| 1 | /* Copyright (C) 1998,1999,2000,2001,2002,2003,2004,2008,2009,2010,2011,2012,2013,2014,2015 |
| 2 | * Free Software Foundation, Inc. |
| 3 | * |
| 4 | * This library is free software; you can redistribute it and/or |
| 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. |
| 8 | * |
| 9 | * This library is distributed in the hope that it will be useful, but |
| 10 | * WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | * Lesser General Public License for more details. |
| 13 | * |
| 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 |
| 16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
| 17 | * 02110-1301 USA |
| 18 | */ |
| 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 | |
| 28 | #ifdef HAVE_CONFIG_H |
| 29 | # include <config.h> |
| 30 | #endif |
| 31 | |
| 32 | #include "libguile/_scm.h" |
| 33 | #include "libguile/async.h" |
| 34 | #include "libguile/chars.h" |
| 35 | #include "libguile/dynwind.h" |
| 36 | #include "libguile/eval.h" |
| 37 | #include "libguile/gsubr.h" |
| 38 | #include "libguile/hashtab.h" |
| 39 | #include "libguile/keywords.h" |
| 40 | #include "libguile/macros.h" |
| 41 | #include "libguile/modules.h" |
| 42 | #include "libguile/ports.h" |
| 43 | #include "libguile/procprop.h" |
| 44 | #include "libguile/programs.h" |
| 45 | #include "libguile/smob.h" |
| 46 | #include "libguile/strings.h" |
| 47 | #include "libguile/strports.h" |
| 48 | #include "libguile/vectors.h" |
| 49 | |
| 50 | #include "libguile/validate.h" |
| 51 | #include "libguile/goops.h" |
| 52 | |
| 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 | |
| 58 | /* Objects have identity, so references to classes and instances are by |
| 59 | value, not by reference. Redefinition of a class or modification of |
| 60 | an instance causes in-place update; you can think of GOOPS as |
| 61 | building in its own indirection, and for that reason referring to |
| 62 | GOOPS values by variable reference is unnecessary. |
| 63 | |
| 64 | References to ordinary procedures is by reference (by variable), |
| 65 | though, as in the rest of Guile. */ |
| 66 | |
| 67 | SCM_KEYWORD (k_name, "name"); |
| 68 | SCM_KEYWORD (k_setter, "setter"); |
| 69 | SCM_SYMBOL (sym_redefined, "redefined"); |
| 70 | SCM_GLOBAL_SYMBOL (scm_sym_args, "args"); |
| 71 | |
| 72 | static int goops_loaded_p = 0; |
| 73 | |
| 74 | static SCM var_make_standard_class = SCM_BOOL_F; |
| 75 | static SCM var_change_class = SCM_BOOL_F; |
| 76 | static SCM var_make = SCM_BOOL_F; |
| 77 | static SCM var_inherit_applicable = SCM_BOOL_F; |
| 78 | static SCM var_class_name = SCM_BOOL_F; |
| 79 | static SCM var_class_direct_supers = SCM_BOOL_F; |
| 80 | static SCM var_class_direct_slots = SCM_BOOL_F; |
| 81 | static SCM var_class_direct_subclasses = SCM_BOOL_F; |
| 82 | static SCM var_class_direct_methods = SCM_BOOL_F; |
| 83 | static SCM var_class_precedence_list = SCM_BOOL_F; |
| 84 | static SCM var_class_slots = SCM_BOOL_F; |
| 85 | |
| 86 | static SCM var_generic_function_methods = SCM_BOOL_F; |
| 87 | static SCM var_method_generic_function = SCM_BOOL_F; |
| 88 | static SCM var_method_specializers = SCM_BOOL_F; |
| 89 | static SCM var_method_procedure = SCM_BOOL_F; |
| 90 | |
| 91 | static SCM var_slot_ref = SCM_BOOL_F; |
| 92 | static SCM var_slot_set_x = SCM_BOOL_F; |
| 93 | static SCM var_slot_bound_p = SCM_BOOL_F; |
| 94 | static SCM var_slot_exists_p = SCM_BOOL_F; |
| 95 | |
| 96 | /* These variables are filled in by the object system when loaded. */ |
| 97 | static SCM class_boolean, class_char, class_pair; |
| 98 | static SCM class_procedure, class_string, class_symbol; |
| 99 | static SCM class_primitive_generic; |
| 100 | static SCM class_vector, class_null; |
| 101 | static SCM class_integer, class_real, class_complex, class_fraction; |
| 102 | static SCM class_unknown; |
| 103 | static SCM class_top, class_object, class_class; |
| 104 | static SCM class_applicable; |
| 105 | static SCM class_applicable_struct, class_applicable_struct_with_setter; |
| 106 | static SCM class_generic, class_generic_with_setter; |
| 107 | static SCM class_accessor; |
| 108 | static SCM class_extended_generic, class_extended_generic_with_setter; |
| 109 | static SCM class_extended_accessor; |
| 110 | static SCM class_method; |
| 111 | static SCM class_accessor_method; |
| 112 | static SCM class_procedure_class; |
| 113 | static SCM class_applicable_struct_class; |
| 114 | static SCM class_applicable_struct_with_setter_class; |
| 115 | static SCM class_number, class_list; |
| 116 | static SCM class_keyword; |
| 117 | static SCM class_port, class_input_output_port; |
| 118 | static SCM class_input_port, class_output_port; |
| 119 | static SCM class_foreign_slot; |
| 120 | static SCM class_self, class_protected; |
| 121 | static SCM class_hidden, class_opaque, class_read_only; |
| 122 | static SCM class_protected_hidden, class_protected_opaque, class_protected_read_only; |
| 123 | static SCM class_scm; |
| 124 | static SCM class_int, class_float, class_double; |
| 125 | |
| 126 | static SCM class_foreign; |
| 127 | static SCM class_hashtable; |
| 128 | static SCM class_fluid; |
| 129 | static SCM class_dynamic_state; |
| 130 | static SCM class_frame; |
| 131 | static SCM class_keyword; |
| 132 | static SCM class_vm_cont; |
| 133 | static SCM class_bytevector; |
| 134 | static SCM class_uvec; |
| 135 | static SCM class_array; |
| 136 | static SCM class_bitvector; |
| 137 | |
| 138 | static SCM vtable_class_map = SCM_BOOL_F; |
| 139 | |
| 140 | /* Port classes. Allocate 3 times the maximum number of port types so that |
| 141 | input ports, output ports, and in/out ports can be stored at different |
| 142 | offsets. See `SCM_IN_PCLASS_INDEX' et al. */ |
| 143 | SCM scm_i_port_class[3 * SCM_I_MAX_PORT_TYPE_COUNT]; |
| 144 | |
| 145 | /* SMOB classes. */ |
| 146 | SCM scm_i_smob_class[SCM_I_MAX_SMOB_TYPE_COUNT]; |
| 147 | |
| 148 | SCM scm_module_goops; |
| 149 | |
| 150 | static SCM scm_sys_make_vtable_vtable (SCM layout); |
| 151 | static SCM scm_sys_init_layout_x (SCM class, SCM layout); |
| 152 | static SCM scm_sys_clear_fields_x (SCM obj, SCM unbound); |
| 153 | static SCM scm_sys_goops_early_init (void); |
| 154 | static SCM scm_sys_goops_loaded (void); |
| 155 | |
| 156 | |
| 157 | \f |
| 158 | |
| 159 | SCM_DEFINE (scm_sys_make_vtable_vtable, "%make-vtable-vtable", 1, 0, 0, |
| 160 | (SCM layout), |
| 161 | "") |
| 162 | #define FUNC_NAME s_scm_sys_make_vtable_vtable |
| 163 | { |
| 164 | return scm_i_make_vtable_vtable (layout); |
| 165 | } |
| 166 | #undef FUNC_NAME |
| 167 | |
| 168 | SCM |
| 169 | scm_make_standard_class (SCM meta, SCM name, SCM dsupers, SCM dslots) |
| 170 | { |
| 171 | return scm_call_4 (scm_variable_ref (var_make_standard_class), |
| 172 | meta, name, dsupers, dslots); |
| 173 | } |
| 174 | |
| 175 | SCM_DEFINE (scm_sys_init_layout_x, "%init-layout!", 2, 0, 0, |
| 176 | (SCM class, SCM layout), |
| 177 | "") |
| 178 | #define FUNC_NAME s_scm_sys_init_layout_x |
| 179 | { |
| 180 | SCM_VALIDATE_INSTANCE (1, class); |
| 181 | SCM_ASSERT (!scm_is_symbol (SCM_VTABLE_LAYOUT (class)), class, 1, FUNC_NAME); |
| 182 | SCM_VALIDATE_STRING (2, layout); |
| 183 | |
| 184 | SCM_SET_VTABLE_LAYOUT (class, scm_make_struct_layout (layout)); |
| 185 | scm_i_struct_inherit_vtable_magic (SCM_CLASS_OF (class), class); |
| 186 | SCM_SET_CLASS_FLAGS (class, SCM_CLASSF_GOOPS_OR_VALID); |
| 187 | |
| 188 | return SCM_UNSPECIFIED; |
| 189 | } |
| 190 | #undef FUNC_NAME |
| 191 | |
| 192 | |
| 193 | \f |
| 194 | |
| 195 | /* This function is used for efficient type dispatch. */ |
| 196 | SCM_DEFINE (scm_class_of, "class-of", 1, 0, 0, |
| 197 | (SCM x), |
| 198 | "Return the class of @var{x}.") |
| 199 | #define FUNC_NAME s_scm_class_of |
| 200 | { |
| 201 | switch (SCM_ITAG3 (x)) |
| 202 | { |
| 203 | case scm_tc3_int_1: |
| 204 | case scm_tc3_int_2: |
| 205 | return class_integer; |
| 206 | |
| 207 | case scm_tc3_imm24: |
| 208 | if (SCM_CHARP (x)) |
| 209 | return class_char; |
| 210 | else if (scm_is_bool (x)) |
| 211 | return class_boolean; |
| 212 | else if (scm_is_null (x)) |
| 213 | return class_null; |
| 214 | else |
| 215 | return class_unknown; |
| 216 | |
| 217 | case scm_tc3_cons: |
| 218 | switch (SCM_TYP7 (x)) |
| 219 | { |
| 220 | case scm_tcs_cons_nimcar: |
| 221 | return class_pair; |
| 222 | case scm_tc7_symbol: |
| 223 | return class_symbol; |
| 224 | case scm_tc7_vector: |
| 225 | case scm_tc7_wvect: |
| 226 | return class_vector; |
| 227 | case scm_tc7_pointer: |
| 228 | return class_foreign; |
| 229 | case scm_tc7_hashtable: |
| 230 | return class_hashtable; |
| 231 | case scm_tc7_fluid: |
| 232 | return class_fluid; |
| 233 | case scm_tc7_dynamic_state: |
| 234 | return class_dynamic_state; |
| 235 | case scm_tc7_frame: |
| 236 | return class_frame; |
| 237 | case scm_tc7_keyword: |
| 238 | return class_keyword; |
| 239 | case scm_tc7_vm_cont: |
| 240 | return class_vm_cont; |
| 241 | case scm_tc7_bytevector: |
| 242 | if (SCM_BYTEVECTOR_ELEMENT_TYPE (x) == SCM_ARRAY_ELEMENT_TYPE_VU8) |
| 243 | return class_bytevector; |
| 244 | else |
| 245 | return class_uvec; |
| 246 | case scm_tc7_array: |
| 247 | return class_array; |
| 248 | case scm_tc7_bitvector: |
| 249 | return class_bitvector; |
| 250 | case scm_tc7_string: |
| 251 | return class_string; |
| 252 | case scm_tc7_number: |
| 253 | switch SCM_TYP16 (x) { |
| 254 | case scm_tc16_big: |
| 255 | return class_integer; |
| 256 | case scm_tc16_real: |
| 257 | return class_real; |
| 258 | case scm_tc16_complex: |
| 259 | return class_complex; |
| 260 | case scm_tc16_fraction: |
| 261 | return class_fraction; |
| 262 | } |
| 263 | case scm_tc7_program: |
| 264 | if (SCM_PROGRAM_IS_PRIMITIVE_GENERIC (x) |
| 265 | && SCM_UNPACK (*SCM_SUBR_GENERIC (x))) |
| 266 | return class_primitive_generic; |
| 267 | else |
| 268 | return class_procedure; |
| 269 | |
| 270 | case scm_tc7_smob: |
| 271 | { |
| 272 | scm_t_bits type = SCM_TYP16 (x); |
| 273 | if (type != scm_tc16_port_with_ps) |
| 274 | return scm_i_smob_class[SCM_TC2SMOBNUM (type)]; |
| 275 | x = SCM_PORT_WITH_PS_PORT (x); |
| 276 | /* fall through to ports */ |
| 277 | } |
| 278 | case scm_tc7_port: |
| 279 | return scm_i_port_class[(SCM_WRTNG & SCM_CELL_WORD_0 (x) |
| 280 | ? (SCM_RDNG & SCM_CELL_WORD_0 (x) |
| 281 | ? SCM_INOUT_PCLASS_INDEX | SCM_PTOBNUM (x) |
| 282 | : SCM_OUT_PCLASS_INDEX | SCM_PTOBNUM (x)) |
| 283 | : SCM_IN_PCLASS_INDEX | SCM_PTOBNUM (x))]; |
| 284 | case scm_tcs_struct: |
| 285 | if (SCM_OBJ_CLASS_FLAGS (x) & SCM_CLASSF_GOOPS_VALID) |
| 286 | /* A GOOPS object with a valid class. */ |
| 287 | return SCM_CLASS_OF (x); |
| 288 | else if (SCM_OBJ_CLASS_FLAGS (x) & SCM_CLASSF_GOOPS) |
| 289 | /* A GOOPS object whose class might have been redefined. */ |
| 290 | { |
| 291 | SCM class = SCM_CLASS_OF (x); |
| 292 | SCM new_class = scm_slot_ref (class, sym_redefined); |
| 293 | if (!scm_is_false (new_class)) |
| 294 | scm_change_object_class (x, class, new_class); |
| 295 | /* Re-load class from instance. */ |
| 296 | return SCM_CLASS_OF (x); |
| 297 | } |
| 298 | else |
| 299 | return scm_i_define_class_for_vtable (SCM_CLASS_OF (x)); |
| 300 | default: |
| 301 | if (scm_is_pair (x)) |
| 302 | return class_pair; |
| 303 | else |
| 304 | return class_unknown; |
| 305 | } |
| 306 | |
| 307 | case scm_tc3_struct: |
| 308 | case scm_tc3_tc7_1: |
| 309 | case scm_tc3_tc7_2: |
| 310 | /* case scm_tc3_unused: */ |
| 311 | /* Never reached */ |
| 312 | break; |
| 313 | } |
| 314 | return class_unknown; |
| 315 | } |
| 316 | #undef FUNC_NAME |
| 317 | |
| 318 | |
| 319 | \f |
| 320 | |
| 321 | SCM_DEFINE (scm_instance_p, "instance?", 1, 0, 0, |
| 322 | (SCM obj), |
| 323 | "Return @code{#t} if @var{obj} is an instance.") |
| 324 | #define FUNC_NAME s_scm_instance_p |
| 325 | { |
| 326 | return scm_from_bool (SCM_INSTANCEP (obj)); |
| 327 | } |
| 328 | #undef FUNC_NAME |
| 329 | |
| 330 | int |
| 331 | scm_is_generic (SCM x) |
| 332 | { |
| 333 | return SCM_INSTANCEP (x) && SCM_SUBCLASSP (SCM_CLASS_OF (x), class_generic); |
| 334 | } |
| 335 | |
| 336 | int |
| 337 | scm_is_method (SCM x) |
| 338 | { |
| 339 | return SCM_INSTANCEP (x) && SCM_SUBCLASSP (SCM_CLASS_OF (x), class_method); |
| 340 | } |
| 341 | |
| 342 | |
| 343 | \f |
| 344 | |
| 345 | SCM |
| 346 | scm_class_name (SCM obj) |
| 347 | { |
| 348 | return scm_call_1 (scm_variable_ref (var_class_name), obj); |
| 349 | } |
| 350 | |
| 351 | SCM |
| 352 | scm_class_direct_supers (SCM obj) |
| 353 | { |
| 354 | return scm_call_1 (scm_variable_ref (var_class_direct_supers), obj); |
| 355 | } |
| 356 | |
| 357 | SCM |
| 358 | scm_class_direct_slots (SCM obj) |
| 359 | { |
| 360 | return scm_call_1 (scm_variable_ref (var_class_direct_slots), obj); |
| 361 | } |
| 362 | |
| 363 | SCM |
| 364 | scm_class_direct_subclasses (SCM obj) |
| 365 | { |
| 366 | return scm_call_1 (scm_variable_ref (var_class_direct_subclasses), obj); |
| 367 | } |
| 368 | |
| 369 | SCM |
| 370 | scm_class_direct_methods (SCM obj) |
| 371 | { |
| 372 | return scm_call_1 (scm_variable_ref (var_class_direct_methods), obj); |
| 373 | } |
| 374 | |
| 375 | SCM |
| 376 | scm_class_precedence_list (SCM obj) |
| 377 | { |
| 378 | return scm_call_1 (scm_variable_ref (var_class_precedence_list), obj); |
| 379 | } |
| 380 | |
| 381 | SCM |
| 382 | scm_class_slots (SCM obj) |
| 383 | { |
| 384 | return scm_call_1 (scm_variable_ref (var_class_slots), obj); |
| 385 | } |
| 386 | |
| 387 | |
| 388 | \f |
| 389 | |
| 390 | SCM_DEFINE (scm_generic_function_name, "generic-function-name", 1, 0, 0, |
| 391 | (SCM obj), |
| 392 | "Return the name of the generic function @var{obj}.") |
| 393 | #define FUNC_NAME s_scm_generic_function_name |
| 394 | { |
| 395 | SCM_VALIDATE_GENERIC (1, obj); |
| 396 | return scm_procedure_property (obj, scm_sym_name); |
| 397 | } |
| 398 | #undef FUNC_NAME |
| 399 | |
| 400 | SCM |
| 401 | scm_generic_function_methods (SCM obj) |
| 402 | { |
| 403 | return scm_call_1 (scm_variable_ref (var_generic_function_methods), obj); |
| 404 | } |
| 405 | |
| 406 | SCM |
| 407 | scm_method_generic_function (SCM obj) |
| 408 | { |
| 409 | return scm_call_1 (scm_variable_ref (var_method_generic_function), obj); |
| 410 | } |
| 411 | |
| 412 | SCM |
| 413 | scm_method_specializers (SCM obj) |
| 414 | { |
| 415 | return scm_call_1 (scm_variable_ref (var_method_specializers), obj); |
| 416 | } |
| 417 | |
| 418 | SCM |
| 419 | scm_method_procedure (SCM obj) |
| 420 | { |
| 421 | return scm_call_1 (scm_variable_ref (var_method_procedure), obj); |
| 422 | } |
| 423 | |
| 424 | |
| 425 | \f |
| 426 | |
| 427 | SCM |
| 428 | scm_slot_ref (SCM obj, SCM slot_name) |
| 429 | { |
| 430 | return scm_call_2 (scm_variable_ref (var_slot_ref), obj, slot_name); |
| 431 | } |
| 432 | |
| 433 | SCM |
| 434 | scm_slot_set_x (SCM obj, SCM slot_name, SCM value) |
| 435 | { |
| 436 | return scm_call_3 (scm_variable_ref (var_slot_set_x), obj, slot_name, value); |
| 437 | } |
| 438 | |
| 439 | SCM |
| 440 | scm_slot_bound_p (SCM obj, SCM slot_name) |
| 441 | { |
| 442 | return scm_call_2 (scm_variable_ref (var_slot_bound_p), obj, slot_name); |
| 443 | } |
| 444 | |
| 445 | SCM |
| 446 | scm_slot_exists_p (SCM obj, SCM slot_name) |
| 447 | { |
| 448 | return scm_call_2 (scm_variable_ref (var_slot_exists_p), obj, slot_name); |
| 449 | } |
| 450 | |
| 451 | |
| 452 | \f |
| 453 | |
| 454 | SCM_DEFINE (scm_sys_clear_fields_x, "%clear-fields!", 2, 0, 0, |
| 455 | (SCM obj, SCM unbound), |
| 456 | "") |
| 457 | #define FUNC_NAME s_scm_sys_clear_fields_x |
| 458 | { |
| 459 | scm_t_signed_bits n, i; |
| 460 | SCM vtable, layout; |
| 461 | |
| 462 | SCM_VALIDATE_STRUCT (1, obj); |
| 463 | vtable = SCM_STRUCT_VTABLE (obj); |
| 464 | |
| 465 | n = SCM_STRUCT_DATA_REF (vtable, scm_vtable_index_size); |
| 466 | layout = SCM_VTABLE_LAYOUT (vtable); |
| 467 | |
| 468 | /* Set all SCM-holding slots to the GOOPS unbound value. */ |
| 469 | for (i = 0; i < n; i++) |
| 470 | if (scm_i_symbol_ref (layout, i*2) == 'p') |
| 471 | SCM_STRUCT_SLOT_SET (obj, i, unbound); |
| 472 | |
| 473 | return SCM_UNSPECIFIED; |
| 474 | } |
| 475 | #undef FUNC_NAME |
| 476 | |
| 477 | |
| 478 | \f |
| 479 | |
| 480 | SCM_DEFINE (scm_sys_modify_instance, "%modify-instance", 2, 0, 0, |
| 481 | (SCM old, SCM new), |
| 482 | "Used by change-class to modify objects in place.") |
| 483 | #define FUNC_NAME s_scm_sys_modify_instance |
| 484 | { |
| 485 | SCM_VALIDATE_INSTANCE (1, old); |
| 486 | SCM_VALIDATE_INSTANCE (2, new); |
| 487 | |
| 488 | /* Exchange the data contained in old and new. We exchange rather than |
| 489 | * scratch the old value with new to be correct with GC. |
| 490 | * See "Class redefinition protocol above". |
| 491 | */ |
| 492 | SCM_CRITICAL_SECTION_START; |
| 493 | { |
| 494 | scm_t_bits word0, word1; |
| 495 | word0 = SCM_CELL_WORD_0 (old); |
| 496 | word1 = SCM_CELL_WORD_1 (old); |
| 497 | SCM_SET_CELL_WORD_0 (old, SCM_CELL_WORD_0 (new)); |
| 498 | SCM_SET_CELL_WORD_1 (old, SCM_CELL_WORD_1 (new)); |
| 499 | SCM_SET_CELL_WORD_0 (new, word0); |
| 500 | SCM_SET_CELL_WORD_1 (new, word1); |
| 501 | } |
| 502 | SCM_CRITICAL_SECTION_END; |
| 503 | return SCM_UNSPECIFIED; |
| 504 | } |
| 505 | #undef FUNC_NAME |
| 506 | |
| 507 | SCM_DEFINE (scm_sys_modify_class, "%modify-class", 2, 0, 0, |
| 508 | (SCM old, SCM new), |
| 509 | "") |
| 510 | #define FUNC_NAME s_scm_sys_modify_class |
| 511 | { |
| 512 | SCM_VALIDATE_CLASS (1, old); |
| 513 | SCM_VALIDATE_CLASS (2, new); |
| 514 | |
| 515 | SCM_CRITICAL_SECTION_START; |
| 516 | { |
| 517 | scm_t_bits word0, word1; |
| 518 | word0 = SCM_CELL_WORD_0 (old); |
| 519 | word1 = SCM_CELL_WORD_1 (old); |
| 520 | SCM_SET_CELL_WORD_0 (old, SCM_CELL_WORD_0 (new)); |
| 521 | SCM_SET_CELL_WORD_1 (old, SCM_CELL_WORD_1 (new)); |
| 522 | SCM_STRUCT_DATA (old)[scm_vtable_index_self] = SCM_UNPACK (old); |
| 523 | SCM_SET_CELL_WORD_0 (new, word0); |
| 524 | SCM_SET_CELL_WORD_1 (new, word1); |
| 525 | SCM_STRUCT_DATA (new)[scm_vtable_index_self] = SCM_UNPACK (new); |
| 526 | } |
| 527 | SCM_CRITICAL_SECTION_END; |
| 528 | return SCM_UNSPECIFIED; |
| 529 | } |
| 530 | #undef FUNC_NAME |
| 531 | |
| 532 | /* When instances change class, they finally get a new body, but |
| 533 | * before that, they go through purgatory in hell. Odd as it may |
| 534 | * seem, this data structure saves us from eternal suffering in |
| 535 | * infinite recursions. |
| 536 | */ |
| 537 | |
| 538 | static scm_t_bits **hell; |
| 539 | static long n_hell = 1; /* one place for the evil one himself */ |
| 540 | static long hell_size = 4; |
| 541 | static SCM hell_mutex; |
| 542 | |
| 543 | static long |
| 544 | burnin (SCM o) |
| 545 | { |
| 546 | long i; |
| 547 | for (i = 1; i < n_hell; ++i) |
| 548 | if (SCM_STRUCT_DATA (o) == hell[i]) |
| 549 | return i; |
| 550 | return 0; |
| 551 | } |
| 552 | |
| 553 | static void |
| 554 | go_to_hell (void *o) |
| 555 | { |
| 556 | SCM obj = *(SCM*)o; |
| 557 | scm_lock_mutex (hell_mutex); |
| 558 | if (n_hell >= hell_size) |
| 559 | { |
| 560 | hell_size *= 2; |
| 561 | hell = scm_realloc (hell, hell_size * sizeof(*hell)); |
| 562 | } |
| 563 | hell[n_hell++] = SCM_STRUCT_DATA (obj); |
| 564 | scm_unlock_mutex (hell_mutex); |
| 565 | } |
| 566 | |
| 567 | static void |
| 568 | go_to_heaven (void *o) |
| 569 | { |
| 570 | SCM obj = *(SCM*)o; |
| 571 | scm_lock_mutex (hell_mutex); |
| 572 | hell[burnin (obj)] = hell[--n_hell]; |
| 573 | scm_unlock_mutex (hell_mutex); |
| 574 | } |
| 575 | |
| 576 | |
| 577 | static SCM |
| 578 | purgatory (SCM obj, SCM new_class) |
| 579 | { |
| 580 | return scm_call_2 (SCM_VARIABLE_REF (var_change_class), obj, new_class); |
| 581 | } |
| 582 | |
| 583 | /* This function calls the generic function change-class for all |
| 584 | * instances which aren't currently undergoing class change. |
| 585 | */ |
| 586 | |
| 587 | void |
| 588 | scm_change_object_class (SCM obj, SCM old_class SCM_UNUSED, SCM new_class) |
| 589 | { |
| 590 | if (!burnin (obj)) |
| 591 | { |
| 592 | scm_dynwind_begin (SCM_F_DYNWIND_REWINDABLE); |
| 593 | scm_dynwind_rewind_handler (go_to_hell, &obj, SCM_F_WIND_EXPLICITLY); |
| 594 | scm_dynwind_unwind_handler (go_to_heaven, &obj, SCM_F_WIND_EXPLICITLY); |
| 595 | purgatory (obj, new_class); |
| 596 | scm_dynwind_end (); |
| 597 | } |
| 598 | } |
| 599 | |
| 600 | |
| 601 | \f |
| 602 | |
| 603 | /* Primitive generics: primitives that can dispatch to generics if their |
| 604 | arguments fail to apply. */ |
| 605 | |
| 606 | SCM_DEFINE (scm_generic_capability_p, "generic-capability?", 1, 0, 0, |
| 607 | (SCM proc), |
| 608 | "") |
| 609 | #define FUNC_NAME s_scm_generic_capability_p |
| 610 | { |
| 611 | SCM_ASSERT (scm_is_true (scm_procedure_p (proc)), |
| 612 | proc, SCM_ARG1, FUNC_NAME); |
| 613 | return (SCM_PRIMITIVE_GENERIC_P (proc) ? SCM_BOOL_T : SCM_BOOL_F); |
| 614 | } |
| 615 | #undef FUNC_NAME |
| 616 | |
| 617 | SCM_DEFINE (scm_enable_primitive_generic_x, "enable-primitive-generic!", 0, 0, 1, |
| 618 | (SCM subrs), |
| 619 | "") |
| 620 | #define FUNC_NAME s_scm_enable_primitive_generic_x |
| 621 | { |
| 622 | SCM_VALIDATE_REST_ARGUMENT (subrs); |
| 623 | while (!scm_is_null (subrs)) |
| 624 | { |
| 625 | SCM subr = SCM_CAR (subrs); |
| 626 | SCM_ASSERT (SCM_PRIMITIVE_GENERIC_P (subr), subr, SCM_ARGn, FUNC_NAME); |
| 627 | SCM_SET_SUBR_GENERIC (subr, |
| 628 | scm_make (scm_list_3 (class_generic, |
| 629 | k_name, |
| 630 | SCM_SUBR_NAME (subr)))); |
| 631 | subrs = SCM_CDR (subrs); |
| 632 | } |
| 633 | return SCM_UNSPECIFIED; |
| 634 | } |
| 635 | #undef FUNC_NAME |
| 636 | |
| 637 | SCM_DEFINE (scm_set_primitive_generic_x, "set-primitive-generic!", 2, 0, 0, |
| 638 | (SCM subr, SCM generic), |
| 639 | "") |
| 640 | #define FUNC_NAME s_scm_set_primitive_generic_x |
| 641 | { |
| 642 | SCM_ASSERT (SCM_PRIMITIVE_GENERIC_P (subr), subr, SCM_ARG1, FUNC_NAME); |
| 643 | SCM_ASSERT (SCM_GENERICP (generic), generic, SCM_ARG2, FUNC_NAME); |
| 644 | SCM_SET_SUBR_GENERIC (subr, generic); |
| 645 | return SCM_UNSPECIFIED; |
| 646 | } |
| 647 | #undef FUNC_NAME |
| 648 | |
| 649 | SCM_DEFINE (scm_primitive_generic_generic, "primitive-generic-generic", 1, 0, 0, |
| 650 | (SCM subr), |
| 651 | "") |
| 652 | #define FUNC_NAME s_scm_primitive_generic_generic |
| 653 | { |
| 654 | if (SCM_PRIMITIVE_GENERIC_P (subr)) |
| 655 | { |
| 656 | if (!SCM_UNPACK (*SCM_SUBR_GENERIC (subr))) |
| 657 | scm_enable_primitive_generic_x (scm_list_1 (subr)); |
| 658 | return *SCM_SUBR_GENERIC (subr); |
| 659 | } |
| 660 | SCM_WRONG_TYPE_ARG (SCM_ARG1, subr); |
| 661 | } |
| 662 | #undef FUNC_NAME |
| 663 | |
| 664 | SCM |
| 665 | scm_wta_dispatch_0 (SCM gf, const char *subr) |
| 666 | { |
| 667 | if (!SCM_UNPACK (gf)) |
| 668 | scm_error_num_args_subr (subr); |
| 669 | |
| 670 | return scm_call_0 (gf); |
| 671 | } |
| 672 | |
| 673 | SCM |
| 674 | scm_wta_dispatch_1 (SCM gf, SCM a1, int pos, const char *subr) |
| 675 | { |
| 676 | if (!SCM_UNPACK (gf)) |
| 677 | scm_wrong_type_arg (subr, pos, a1); |
| 678 | |
| 679 | return scm_call_1 (gf, a1); |
| 680 | } |
| 681 | |
| 682 | SCM |
| 683 | scm_wta_dispatch_2 (SCM gf, SCM a1, SCM a2, int pos, const char *subr) |
| 684 | { |
| 685 | if (!SCM_UNPACK (gf)) |
| 686 | scm_wrong_type_arg (subr, pos, (pos == SCM_ARG1) ? a1 : a2); |
| 687 | |
| 688 | return scm_call_2 (gf, a1, a2); |
| 689 | } |
| 690 | |
| 691 | SCM |
| 692 | scm_wta_dispatch_n (SCM gf, SCM args, int pos, const char *subr) |
| 693 | { |
| 694 | if (!SCM_UNPACK (gf)) |
| 695 | scm_wrong_type_arg (subr, pos, scm_list_ref (args, scm_from_int (pos))); |
| 696 | |
| 697 | return scm_apply_0 (gf, args); |
| 698 | } |
| 699 | |
| 700 | |
| 701 | \f |
| 702 | |
| 703 | SCM |
| 704 | scm_make (SCM args) |
| 705 | { |
| 706 | return scm_apply_0 (scm_variable_ref (var_make), args); |
| 707 | } |
| 708 | |
| 709 | |
| 710 | \f |
| 711 | |
| 712 | /* SMOB, struct, and port classes. */ |
| 713 | |
| 714 | static SCM |
| 715 | make_class_name (const char *prefix, const char *type_name, const char *suffix) |
| 716 | { |
| 717 | if (!type_name) |
| 718 | type_name = ""; |
| 719 | return scm_string_to_symbol (scm_string_append |
| 720 | (scm_list_3 (scm_from_utf8_string (prefix), |
| 721 | scm_from_utf8_string (type_name), |
| 722 | scm_from_utf8_string (suffix)))); |
| 723 | } |
| 724 | |
| 725 | SCM |
| 726 | scm_make_extended_class (char const *type_name, int applicablep) |
| 727 | { |
| 728 | SCM name, meta, supers; |
| 729 | |
| 730 | name = make_class_name ("<", type_name, ">"); |
| 731 | meta = class_class; |
| 732 | |
| 733 | if (applicablep) |
| 734 | supers = scm_list_1 (class_applicable); |
| 735 | else |
| 736 | supers = scm_list_1 (class_top); |
| 737 | |
| 738 | return scm_make_standard_class (meta, name, supers, SCM_EOL); |
| 739 | } |
| 740 | |
| 741 | void |
| 742 | scm_i_inherit_applicable (SCM c) |
| 743 | { |
| 744 | scm_call_1 (scm_variable_ref (var_inherit_applicable), c); |
| 745 | } |
| 746 | |
| 747 | static void |
| 748 | create_smob_classes (void) |
| 749 | { |
| 750 | long i; |
| 751 | |
| 752 | for (i = 0; i < SCM_I_MAX_SMOB_TYPE_COUNT; ++i) |
| 753 | scm_i_smob_class[i] = SCM_BOOL_F; |
| 754 | |
| 755 | for (i = 0; i < scm_numsmob; ++i) |
| 756 | if (scm_is_false (scm_i_smob_class[i])) |
| 757 | scm_i_smob_class[i] = scm_make_extended_class (SCM_SMOBNAME (i), |
| 758 | scm_smobs[i].apply != 0); |
| 759 | } |
| 760 | |
| 761 | void |
| 762 | scm_make_port_classes (long ptobnum, char *type_name) |
| 763 | { |
| 764 | SCM name, meta, super, supers; |
| 765 | |
| 766 | meta = class_class; |
| 767 | |
| 768 | name = make_class_name ("<", type_name, "-port>"); |
| 769 | supers = scm_list_1 (class_port); |
| 770 | super = scm_make_standard_class (meta, name, supers, SCM_EOL); |
| 771 | |
| 772 | name = make_class_name ("<", type_name, "-input-port>"); |
| 773 | supers = scm_list_2 (super, class_input_port); |
| 774 | scm_i_port_class[SCM_IN_PCLASS_INDEX + ptobnum] |
| 775 | = scm_make_standard_class (meta, name, supers, SCM_EOL); |
| 776 | |
| 777 | name = make_class_name ("<", type_name, "-output-port>"); |
| 778 | supers = scm_list_2 (super, class_output_port); |
| 779 | scm_i_port_class[SCM_OUT_PCLASS_INDEX + ptobnum] |
| 780 | = scm_make_standard_class (meta, name, supers, SCM_EOL); |
| 781 | |
| 782 | name = make_class_name ("<", type_name, "-input-output-port>"); |
| 783 | supers = scm_list_2 (super, class_input_output_port); |
| 784 | scm_i_port_class[SCM_INOUT_PCLASS_INDEX + ptobnum] |
| 785 | = scm_make_standard_class (meta, name, supers, SCM_EOL); |
| 786 | } |
| 787 | |
| 788 | static void |
| 789 | create_port_classes (void) |
| 790 | { |
| 791 | long i; |
| 792 | |
| 793 | for (i = scm_c_num_port_types () - 1; i >= 0; i--) |
| 794 | scm_make_port_classes (i, SCM_PTOBNAME (i)); |
| 795 | } |
| 796 | |
| 797 | SCM |
| 798 | scm_i_define_class_for_vtable (SCM vtable) |
| 799 | { |
| 800 | SCM class; |
| 801 | |
| 802 | scm_i_pthread_mutex_lock (&scm_i_misc_mutex); |
| 803 | if (scm_is_false (vtable_class_map)) |
| 804 | vtable_class_map = scm_c_make_weak_table (0, SCM_WEAK_TABLE_KIND_KEY); |
| 805 | scm_i_pthread_mutex_unlock (&scm_i_misc_mutex); |
| 806 | |
| 807 | if (scm_is_false (scm_struct_vtable_p (vtable))) |
| 808 | abort (); |
| 809 | |
| 810 | class = scm_weak_table_refq (vtable_class_map, vtable, SCM_BOOL_F); |
| 811 | |
| 812 | if (scm_is_false (class)) |
| 813 | { |
| 814 | if (SCM_UNPACK (class_class)) |
| 815 | { |
| 816 | SCM name, meta, supers; |
| 817 | |
| 818 | name = SCM_VTABLE_NAME (vtable); |
| 819 | if (scm_is_symbol (name)) |
| 820 | name = scm_string_to_symbol |
| 821 | (scm_string_append |
| 822 | (scm_list_3 (scm_from_latin1_string ("<"), |
| 823 | scm_symbol_to_string (name), |
| 824 | scm_from_latin1_string (">")))); |
| 825 | else |
| 826 | name = scm_from_latin1_symbol ("<>"); |
| 827 | |
| 828 | if (SCM_STRUCT_VTABLE_FLAG_IS_SET (vtable, SCM_VTABLE_FLAG_SETTER)) |
| 829 | { |
| 830 | meta = class_applicable_struct_with_setter_class; |
| 831 | supers = scm_list_1 (class_applicable_struct_with_setter); |
| 832 | } |
| 833 | else if (SCM_STRUCT_VTABLE_FLAG_IS_SET (vtable, |
| 834 | SCM_VTABLE_FLAG_APPLICABLE)) |
| 835 | { |
| 836 | meta = class_applicable_struct_class; |
| 837 | supers = scm_list_1 (class_applicable_struct); |
| 838 | } |
| 839 | else |
| 840 | { |
| 841 | meta = class_class; |
| 842 | supers = scm_list_1 (class_top); |
| 843 | } |
| 844 | |
| 845 | return scm_make_standard_class (meta, name, supers, SCM_EOL); |
| 846 | } |
| 847 | else |
| 848 | /* `create_struct_classes' will fill this in later. */ |
| 849 | class = SCM_BOOL_F; |
| 850 | |
| 851 | /* Don't worry about races. This only happens when creating a |
| 852 | vtable, which happens by definition in one thread. */ |
| 853 | scm_weak_table_putq_x (vtable_class_map, vtable, class); |
| 854 | } |
| 855 | |
| 856 | return class; |
| 857 | } |
| 858 | |
| 859 | static SCM |
| 860 | make_struct_class (void *closure SCM_UNUSED, |
| 861 | SCM vtable, SCM data, SCM prev SCM_UNUSED) |
| 862 | { |
| 863 | if (scm_is_false (data)) |
| 864 | scm_i_define_class_for_vtable (vtable); |
| 865 | return SCM_UNSPECIFIED; |
| 866 | } |
| 867 | |
| 868 | static void |
| 869 | create_struct_classes (void) |
| 870 | { |
| 871 | /* FIXME: take the vtable_class_map while initializing goops? */ |
| 872 | scm_internal_hash_fold (make_struct_class, 0, SCM_BOOL_F, |
| 873 | vtable_class_map); |
| 874 | } |
| 875 | |
| 876 | |
| 877 | \f |
| 878 | |
| 879 | void |
| 880 | scm_load_goops () |
| 881 | { |
| 882 | if (!goops_loaded_p) |
| 883 | scm_c_resolve_module ("oop goops"); |
| 884 | } |
| 885 | |
| 886 | SCM |
| 887 | scm_ensure_accessor (SCM name) |
| 888 | { |
| 889 | SCM var, gf; |
| 890 | |
| 891 | var = scm_module_variable (scm_current_module (), name); |
| 892 | if (SCM_VARIABLEP (var) && !SCM_UNBNDP (SCM_VARIABLE_REF (var))) |
| 893 | gf = SCM_VARIABLE_REF (var); |
| 894 | else |
| 895 | gf = SCM_BOOL_F; |
| 896 | |
| 897 | if (!SCM_IS_A_P (gf, class_accessor)) |
| 898 | { |
| 899 | gf = scm_make (scm_list_3 (class_generic, k_name, name)); |
| 900 | gf = scm_make (scm_list_5 (class_accessor, |
| 901 | k_name, name, k_setter, gf)); |
| 902 | } |
| 903 | |
| 904 | return gf; |
| 905 | } |
| 906 | |
| 907 | |
| 908 | \f |
| 909 | |
| 910 | SCM_DEFINE (scm_sys_goops_early_init, "%goops-early-init", 0, 0, 0, |
| 911 | (), |
| 912 | "") |
| 913 | #define FUNC_NAME s_scm_sys_goops_early_init |
| 914 | { |
| 915 | var_make_standard_class = scm_c_lookup ("make-standard-class"); |
| 916 | var_make = scm_c_lookup ("make"); |
| 917 | var_inherit_applicable = scm_c_lookup ("inherit-applicable!"); |
| 918 | |
| 919 | /* For SCM_SUBCLASSP. */ |
| 920 | var_class_precedence_list = scm_c_lookup ("class-precedence-list"); |
| 921 | |
| 922 | var_slot_ref = scm_c_lookup ("slot-ref"); |
| 923 | var_slot_set_x = scm_c_lookup ("slot-set!"); |
| 924 | var_slot_bound_p = scm_c_lookup ("slot-bound?"); |
| 925 | var_slot_exists_p = scm_c_lookup ("slot-exists?"); |
| 926 | |
| 927 | class_class = scm_variable_ref (scm_c_lookup ("<class>")); |
| 928 | class_top = scm_variable_ref (scm_c_lookup ("<top>")); |
| 929 | class_object = scm_variable_ref (scm_c_lookup ("<object>")); |
| 930 | |
| 931 | class_foreign_slot = scm_variable_ref (scm_c_lookup ("<foreign-slot>")); |
| 932 | class_protected = scm_variable_ref (scm_c_lookup ("<protected-slot>")); |
| 933 | class_hidden = scm_variable_ref (scm_c_lookup ("<hidden-slot>")); |
| 934 | class_opaque = scm_variable_ref (scm_c_lookup ("<opaque-slot>")); |
| 935 | class_read_only = scm_variable_ref (scm_c_lookup ("<read-only-slot>")); |
| 936 | class_self = scm_variable_ref (scm_c_lookup ("<self-slot>")); |
| 937 | class_protected_opaque = scm_variable_ref (scm_c_lookup ("<protected-opaque-slot>")); |
| 938 | class_protected_hidden = scm_variable_ref (scm_c_lookup ("<protected-hidden-slot>")); |
| 939 | class_protected_read_only = scm_variable_ref (scm_c_lookup ("<protected-read-only-slot>")); |
| 940 | class_scm = scm_variable_ref (scm_c_lookup ("<scm-slot>")); |
| 941 | class_int = scm_variable_ref (scm_c_lookup ("<int-slot>")); |
| 942 | class_float = scm_variable_ref (scm_c_lookup ("<float-slot>")); |
| 943 | class_double = scm_variable_ref (scm_c_lookup ("<double-slot>")); |
| 944 | |
| 945 | /* Applicables */ |
| 946 | class_procedure_class = scm_variable_ref (scm_c_lookup ("<procedure-class>")); |
| 947 | class_applicable_struct_class = scm_variable_ref (scm_c_lookup ("<applicable-struct-class>")); |
| 948 | class_applicable_struct_with_setter_class = |
| 949 | scm_variable_ref (scm_c_lookup ("<applicable-struct-with-setter-class>")); |
| 950 | |
| 951 | class_method = scm_variable_ref (scm_c_lookup ("<method>")); |
| 952 | class_accessor_method = scm_variable_ref (scm_c_lookup ("<accessor-method>")); |
| 953 | class_applicable = scm_variable_ref (scm_c_lookup ("<applicable>")); |
| 954 | class_applicable_struct = scm_variable_ref (scm_c_lookup ("<applicable-struct>")); |
| 955 | class_applicable_struct_with_setter = scm_variable_ref (scm_c_lookup ("<applicable-struct-with-setter>")); |
| 956 | class_generic = scm_variable_ref (scm_c_lookup ("<generic>")); |
| 957 | class_extended_generic = scm_variable_ref (scm_c_lookup ("<extended-generic>")); |
| 958 | class_generic_with_setter = scm_variable_ref (scm_c_lookup ("<generic-with-setter>")); |
| 959 | class_accessor = scm_variable_ref (scm_c_lookup ("<accessor>")); |
| 960 | class_extended_generic_with_setter = scm_variable_ref (scm_c_lookup ("<extended-generic-with-setter>")); |
| 961 | class_extended_accessor = scm_variable_ref (scm_c_lookup ("<extended-accessor>")); |
| 962 | |
| 963 | /* Primitive types classes */ |
| 964 | class_boolean = scm_variable_ref (scm_c_lookup ("<boolean>")); |
| 965 | class_char = scm_variable_ref (scm_c_lookup ("<char>")); |
| 966 | class_list = scm_variable_ref (scm_c_lookup ("<list>")); |
| 967 | class_pair = scm_variable_ref (scm_c_lookup ("<pair>")); |
| 968 | class_null = scm_variable_ref (scm_c_lookup ("<null>")); |
| 969 | class_string = scm_variable_ref (scm_c_lookup ("<string>")); |
| 970 | class_symbol = scm_variable_ref (scm_c_lookup ("<symbol>")); |
| 971 | class_vector = scm_variable_ref (scm_c_lookup ("<vector>")); |
| 972 | class_foreign = scm_variable_ref (scm_c_lookup ("<foreign>")); |
| 973 | class_hashtable = scm_variable_ref (scm_c_lookup ("<hashtable>")); |
| 974 | class_fluid = scm_variable_ref (scm_c_lookup ("<fluid>")); |
| 975 | class_dynamic_state = scm_variable_ref (scm_c_lookup ("<dynamic-state>")); |
| 976 | class_frame = scm_variable_ref (scm_c_lookup ("<frame>")); |
| 977 | class_keyword = scm_variable_ref (scm_c_lookup ("<keyword>")); |
| 978 | class_vm_cont = scm_variable_ref (scm_c_lookup ("<vm-continuation>")); |
| 979 | class_bytevector = scm_variable_ref (scm_c_lookup ("<bytevector>")); |
| 980 | class_uvec = scm_variable_ref (scm_c_lookup ("<uvec>")); |
| 981 | class_array = scm_variable_ref (scm_c_lookup ("<array>")); |
| 982 | class_bitvector = scm_variable_ref (scm_c_lookup ("<bitvector>")); |
| 983 | class_number = scm_variable_ref (scm_c_lookup ("<number>")); |
| 984 | class_complex = scm_variable_ref (scm_c_lookup ("<complex>")); |
| 985 | class_real = scm_variable_ref (scm_c_lookup ("<real>")); |
| 986 | class_integer = scm_variable_ref (scm_c_lookup ("<integer>")); |
| 987 | class_fraction = scm_variable_ref (scm_c_lookup ("<fraction>")); |
| 988 | class_keyword = scm_variable_ref (scm_c_lookup ("<keyword>")); |
| 989 | class_unknown = scm_variable_ref (scm_c_lookup ("<unknown>")); |
| 990 | class_procedure = scm_variable_ref (scm_c_lookup ("<procedure>")); |
| 991 | class_primitive_generic = scm_variable_ref (scm_c_lookup ("<primitive-generic>")); |
| 992 | class_port = scm_variable_ref (scm_c_lookup ("<port>")); |
| 993 | class_input_port = scm_variable_ref (scm_c_lookup ("<input-port>")); |
| 994 | class_output_port = scm_variable_ref (scm_c_lookup ("<output-port>")); |
| 995 | class_input_output_port = scm_variable_ref (scm_c_lookup ("<input-output-port>")); |
| 996 | |
| 997 | create_smob_classes (); |
| 998 | create_struct_classes (); |
| 999 | create_port_classes (); |
| 1000 | |
| 1001 | return SCM_UNSPECIFIED; |
| 1002 | } |
| 1003 | #undef FUNC_NAME |
| 1004 | |
| 1005 | SCM_DEFINE (scm_sys_goops_loaded, "%goops-loaded", 0, 0, 0, |
| 1006 | (), |
| 1007 | "Announce that GOOPS is loaded and perform initialization\n" |
| 1008 | "on the C level which depends on the loaded GOOPS modules.") |
| 1009 | #define FUNC_NAME s_scm_sys_goops_loaded |
| 1010 | { |
| 1011 | goops_loaded_p = 1; |
| 1012 | var_class_name = scm_c_lookup ("class-name"); |
| 1013 | var_class_direct_supers = scm_c_lookup ("class-direct-supers"); |
| 1014 | var_class_direct_slots = scm_c_lookup ("class-direct-slots"); |
| 1015 | var_class_direct_subclasses = scm_c_lookup ("class-direct-subclasses"); |
| 1016 | var_class_direct_methods = scm_c_lookup ("class-direct-methods"); |
| 1017 | var_class_slots = scm_c_lookup ("class-slots"); |
| 1018 | |
| 1019 | var_generic_function_methods = scm_c_lookup ("generic-function-methods"); |
| 1020 | var_method_generic_function = scm_c_lookup ("method-generic-function"); |
| 1021 | var_method_specializers = scm_c_lookup ("method-specializers"); |
| 1022 | var_method_procedure = scm_c_lookup ("method-procedure"); |
| 1023 | |
| 1024 | var_change_class = scm_c_lookup ("change-class"); |
| 1025 | |
| 1026 | #if (SCM_ENABLE_DEPRECATED == 1) |
| 1027 | scm_init_deprecated_goops (); |
| 1028 | #endif |
| 1029 | |
| 1030 | return SCM_UNSPECIFIED; |
| 1031 | } |
| 1032 | #undef FUNC_NAME |
| 1033 | |
| 1034 | static void |
| 1035 | scm_init_goops_builtins (void *unused) |
| 1036 | { |
| 1037 | scm_module_goops = scm_current_module (); |
| 1038 | |
| 1039 | hell = scm_calloc (hell_size * sizeof (*hell)); |
| 1040 | hell_mutex = scm_make_mutex (); |
| 1041 | |
| 1042 | #include "libguile/goops.x" |
| 1043 | |
| 1044 | scm_c_define ("vtable-flag-vtable", |
| 1045 | scm_from_int (SCM_VTABLE_FLAG_VTABLE)); |
| 1046 | scm_c_define ("vtable-flag-applicable-vtable", |
| 1047 | scm_from_int (SCM_VTABLE_FLAG_APPLICABLE_VTABLE)); |
| 1048 | scm_c_define ("vtable-flag-setter-vtable", |
| 1049 | scm_from_int (SCM_VTABLE_FLAG_SETTER_VTABLE)); |
| 1050 | scm_c_define ("vtable-flag-validated", |
| 1051 | scm_from_int (SCM_VTABLE_FLAG_VALIDATED)); |
| 1052 | scm_c_define ("vtable-flag-goops-class", |
| 1053 | scm_from_int (SCM_VTABLE_FLAG_GOOPS_CLASS)); |
| 1054 | scm_c_define ("vtable-flag-goops-valid", |
| 1055 | scm_from_int (SCM_VTABLE_FLAG_GOOPS_VALID)); |
| 1056 | scm_c_define ("vtable-flag-goops-slot", |
| 1057 | scm_from_int (SCM_VTABLE_FLAG_GOOPS_SLOT)); |
| 1058 | scm_c_define ("vtable-flag-goops-static", |
| 1059 | scm_from_int (SCM_VTABLE_FLAG_GOOPS_STATIC)); |
| 1060 | } |
| 1061 | |
| 1062 | void |
| 1063 | scm_init_goops () |
| 1064 | { |
| 1065 | scm_c_register_extension ("libguile-" SCM_EFFECTIVE_VERSION, |
| 1066 | "scm_init_goops_builtins", scm_init_goops_builtins, |
| 1067 | NULL); |
| 1068 | } |
| 1069 | |
| 1070 | /* |
| 1071 | Local Variables: |
| 1072 | c-file-style: "gnu" |
| 1073 | End: |
| 1074 | */ |