DATA (obj); |
2132f0d2 | 659 | scm_unlock_mutex (hell_mutex); |
80662eda MD |
660 | } |
661 | ||
662 | static void | |
663 | go_to_heaven (void *o) | |
664 | { | |
b5df9cda | 665 | SCM obj = *(SCM*)o; |
2132f0d2 | 666 | scm_lock_mutex (hell_mutex); |
b5df9cda | 667 | hell[burnin (obj)] = hell[--n_hell]; |
2132f0d2 | 668 | scm_unlock_mutex (hell_mutex); |
80662eda MD |
669 | } |
670 | ||
6b80d352 | 671 | |
80662eda | 672 | static SCM |
b5df9cda | 673 | purgatory (SCM obj, SCM new_class) |
80662eda | 674 | { |
b5df9cda | 675 | return scm_call_2 (SCM_VARIABLE_REF (var_change_class), obj, new_class); |
80662eda MD |
676 | } |
677 | ||
38d8927c MD |
678 | /* This function calls the generic function change-class for all |
679 | * instances which aren't currently undergoing class change. | |
680 | */ | |
681 | ||
80662eda | 682 | void |
e81d98ec | 683 | scm_change_object_class (SCM obj, SCM old_class SCM_UNUSED, SCM new_class) |
80662eda MD |
684 | { |
685 | if (!burnin (obj)) | |
b5df9cda AW |
686 | { |
687 | scm_dynwind_begin (SCM_F_DYNWIND_REWINDABLE); | |
688 | scm_dynwind_rewind_handler (go_to_hell, &obj, SCM_F_WIND_EXPLICITLY); | |
689 | scm_dynwind_unwind_handler (go_to_heaven, &obj, SCM_F_WIND_EXPLICITLY); | |
690 | purgatory (obj, new_class); | |
691 | scm_dynwind_end (); | |
692 | } | |
80662eda MD |
693 | } |
694 | ||
695 | /****************************************************************************** | |
696 | * | |
6d77c894 TTN |
697 | * GGGG FFFFF |
698 | * G F | |
699 | * G GG FFF | |
700 | * G G F | |
80662eda MD |
701 | * GGG E N E R I C F U N C T I O N S |
702 | * | |
703 | * This implementation provides | |
704 | * - generic functions (with class specializers) | |
705 | * - multi-methods | |
6d77c894 | 706 | * - next-method |
80662eda MD |
707 | * - a hard-coded MOP for standard gf, which can be overloaded for non-std gf |
708 | * | |
709 | ******************************************************************************/ | |
710 | ||
398d8ee1 KN |
711 | SCM_DEFINE (scm_generic_capability_p, "generic-capability?", 1, 0, 0, |
712 | (SCM proc), | |
713 | "") | |
714 | #define FUNC_NAME s_scm_generic_capability_p | |
80662eda | 715 | { |
7888309b | 716 | SCM_ASSERT (scm_is_true (scm_procedure_p (proc)), |
398d8ee1 | 717 | proc, SCM_ARG1, FUNC_NAME); |
9fdf9fd3 | 718 | return (SCM_PRIMITIVE_GENERIC_P (proc) ? SCM_BOOL_T : SCM_BOOL_F); |
80662eda | 719 | } |
398d8ee1 | 720 | #undef FUNC_NAME |
80662eda | 721 | |
398d8ee1 KN |
722 | SCM_DEFINE (scm_enable_primitive_generic_x, "enable-primitive-generic!", 0, 0, 1, |
723 | (SCM subrs), | |
724 | "") | |
725 | #define FUNC_NAME s_scm_enable_primitive_generic_x | |
80662eda | 726 | { |
6b80d352 | 727 | SCM_VALIDATE_REST_ARGUMENT (subrs); |
d2e53ed6 | 728 | while (!scm_is_null (subrs)) |
80662eda MD |
729 | { |
730 | SCM subr = SCM_CAR (subrs); | |
9fdf9fd3 | 731 | SCM_ASSERT (SCM_PRIMITIVE_GENERIC_P (subr), subr, SCM_ARGn, FUNC_NAME); |
52fd9639 | 732 | SCM_SET_SUBR_GENERIC (subr, |
57898597 | 733 | scm_make (scm_list_3 (class_generic, |
52fd9639 AW |
734 | k_name, |
735 | SCM_SUBR_NAME (subr)))); | |
80662eda MD |
736 | subrs = SCM_CDR (subrs); |
737 | } | |
738 | return SCM_UNSPECIFIED; | |
739 | } | |
398d8ee1 | 740 | #undef FUNC_NAME |
80662eda | 741 | |
9f63ce02 AW |
742 | SCM_DEFINE (scm_set_primitive_generic_x, "set-primitive-generic!", 2, 0, 0, |
743 | (SCM subr, SCM generic), | |
744 | "") | |
745 | #define FUNC_NAME s_scm_set_primitive_generic_x | |
746 | { | |
9fdf9fd3 | 747 | SCM_ASSERT (SCM_PRIMITIVE_GENERIC_P (subr), subr, SCM_ARG1, FUNC_NAME); |
2b7692bc | 748 | SCM_ASSERT (SCM_GENERICP (generic), generic, SCM_ARG2, FUNC_NAME); |
52fd9639 | 749 | SCM_SET_SUBR_GENERIC (subr, generic); |
9f63ce02 AW |
750 | return SCM_UNSPECIFIED; |
751 | } | |
752 | #undef FUNC_NAME | |
753 | ||
398d8ee1 KN |
754 | SCM_DEFINE (scm_primitive_generic_generic, "primitive-generic-generic", 1, 0, 0, |
755 | (SCM subr), | |
756 | "") | |
757 | #define FUNC_NAME s_scm_primitive_generic_generic | |
80662eda | 758 | { |
9fdf9fd3 | 759 | if (SCM_PRIMITIVE_GENERIC_P (subr)) |
80662eda | 760 | { |
b2b33168 | 761 | if (!SCM_UNPACK (*SCM_SUBR_GENERIC (subr))) |
a48d60b1 MD |
762 | scm_enable_primitive_generic_x (scm_list_1 (subr)); |
763 | return *SCM_SUBR_GENERIC (subr); | |
80662eda | 764 | } |
db4b4ca6 | 765 | SCM_WRONG_TYPE_ARG (SCM_ARG1, subr); |
80662eda | 766 | } |
398d8ee1 | 767 | #undef FUNC_NAME |
80662eda | 768 | |
fa075d40 AW |
769 | /* Dirk:FIXME:: In all of these scm_wta_dispatch_* routines it is |
770 | * assumed that 'gf' is zero if uninitialized. It would be cleaner if | |
771 | * some valid SCM value like SCM_BOOL_F or SCM_UNDEFINED were chosen. | |
772 | */ | |
773 | ||
774 | SCM | |
775 | scm_wta_dispatch_0 (SCM gf, const char *subr) | |
776 | { | |
777 | if (!SCM_UNPACK (gf)) | |
778 | scm_error_num_args_subr (subr); | |
779 | ||
780 | return scm_call_0 (gf); | |
781 | } | |
782 | ||
783 | SCM | |
784 | scm_wta_dispatch_1 (SCM gf, SCM a1, int pos, const char *subr) | |
785 | { | |
786 | if (!SCM_UNPACK (gf)) | |
787 | scm_wrong_type_arg (subr, pos, a1); | |
788 | ||
789 | return scm_call_1 (gf, a1); | |
790 | } | |
791 | ||
792 | SCM | |
793 | scm_wta_dispatch_2 (SCM gf, SCM a1, SCM a2, int pos, const char *subr) | |
794 | { | |
795 | if (!SCM_UNPACK (gf)) | |
796 | scm_wrong_type_arg (subr, pos, (pos == SCM_ARG1) ? a1 : a2); | |
797 | ||
798 | return scm_call_2 (gf, a1, a2); | |
799 | } | |
800 | ||
801 | SCM | |
802 | scm_wta_dispatch_n (SCM gf, SCM args, int pos, const char *subr) | |
803 | { | |
804 | if (!SCM_UNPACK (gf)) | |
805 | scm_wrong_type_arg (subr, pos, scm_list_ref (args, scm_from_int (pos))); | |
806 | ||
807 | return scm_apply_0 (gf, args); | |
808 | } | |
809 | ||
80662eda | 810 | /****************************************************************************** |
6d77c894 | 811 | * |
80662eda | 812 | * Protocol for calling a generic fumction |
6d77c894 | 813 | * This protocol is roughly equivalent to (parameter are a little bit different |
80662eda MD |
814 | * for efficiency reasons): |
815 | * | |
816 | * + apply-generic (gf args) | |
817 | * + compute-applicable-methods (gf args ...) | |
818 | * + sort-applicable-methods (methods args) | |
819 | * + apply-methods (gf methods args) | |
6d77c894 TTN |
820 | * |
821 | * apply-methods calls make-next-method to build the "continuation" of a a | |
80662eda MD |
822 | * method. Applying a next-method will call apply-next-method which in |
823 | * turn will call apply again to call effectively the following method. | |
824 | * | |
825 | ******************************************************************************/ | |
826 | ||
398d8ee1 KN |
827 | SCM_DEFINE (scm_make, "make", 0, 0, 1, |
828 | (SCM args), | |
27c37006 | 829 | "Make a new object. @var{args} must contain the class and\n" |
6bcefd15 | 830 | "all necessary initialization information.") |
398d8ee1 | 831 | #define FUNC_NAME s_scm_make |
80662eda | 832 | { |
e0590e7c | 833 | return scm_apply_0 (scm_variable_ref (var_make), args); |
80662eda | 834 | } |
398d8ee1 | 835 | #undef FUNC_NAME |
80662eda | 836 | |
80662eda | 837 | |
80662eda MD |
838 | /********************************************************************** |
839 | * | |
840 | * Smob classes | |
841 | * | |
842 | **********************************************************************/ | |
843 | ||
844 | static SCM | |
2e0b6934 | 845 | make_class_name (const char *prefix, const char *type_name, const char *suffix) |
80662eda | 846 | { |
2e0b6934 AW |
847 | if (!type_name) |
848 | type_name = ""; | |
849 | return scm_string_to_symbol (scm_string_append | |
850 | (scm_list_3 (scm_from_utf8_string (prefix), | |
851 | scm_from_utf8_string (type_name), | |
852 | scm_from_utf8_string (suffix)))); | |
80662eda MD |
853 | } |
854 | ||
855 | SCM | |
da0e6c2b | 856 | scm_make_extended_class (char const *type_name, int applicablep) |
80662eda | 857 | { |
2e0b6934 AW |
858 | SCM name, meta, supers; |
859 | ||
860 | name = make_class_name ("<", type_name, ">"); | |
861 | meta = class_class; | |
862 | ||
863 | if (applicablep) | |
864 | supers = scm_list_1 (class_applicable); | |
865 | else | |
866 | supers = scm_list_1 (class_top); | |
867 | ||
868 | return scm_make_standard_class (meta, name, supers, SCM_EOL); | |
74b6d6e4 MD |
869 | } |
870 | ||
871 | void | |
872 | scm_i_inherit_applicable (SCM c) | |
873 | { | |
f37bece4 | 874 | scm_call_1 (scm_variable_ref (var_inherit_applicable), c); |
80662eda MD |
875 | } |
876 | ||
877 | static void | |
878 | create_smob_classes (void) | |
879 | { | |
c014a02e | 880 | long i; |
80662eda | 881 | |
c891a40e | 882 | for (i = 0; i < SCM_I_MAX_SMOB_TYPE_COUNT; ++i) |
57898597 | 883 | scm_i_smob_class[i] = SCM_BOOL_F; |
80662eda | 884 | |
80662eda | 885 | for (i = 0; i < scm_numsmob; ++i) |
57898597 AW |
886 | if (scm_is_false (scm_i_smob_class[i])) |
887 | scm_i_smob_class[i] = scm_make_extended_class (SCM_SMOBNAME (i), | |
888 | scm_smobs[i].apply != 0); | |
80662eda MD |
889 | } |
890 | ||
891 | void | |
c014a02e | 892 | scm_make_port_classes (long ptobnum, char *type_name) |
80662eda | 893 | { |
2e0b6934 AW |
894 | SCM name, meta, super, supers; |
895 | ||
896 | meta = class_class; | |
897 | ||
898 | name = make_class_name ("<", type_name, "-port>"); | |
899 | supers = scm_list_1 (class_port); | |
900 | super = scm_make_standard_class (meta, name, supers, SCM_EOL); | |
901 | ||
902 | name = make_class_name ("<", type_name, "-input-port>"); | |
903 | supers = scm_list_2 (super, class_input_port); | |
57898597 | 904 | scm_i_port_class[SCM_IN_PCLASS_INDEX + ptobnum] |
2e0b6934 AW |
905 | = scm_make_standard_class (meta, name, supers, SCM_EOL); |
906 | ||
907 | name = make_class_name ("<", type_name, "-output-port>"); | |
908 | supers = scm_list_2 (super, class_output_port); | |
57898597 | 909 | scm_i_port_class[SCM_OUT_PCLASS_INDEX + ptobnum] |
2e0b6934 AW |
910 | = scm_make_standard_class (meta, name, supers, SCM_EOL); |
911 | ||
912 | name = make_class_name ("<", type_name, "-input-output-port>"); | |
913 | supers = scm_list_2 (super, class_input_output_port); | |
57898597 | 914 | scm_i_port_class[SCM_INOUT_PCLASS_INDEX + ptobnum] |
2e0b6934 | 915 | = scm_make_standard_class (meta, name, supers, SCM_EOL); |
80662eda MD |
916 | } |
917 | ||
918 | static void | |
919 | create_port_classes (void) | |
920 | { | |
c014a02e | 921 | long i; |
80662eda | 922 | |
62bd5d66 | 923 | for (i = scm_c_num_port_types () - 1; i >= 0; i--) |
80662eda MD |
924 | scm_make_port_classes (i, SCM_PTOBNAME (i)); |
925 | } | |
926 | ||
6c7dd9eb AW |
927 | SCM |
928 | scm_i_define_class_for_vtable (SCM vtable) | |
929 | { | |
930 | SCM class; | |
931 | ||
932 | scm_i_pthread_mutex_lock (&scm_i_misc_mutex); | |
933 | if (scm_is_false (vtable_class_map)) | |
934 | vtable_class_map = scm_c_make_weak_table (0, SCM_WEAK_TABLE_KIND_KEY); | |
935 | scm_i_pthread_mutex_unlock (&scm_i_misc_mutex); | |
936 | ||
937 | if (scm_is_false (scm_struct_vtable_p (vtable))) | |
938 | abort (); | |
939 | ||
940 | class = scm_weak_table_refq (vtable_class_map, vtable, SCM_BOOL_F); | |
941 | ||
942 | if (scm_is_false (class)) | |
943 | { | |
57898597 | 944 | if (SCM_UNPACK (class_class)) |
6c7dd9eb AW |
945 | { |
946 | SCM name, meta, supers; | |
947 | ||
948 | name = SCM_VTABLE_NAME (vtable); | |
949 | if (scm_is_symbol (name)) | |
950 | name = scm_string_to_symbol | |
951 | (scm_string_append | |
952 | (scm_list_3 (scm_from_latin1_string ("<"), | |
953 | scm_symbol_to_string (name), | |
954 | scm_from_latin1_string (">")))); | |
955 | else | |
956 | name = scm_from_latin1_symbol ("<>"); | |
957 | ||
958 | if (SCM_STRUCT_VTABLE_FLAG_IS_SET (vtable, SCM_VTABLE_FLAG_SETTER)) | |
959 | { | |
57898597 AW |
960 | meta = class_applicable_struct_with_setter_class; |
961 | supers = scm_list_1 (class_applicable_struct_with_setter); | |
6c7dd9eb AW |
962 | } |
963 | else if (SCM_STRUCT_VTABLE_FLAG_IS_SET (vtable, | |
964 | SCM_VTABLE_FLAG_APPLICABLE)) | |
965 | { | |
57898597 AW |
966 | meta = class_applicable_struct_class; |
967 | supers = scm_list_1 (class_applicable_struct); | |
6c7dd9eb AW |
968 | } |
969 | else | |
970 | { | |
57898597 AW |
971 | meta = class_class; |
972 | supers = scm_list_1 (class_top); | |
6c7dd9eb AW |
973 | } |
974 | ||
975 | return scm_make_standard_class (meta, name, supers, SCM_EOL); | |
976 | } | |
977 | else | |
978 | /* `create_struct_classes' will fill this in later. */ | |
979 | class = SCM_BOOL_F; | |
980 | ||
981 | /* Don't worry about races. This only happens when creating a | |
982 | vtable, which happens by definition in one thread. */ | |
983 | scm_weak_table_putq_x (vtable_class_map, vtable, class); | |
984 | } | |
985 | ||
986 | return class; | |
987 | } | |
988 | ||
80662eda | 989 | static SCM |
74b6d6e4 MD |
990 | make_struct_class (void *closure SCM_UNUSED, |
991 | SCM vtable, SCM data, SCM prev SCM_UNUSED) | |
80662eda | 992 | { |
f3c6a02c AW |
993 | if (scm_is_false (data)) |
994 | scm_i_define_class_for_vtable (vtable); | |
80662eda MD |
995 | return SCM_UNSPECIFIED; |
996 | } | |
997 | ||
998 | static void | |
999 | create_struct_classes (void) | |
1000 | { | |
ea742d29 | 1001 | /* FIXME: take the vtable_class_map while initializing goops? */ |
f3c6a02c AW |
1002 | scm_internal_hash_fold (make_struct_class, 0, SCM_BOOL_F, |
1003 | vtable_class_map); | |
80662eda MD |
1004 | } |
1005 | ||
1006 | /********************************************************************** | |
1007 | * | |
1008 | * C interface | |
1009 | * | |
1010 | **********************************************************************/ | |
1011 | ||
1012 | void | |
1013 | scm_load_goops () | |
1014 | { | |
1015 | if (!goops_loaded_p) | |
abd28220 | 1016 | scm_c_resolve_module ("oop goops"); |
80662eda MD |
1017 | } |
1018 | ||
80662eda MD |
1019 | SCM |
1020 | scm_ensure_accessor (SCM name) | |
1021 | { | |
3f48638c AW |
1022 | SCM var, gf; |
1023 | ||
1024 | var = scm_module_variable (scm_current_module (), name); | |
1025 | if (SCM_VARIABLEP (var) && !SCM_UNBNDP (SCM_VARIABLE_REF (var))) | |
1026 | gf = SCM_VARIABLE_REF (var); | |
1027 | else | |
1028 | gf = SCM_BOOL_F; | |
1029 | ||
57898597 | 1030 | if (!SCM_IS_A_P (gf, class_accessor)) |
80662eda | 1031 | { |
57898597 AW |
1032 | gf = scm_make (scm_list_3 (class_generic, k_name, name)); |
1033 | gf = scm_make (scm_list_5 (class_accessor, | |
1afff620 | 1034 | k_name, name, k_setter, gf)); |
80662eda | 1035 | } |
3f48638c | 1036 | |
80662eda MD |
1037 | return gf; |
1038 | } | |
1039 | ||
80662eda MD |
1040 | /* |
1041 | * Initialization | |
1042 | */ | |
1043 | ||
6c7dd9eb AW |
1044 | SCM_DEFINE (scm_sys_bless_applicable_struct_vtables_x, "%bless-applicable-struct-vtables!", 2, 0, 0, |
1045 | (SCM applicable, SCM setter), | |
51fd1cd6 | 1046 | "") |
6c7dd9eb | 1047 | #define FUNC_NAME s_scm_sys_bless_applicable_struct_vtables_x |
51fd1cd6 | 1048 | { |
6c7dd9eb AW |
1049 | SCM_VALIDATE_CLASS (1, applicable); |
1050 | SCM_VALIDATE_CLASS (2, setter); | |
1051 | SCM_SET_VTABLE_FLAGS (applicable, SCM_VTABLE_FLAG_APPLICABLE_VTABLE); | |
1052 | SCM_SET_VTABLE_FLAGS (setter, SCM_VTABLE_FLAG_SETTER_VTABLE); | |
51fd1cd6 AW |
1053 | return SCM_UNSPECIFIED; |
1054 | } | |
1055 | #undef FUNC_NAME | |
1056 | ||
82ab5090 AW |
1057 | SCM_DEFINE (scm_sys_goops_early_init, "%goops-early-init", 0, 0, 0, |
1058 | (), | |
1059 | "") | |
1060 | #define FUNC_NAME s_scm_sys_goops_early_init | |
1061 | { | |
51fd1cd6 | 1062 | var_make_standard_class = scm_c_lookup ("make-standard-class"); |
e0590e7c | 1063 | var_make = scm_c_lookup ("make"); |
f37bece4 | 1064 | var_inherit_applicable = scm_c_lookup ("inherit-applicable!"); |
51fd1cd6 | 1065 | |
2025a027 AW |
1066 | /* For SCM_SUBCLASSP. */ |
1067 | var_class_precedence_list = scm_c_lookup ("class-precedence-list"); | |
1068 | ||
ade4cf4c AW |
1069 | var_slot_ref_using_class = scm_c_lookup ("slot-ref-using-class"); |
1070 | var_slot_set_using_class_x = scm_c_lookup ("slot-set-using-class!"); | |
1071 | var_slot_bound_using_class_p = scm_c_lookup ("slot-bound-using-class?"); | |
1072 | var_slot_exists_using_class_p = scm_c_lookup ("slot-exists-using-class?"); | |
1073 | ||
1074 | var_slot_ref = scm_c_lookup ("slot-ref"); | |
1075 | var_slot_set_x = scm_c_lookup ("slot-set!"); | |
1076 | var_slot_bound_p = scm_c_lookup ("slot-bound?"); | |
1077 | var_slot_exists_p = scm_c_lookup ("slot-exists?"); | |
1078 | ||
57898597 AW |
1079 | class_class = scm_variable_ref (scm_c_lookup ("<class>")); |
1080 | class_top = scm_variable_ref (scm_c_lookup ("<top>")); | |
1081 | class_object = scm_variable_ref (scm_c_lookup ("<object>")); | |
1082 | ||
1083 | class_foreign_slot = scm_variable_ref (scm_c_lookup ("<foreign-slot>")); | |
1084 | class_protected = scm_variable_ref (scm_c_lookup ("<protected-slot>")); | |
1085 | class_hidden = scm_variable_ref (scm_c_lookup ("<hidden-slot>")); | |
1086 | class_opaque = scm_variable_ref (scm_c_lookup ("<opaque-slot>")); | |
1087 | class_read_only = scm_variable_ref (scm_c_lookup ("<read-only-slot>")); | |
1088 | class_self = scm_variable_ref (scm_c_lookup ("<self-slot>")); | |
1089 | class_protected_opaque = scm_variable_ref (scm_c_lookup ("<protected-opaque-slot>")); | |
1090 | class_protected_hidden = scm_variable_ref (scm_c_lookup ("<protected-hidden-slot>")); | |
1091 | class_protected_read_only = scm_variable_ref (scm_c_lookup ("<protected-read-only-slot>")); | |
1092 | class_scm = scm_variable_ref (scm_c_lookup ("<scm-slot>")); | |
1093 | class_int = scm_variable_ref (scm_c_lookup ("<int-slot>")); | |
1094 | class_float = scm_variable_ref (scm_c_lookup ("<float-slot>")); | |
1095 | class_double = scm_variable_ref (scm_c_lookup ("<double-slot>")); | |
1096 | ||
1097 | /* Applicables */ | |
1098 | class_procedure_class = scm_variable_ref (scm_c_lookup ("<procedure-class>")); | |
1099 | class_applicable_struct_class = scm_variable_ref (scm_c_lookup ("<applicable-struct-class>")); | |
1100 | class_applicable_struct_with_setter_class = | |
6c7dd9eb | 1101 | scm_variable_ref (scm_c_lookup ("<applicable-struct-with-setter-class>")); |
51fd1cd6 | 1102 | |
57898597 AW |
1103 | class_method = scm_variable_ref (scm_c_lookup ("<method>")); |
1104 | class_accessor_method = scm_variable_ref (scm_c_lookup ("<accessor-method>")); | |
1105 | class_applicable = scm_variable_ref (scm_c_lookup ("<applicable>")); | |
1106 | class_applicable_struct = scm_variable_ref (scm_c_lookup ("<applicable-struct>")); | |
1107 | class_applicable_struct_with_setter = scm_variable_ref (scm_c_lookup ("<applicable-struct-with-setter>")); | |
1108 | class_generic = scm_variable_ref (scm_c_lookup ("<generic>")); | |
1109 | class_extended_generic = scm_variable_ref (scm_c_lookup ("<extended-generic>")); | |
1110 | class_generic_with_setter = scm_variable_ref (scm_c_lookup ("<generic-with-setter>")); | |
1111 | class_accessor = scm_variable_ref (scm_c_lookup ("<accessor>")); | |
1112 | class_extended_generic_with_setter = scm_variable_ref (scm_c_lookup ("<extended-generic-with-setter>")); | |
1113 | class_extended_accessor = scm_variable_ref (scm_c_lookup ("<extended-accessor>")); | |
51fd1cd6 AW |
1114 | |
1115 | /* Primitive types classes */ | |
57898597 AW |
1116 | class_boolean = scm_variable_ref (scm_c_lookup ("<boolean>")); |
1117 | class_char = scm_variable_ref (scm_c_lookup ("<char>")); | |
1118 | class_list = scm_variable_ref (scm_c_lookup ("<list>")); | |
1119 | class_pair = scm_variable_ref (scm_c_lookup ("<pair>")); | |
1120 | class_null = scm_variable_ref (scm_c_lookup ("<null>")); | |
1121 | class_string = scm_variable_ref (scm_c_lookup ("<string>")); | |
1122 | class_symbol = scm_variable_ref (scm_c_lookup ("<symbol>")); | |
1123 | class_vector = scm_variable_ref (scm_c_lookup ("<vector>")); | |
51fd1cd6 AW |
1124 | class_foreign = scm_variable_ref (scm_c_lookup ("<foreign>")); |
1125 | class_hashtable = scm_variable_ref (scm_c_lookup ("<hashtable>")); | |
1126 | class_fluid = scm_variable_ref (scm_c_lookup ("<fluid>")); | |
1127 | class_dynamic_state = scm_variable_ref (scm_c_lookup ("<dynamic-state>")); | |
1128 | class_frame = scm_variable_ref (scm_c_lookup ("<frame>")); | |
1129 | class_vm_cont = scm_variable_ref (scm_c_lookup ("<vm-continuation>")); | |
1130 | class_bytevector = scm_variable_ref (scm_c_lookup ("<bytevector>")); | |
1131 | class_uvec = scm_variable_ref (scm_c_lookup ("<uvec>")); | |
1132 | class_array = scm_variable_ref (scm_c_lookup ("<array>")); | |
1133 | class_bitvector = scm_variable_ref (scm_c_lookup ("<bitvector>")); | |
57898597 AW |
1134 | class_number = scm_variable_ref (scm_c_lookup ("<number>")); |
1135 | class_complex = scm_variable_ref (scm_c_lookup ("<complex>")); | |
1136 | class_real = scm_variable_ref (scm_c_lookup ("<real>")); | |
1137 | class_integer = scm_variable_ref (scm_c_lookup ("<integer>")); | |
1138 | class_fraction = scm_variable_ref (scm_c_lookup ("<fraction>")); | |
1139 | class_keyword = scm_variable_ref (scm_c_lookup ("<keyword>")); | |
1140 | class_unknown = scm_variable_ref (scm_c_lookup ("<unknown>")); | |
1141 | class_procedure = scm_variable_ref (scm_c_lookup ("<procedure>")); | |
1142 | class_primitive_generic = scm_variable_ref (scm_c_lookup ("<primitive-generic>")); | |
1143 | class_port = scm_variable_ref (scm_c_lookup ("<port>")); | |
1144 | class_input_port = scm_variable_ref (scm_c_lookup ("<input-port>")); | |
1145 | class_output_port = scm_variable_ref (scm_c_lookup ("<output-port>")); | |
1146 | class_input_output_port = scm_variable_ref (scm_c_lookup ("<input-output-port>")); | |
51fd1cd6 | 1147 | |
82ab5090 AW |
1148 | create_smob_classes (); |
1149 | create_struct_classes (); | |
1150 | create_port_classes (); | |
1151 | ||
82ab5090 AW |
1152 | return SCM_UNSPECIFIED; |
1153 | } | |
1154 | #undef FUNC_NAME | |
1155 | ||
398d8ee1 KN |
1156 | SCM_DEFINE (scm_sys_goops_loaded, "%goops-loaded", 0, 0, 0, |
1157 | (), | |
6bcefd15 MG |
1158 | "Announce that GOOPS is loaded and perform initialization\n" |
1159 | "on the C level which depends on the loaded GOOPS modules.") | |
398d8ee1 | 1160 | #define FUNC_NAME s_scm_sys_goops_loaded |
80662eda MD |
1161 | { |
1162 | goops_loaded_p = 1; | |
48c981c9 AW |
1163 | var_class_name = scm_c_lookup ("class-name"); |
1164 | var_class_direct_supers = scm_c_lookup ("class-direct-supers"); | |
1165 | var_class_direct_slots = scm_c_lookup ("class-direct-slots"); | |
1166 | var_class_direct_subclasses = scm_c_lookup ("class-direct-subclasses"); | |
1167 | var_class_direct_methods = scm_c_lookup ("class-direct-methods"); | |
48c981c9 AW |
1168 | var_class_slots = scm_c_lookup ("class-slots"); |
1169 | ||
1170 | var_generic_function_methods = scm_c_lookup ("generic-function-methods"); | |
1171 | var_method_generic_function = scm_c_lookup ("method-generic-function"); | |
1172 | var_method_specializers = scm_c_lookup ("method-specializers"); | |
1173 | var_method_procedure = scm_c_lookup ("method-procedure"); | |
1174 | ||
5a6165db | 1175 | var_change_class = scm_c_lookup ("change-class"); |
623559f3 AW |
1176 | |
1177 | #if (SCM_ENABLE_DEPRECATED == 1) | |
1178 | scm_init_deprecated_goops (); | |
1179 | #endif | |
1180 | ||
80662eda MD |
1181 | return SCM_UNSPECIFIED; |
1182 | } | |
398d8ee1 | 1183 | #undef FUNC_NAME |
80662eda MD |
1184 | |
1185 | SCM scm_module_goops; | |
1186 | ||
6ab19396 AW |
1187 | static void |
1188 | scm_init_goops_builtins (void *unused) | |
80662eda | 1189 | { |
abd28220 | 1190 | scm_module_goops = scm_current_module (); |
80662eda | 1191 | |
bb764c0e | 1192 | hell = scm_calloc (hell_size * sizeof (*hell)); |
f39448c5 | 1193 | hell_mutex = scm_make_mutex (); |
80662eda | 1194 | |
82ab5090 | 1195 | #include "libguile/goops.x" |
80662eda MD |
1196 | } |
1197 | ||
1198 | void | |
abd28220 | 1199 | scm_init_goops () |
80662eda | 1200 | { |
6ab19396 AW |
1201 | scm_c_register_extension ("libguile-" SCM_EFFECTIVE_VERSION, |
1202 | "scm_init_goops_builtins", scm_init_goops_builtins, | |
1203 | NULL); | |
80662eda | 1204 | } |
23437298 DH |
1205 | |
1206 | /* | |
1207 | Local Variables: | |
1208 | c-file-style: "gnu" | |
1209 | End: | |
1210 | */ |