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729dbac3 | 1 | /* Copyright (C) 1998,2000,2001 Free Software Foundation, Inc. |
1ffa265b MD |
2 | * |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, | |
16 | * Boston, MA 02111-1307 USA | |
17 | * | |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
21 | * The exception is that, if you link the GUILE library with other files | |
22 | * to produce an executable, this does not by itself cause the | |
23 | * resulting executable to be covered by the GNU General Public License. | |
24 | * Your use of that executable is in no way restricted on account of | |
25 | * linking the GUILE library code into it. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
30 | * This exception applies only to the code released by the | |
31 | * Free Software Foundation under the name GUILE. If you copy | |
32 | * code from other Free Software Foundation releases into a copy of | |
33 | * GUILE, as the General Public License permits, the exception does | |
34 | * not apply to the code that you add in this way. To avoid misleading | |
35 | * anyone as to the status of such modified files, you must delete | |
36 | * this exception notice from them. | |
37 | * | |
38 | * If you write modifications of your own for GUILE, it is your choice | |
39 | * whether to permit this exception to apply to your modifications. | |
40 | * If you do not wish that, delete this exception notice. */ | |
6e8d25a6 | 41 | |
6e8d25a6 | 42 | |
1ffa265b MD |
43 | \f |
44 | ||
d02b98e9 MV |
45 | #include <stdarg.h> |
46 | ||
a0599745 | 47 | #include "libguile/_scm.h" |
1ffa265b | 48 | |
a0599745 | 49 | #include "libguile/eval.h" |
fb43bf74 | 50 | #include "libguile/smob.h" |
a0599745 | 51 | #include "libguile/procprop.h" |
152abe96 MD |
52 | #include "libguile/vectors.h" |
53 | #include "libguile/hashtab.h" | |
54 | #include "libguile/struct.h" | |
55 | #include "libguile/variable.h" | |
7f763132 | 56 | #include "libguile/fluids.h" |
d02b98e9 | 57 | #include "libguile/deprecation.h" |
1ffa265b | 58 | |
a0599745 | 59 | #include "libguile/modules.h" |
1ffa265b | 60 | |
86d31dfe | 61 | int scm_module_system_booted_p = 0; |
e3365c07 | 62 | |
92c2555f | 63 | scm_t_bits scm_module_tag; |
e3365c07 | 64 | |
1ffa265b MD |
65 | static SCM the_module; |
66 | ||
55000e5f MV |
67 | SCM_DEFINE (scm_current_module, "current-module", 0, 0, 0, |
68 | (), | |
69 | "Return the current module.") | |
70 | #define FUNC_NAME s_scm_current_module | |
1ffa265b | 71 | { |
55000e5f | 72 | return scm_fluid_ref (the_module); |
1ffa265b | 73 | } |
55000e5f | 74 | #undef FUNC_NAME |
1ffa265b | 75 | |
86d31dfe | 76 | static void scm_post_boot_init_modules (void); |
1ffa265b | 77 | |
55000e5f MV |
78 | SCM_DEFINE (scm_set_current_module, "set-current-module", 1, 0, 0, |
79 | (SCM module), | |
80 | "Set the current module to @var{module} and return" | |
81 | "the previous current module.") | |
82 | #define FUNC_NAME s_scm_set_current_module | |
1ffa265b | 83 | { |
55000e5f MV |
84 | SCM old; |
85 | ||
86d31dfe MV |
86 | if (!scm_module_system_booted_p) |
87 | scm_post_boot_init_modules (); | |
88 | ||
89 | SCM_VALIDATE_MODULE (SCM_ARG1, module); | |
55000e5f MV |
90 | |
91 | old = scm_current_module (); | |
92 | scm_fluid_set_x (the_module, module); | |
93 | ||
1ffa265b MD |
94 | return old; |
95 | } | |
55000e5f | 96 | #undef FUNC_NAME |
1ffa265b | 97 | |
e3365c07 MD |
98 | SCM_DEFINE (scm_interaction_environment, "interaction-environment", 0, 0, 0, |
99 | (), | |
1e6808ea MG |
100 | "Return a specifier for the environment that contains\n" |
101 | "implementation--defined bindings, typically a superset of those\n" | |
102 | "listed in the report. The intent is that this procedure will\n" | |
103 | "return the environment in which the implementation would\n" | |
104 | "evaluate expressions dynamically typed by the user.") | |
e3365c07 MD |
105 | #define FUNC_NAME s_scm_interaction_environment |
106 | { | |
aa767bc5 | 107 | return scm_current_module (); |
e3365c07 MD |
108 | } |
109 | #undef FUNC_NAME | |
110 | ||
1ffa265b | 111 | SCM |
d02b98e9 MV |
112 | scm_c_call_with_current_module (SCM module, |
113 | SCM (*func)(void *), void *data) | |
1ffa265b | 114 | { |
d02b98e9 | 115 | return scm_c_with_fluid (the_module, module, func, data); |
1ffa265b MD |
116 | } |
117 | ||
d02b98e9 MV |
118 | static SCM |
119 | convert_module_name (const char *name) | |
281004cc | 120 | { |
d02b98e9 MV |
121 | SCM list = SCM_EOL; |
122 | SCM *tail = &list; | |
281004cc | 123 | |
d02b98e9 MV |
124 | const char *ptr; |
125 | while (*name) | |
126 | { | |
127 | while (*name == ' ') | |
128 | name++; | |
129 | ptr = name; | |
130 | while (*ptr && *ptr != ' ') | |
131 | ptr++; | |
132 | if (ptr > name) | |
133 | { | |
134 | *tail = scm_cons (scm_mem2symbol (name, ptr-name), SCM_EOL); | |
135 | tail = SCM_CDRLOC (*tail); | |
136 | } | |
137 | name = ptr; | |
138 | } | |
139 | ||
140 | return list; | |
1ffa265b MD |
141 | } |
142 | ||
d02b98e9 MV |
143 | static SCM process_define_module_var; |
144 | static SCM process_use_modules_var; | |
145 | static SCM resolve_module_var; | |
146 | ||
9e57344b | 147 | SCM |
d02b98e9 | 148 | scm_c_resolve_module (const char *name) |
9e57344b | 149 | { |
d02b98e9 | 150 | return scm_resolve_module (convert_module_name (name)); |
9e57344b MV |
151 | } |
152 | ||
55000e5f | 153 | SCM |
d02b98e9 | 154 | scm_resolve_module (SCM name) |
55000e5f | 155 | { |
fdc28395 | 156 | return scm_call_1 (SCM_VARIABLE_REF (resolve_module_var), name); |
55000e5f MV |
157 | } |
158 | ||
159 | SCM | |
d02b98e9 MV |
160 | scm_c_define_module (const char *name, |
161 | void (*init)(void *), void *data) | |
55000e5f | 162 | { |
fdc28395 | 163 | SCM module = scm_call_1 (SCM_VARIABLE_REF (process_define_module_var), |
1afff620 | 164 | scm_list_1 (convert_module_name (name))); |
d02b98e9 MV |
165 | if (init) |
166 | scm_c_call_with_current_module (module, (SCM (*)(void*))init, data); | |
167 | return module; | |
55000e5f MV |
168 | } |
169 | ||
d02b98e9 MV |
170 | void |
171 | scm_c_use_module (const char *name) | |
90184345 | 172 | { |
fdc28395 | 173 | scm_call_1 (SCM_VARIABLE_REF (process_use_modules_var), |
1afff620 | 174 | scm_list_1 (convert_module_name (name))); |
90184345 MD |
175 | } |
176 | ||
d02b98e9 | 177 | static SCM module_export_x_var; |
281004cc | 178 | |
d02b98e9 MV |
179 | void |
180 | scm_c_export (const char *name, ...) | |
281004cc | 181 | { |
d02b98e9 MV |
182 | va_list ap; |
183 | SCM names = scm_cons (scm_str2symbol (name), SCM_EOL); | |
184 | SCM *tail = SCM_CDRLOC (names); | |
185 | va_start (ap, name); | |
186 | while (1) | |
187 | { | |
188 | const char *n = va_arg (ap, const char *); | |
189 | if (n == NULL) | |
190 | break; | |
191 | *tail = scm_cons (scm_str2symbol (n), SCM_EOL); | |
192 | tail = SCM_CDRLOC (*tail); | |
193 | } | |
fdc28395 KN |
194 | scm_call_2 (SCM_VARIABLE_REF (module_export_x_var), |
195 | scm_current_module (), names); | |
281004cc MD |
196 | } |
197 | ||
e3365c07 | 198 | /* Environments */ |
d164a5af MD |
199 | |
200 | SCM | |
6e8d25a6 | 201 | scm_top_level_env (SCM thunk) |
d164a5af MD |
202 | { |
203 | if (SCM_IMP (thunk)) | |
204 | return SCM_EOL; | |
205 | else | |
206 | return scm_cons (thunk, SCM_EOL); | |
207 | } | |
208 | ||
209 | SCM | |
210 | scm_env_top_level (SCM env) | |
211 | { | |
212 | while (SCM_NIMP (env)) | |
213 | { | |
214 | if (!SCM_CONSP (SCM_CAR (env)) | |
215 | && SCM_NFALSEP (scm_procedure_p (SCM_CAR (env)))) | |
c15c33ee | 216 | return SCM_CAR (env); |
d164a5af MD |
217 | env = SCM_CDR (env); |
218 | } | |
219 | return SCM_BOOL_F; | |
220 | } | |
221 | ||
86d31dfe MV |
222 | SCM_SYMBOL (sym_module, "module"); |
223 | ||
d02b98e9 MV |
224 | static SCM the_root_module_var; |
225 | ||
226 | static SCM | |
227 | the_root_module () | |
228 | { | |
229 | if (scm_module_system_booted_p) | |
230 | return SCM_VARIABLE_REF (the_root_module_var); | |
231 | else | |
232 | return SCM_BOOL_F; | |
233 | } | |
234 | ||
86d31dfe MV |
235 | SCM |
236 | scm_lookup_closure_module (SCM proc) | |
237 | { | |
238 | if (SCM_FALSEP (proc)) | |
d02b98e9 | 239 | return the_root_module (); |
86d31dfe MV |
240 | else if (SCM_EVAL_CLOSURE_P (proc)) |
241 | return SCM_PACK (SCM_SMOB_DATA (proc)); | |
242 | else | |
243 | { | |
244 | SCM mod = scm_procedure_property (proc, sym_module); | |
245 | if (mod == SCM_BOOL_F) | |
d02b98e9 | 246 | mod = the_root_module (); |
86d31dfe MV |
247 | return mod; |
248 | } | |
249 | } | |
250 | ||
e24ca538 MV |
251 | SCM_DEFINE (scm_env_module, "env-module", 1, 0, 0, |
252 | (SCM env), | |
253 | "Return the module of @var{ENV}, a lexical environment.") | |
254 | #define FUNC_NAME s_scm_env_module | |
86d31dfe MV |
255 | { |
256 | return scm_lookup_closure_module (scm_env_top_level (env)); | |
257 | } | |
e24ca538 | 258 | #undef FUNC_NAME |
86d31dfe | 259 | |
152abe96 MD |
260 | /* |
261 | * C level implementation of the standard eval closure | |
262 | * | |
263 | * This increases loading speed substantially. | |
264 | * The code will be replaced by the low-level environments in next release. | |
265 | */ | |
266 | ||
86d31dfe | 267 | static SCM module_make_local_var_x_var; |
152abe96 MD |
268 | |
269 | static SCM | |
270 | module_variable (SCM module, SCM sym) | |
271 | { | |
272 | /* 1. Check module obarray */ | |
e3365c07 | 273 | SCM b = scm_hashq_ref (SCM_MODULE_OBARRAY (module), sym, SCM_UNDEFINED); |
152abe96 MD |
274 | if (SCM_VARIABLEP (b)) |
275 | return b; | |
276 | { | |
e3365c07 | 277 | SCM binder = SCM_MODULE_BINDER (module); |
152abe96 MD |
278 | if (SCM_NFALSEP (binder)) |
279 | /* 2. Custom binder */ | |
280 | { | |
fdc28395 | 281 | b = scm_call_3 (binder, module, sym, SCM_BOOL_F); |
152abe96 MD |
282 | if (SCM_NFALSEP (b)) |
283 | return b; | |
284 | } | |
285 | } | |
286 | { | |
287 | /* 3. Search the use list */ | |
e3365c07 | 288 | SCM uses = SCM_MODULE_USES (module); |
152abe96 MD |
289 | while (SCM_CONSP (uses)) |
290 | { | |
291 | b = module_variable (SCM_CAR (uses), sym); | |
292 | if (SCM_NFALSEP (b)) | |
293 | return b; | |
294 | uses = SCM_CDR (uses); | |
295 | } | |
296 | return SCM_BOOL_F; | |
297 | } | |
298 | } | |
299 | ||
92c2555f | 300 | scm_t_bits scm_tc16_eval_closure; |
152abe96 | 301 | |
86d31dfe MV |
302 | #define SCM_F_EVAL_CLOSURE_INTERFACE (1<<16) |
303 | #define SCM_EVAL_CLOSURE_INTERFACE_P(e) \ | |
304 | (SCM_CELL_WORD_0 (e) & SCM_F_EVAL_CLOSURE_INTERFACE) | |
305 | ||
fb43bf74 KN |
306 | /* NOTE: This function may be called by a smob application |
307 | or from another C function directly. */ | |
308 | SCM | |
309 | scm_eval_closure_lookup (SCM eclo, SCM sym, SCM definep) | |
152abe96 | 310 | { |
fb43bf74 | 311 | SCM module = SCM_PACK (SCM_SMOB_DATA (eclo)); |
152abe96 | 312 | if (SCM_NFALSEP (definep)) |
86d31dfe MV |
313 | { |
314 | if (SCM_EVAL_CLOSURE_INTERFACE_P (eclo)) | |
315 | return SCM_BOOL_F; | |
fdc28395 KN |
316 | return scm_call_2 (SCM_VARIABLE_REF (module_make_local_var_x_var), |
317 | module, sym); | |
86d31dfe | 318 | } |
152abe96 MD |
319 | else |
320 | return module_variable (module, sym); | |
321 | } | |
322 | ||
323 | SCM_DEFINE (scm_standard_eval_closure, "standard-eval-closure", 1, 0, 0, | |
324 | (SCM module), | |
84526793 | 325 | "Return an eval closure for the module @var{module}.") |
152abe96 MD |
326 | #define FUNC_NAME s_scm_standard_eval_closure |
327 | { | |
e841c3e0 | 328 | SCM_RETURN_NEWSMOB (scm_tc16_eval_closure, SCM_UNPACK (module)); |
152abe96 MD |
329 | } |
330 | #undef FUNC_NAME | |
331 | ||
86d31dfe MV |
332 | SCM_DEFINE (scm_standard_interface_eval_closure, |
333 | "standard-interface-eval-closure", 1, 0, 0, | |
334 | (SCM module), | |
335 | "Return a interface eval closure for the module @var{module}. " | |
336 | "Such a closure does not allow new bindings to be added.") | |
337 | #define FUNC_NAME s_scm_standard_interface_eval_closure | |
338 | { | |
339 | SCM_RETURN_NEWSMOB (scm_tc16_eval_closure | SCM_F_EVAL_CLOSURE_INTERFACE, | |
340 | SCM_UNPACK (module)); | |
341 | } | |
342 | #undef FUNC_NAME | |
343 | ||
d02b98e9 MV |
344 | SCM |
345 | scm_module_lookup_closure (SCM module) | |
346 | { | |
347 | if (module == SCM_BOOL_F) | |
348 | return SCM_BOOL_F; | |
349 | else | |
350 | return SCM_MODULE_EVAL_CLOSURE (module); | |
351 | } | |
352 | ||
353 | SCM | |
354 | scm_current_module_lookup_closure () | |
355 | { | |
356 | if (scm_module_system_booted_p) | |
357 | return scm_module_lookup_closure (scm_current_module ()); | |
358 | else | |
359 | return SCM_BOOL_F; | |
360 | } | |
361 | ||
362 | SCM | |
363 | scm_module_transformer (SCM module) | |
364 | { | |
365 | if (module == SCM_BOOL_F) | |
366 | return SCM_BOOL_F; | |
367 | else | |
368 | return SCM_MODULE_TRANSFORMER (module); | |
369 | } | |
370 | ||
371 | SCM | |
372 | scm_current_module_transformer () | |
373 | { | |
374 | if (scm_module_system_booted_p) | |
375 | return scm_module_transformer (scm_current_module ()); | |
376 | else | |
377 | return SCM_BOOL_F; | |
378 | } | |
379 | ||
86d31dfe MV |
380 | /* scm_sym2var |
381 | * | |
382 | * looks up the variable bound to SYM according to PROC. PROC should be | |
383 | * a `eval closure' of some module. | |
384 | * | |
385 | * When no binding exists, and DEFINEP is true, create a new binding | |
386 | * with a initial value of SCM_UNDEFINED. Return `#f' when DEFINEP as | |
387 | * false and no binding exists. | |
388 | * | |
389 | * When PROC is `#f', it is ignored and the binding is searched for in | |
390 | * the scm_pre_modules_obarray (a `eq' hash table). | |
391 | */ | |
392 | ||
393 | SCM scm_pre_modules_obarray; | |
394 | ||
395 | SCM | |
396 | scm_sym2var (SCM sym, SCM proc, SCM definep) | |
397 | #define FUNC_NAME "scm_sym2var" | |
398 | { | |
399 | SCM var; | |
400 | ||
401 | if (SCM_NIMP (proc)) | |
402 | { | |
403 | if (SCM_EVAL_CLOSURE_P (proc)) | |
404 | { | |
405 | /* Bypass evaluator in the standard case. */ | |
406 | var = scm_eval_closure_lookup (proc, sym, definep); | |
407 | } | |
408 | else | |
fdc28395 | 409 | var = scm_call_2 (proc, sym, definep); |
86d31dfe MV |
410 | } |
411 | else | |
412 | { | |
413 | SCM handle; | |
414 | ||
415 | if (definep == SCM_BOOL_F) | |
416 | var = scm_hashq_ref (scm_pre_modules_obarray, sym, SCM_BOOL_F); | |
417 | else | |
418 | { | |
419 | handle = scm_hashq_create_handle_x (scm_pre_modules_obarray, | |
420 | sym, SCM_BOOL_F); | |
421 | var = SCM_CDR (handle); | |
422 | if (var == SCM_BOOL_F) | |
423 | { | |
424 | var = scm_make_variable (SCM_UNDEFINED); | |
86d31dfe MV |
425 | SCM_SETCDR (handle, var); |
426 | } | |
427 | } | |
428 | } | |
429 | ||
430 | if (var != SCM_BOOL_F && !SCM_VARIABLEP (var)) | |
1afff620 | 431 | SCM_MISC_ERROR ("~S is not bound to a variable", scm_list_1 (sym)); |
86d31dfe MV |
432 | |
433 | return var; | |
434 | } | |
435 | #undef FUNC_NAME | |
436 | ||
437 | SCM | |
438 | scm_c_module_lookup (SCM module, const char *name) | |
439 | { | |
440 | return scm_module_lookup (module, scm_str2symbol (name)); | |
441 | } | |
442 | ||
443 | SCM | |
444 | scm_module_lookup (SCM module, SCM sym) | |
445 | #define FUNC_NAME "module-lookup" | |
446 | { | |
447 | SCM var; | |
448 | SCM_VALIDATE_MODULE (1, module); | |
449 | ||
450 | var = scm_sym2var (sym, scm_module_lookup_closure (module), SCM_BOOL_F); | |
451 | if (SCM_FALSEP (var)) | |
1afff620 | 452 | SCM_MISC_ERROR ("unbound variable: ~S", scm_list_1 (sym)); |
86d31dfe MV |
453 | return var; |
454 | } | |
455 | #undef FUNC_NAME | |
456 | ||
457 | SCM | |
458 | scm_c_lookup (const char *name) | |
459 | { | |
460 | return scm_lookup (scm_str2symbol (name)); | |
461 | } | |
462 | ||
463 | SCM | |
464 | scm_lookup (SCM sym) | |
465 | { | |
466 | SCM var = | |
467 | scm_sym2var (sym, scm_current_module_lookup_closure (), SCM_BOOL_F); | |
468 | if (SCM_FALSEP (var)) | |
1afff620 | 469 | scm_misc_error ("scm_lookup", "unbound variable: ~S", scm_list_1 (sym)); |
86d31dfe MV |
470 | return var; |
471 | } | |
472 | ||
473 | SCM | |
474 | scm_c_module_define (SCM module, const char *name, SCM value) | |
475 | { | |
476 | return scm_module_define (module, scm_str2symbol (name), value); | |
477 | } | |
478 | ||
479 | SCM | |
480 | scm_module_define (SCM module, SCM sym, SCM value) | |
481 | #define FUNC_NAME "module-define" | |
482 | { | |
483 | SCM var; | |
484 | SCM_VALIDATE_MODULE (1, module); | |
485 | ||
486 | var = scm_sym2var (sym, scm_module_lookup_closure (module), SCM_BOOL_T); | |
487 | SCM_VARIABLE_SET (var, value); | |
488 | return var; | |
489 | } | |
490 | #undef FUNC_NAME | |
491 | ||
492 | SCM | |
493 | scm_c_define (const char *name, SCM value) | |
494 | { | |
495 | return scm_define (scm_str2symbol (name), value); | |
496 | } | |
497 | ||
498 | SCM | |
499 | scm_define (SCM sym, SCM value) | |
500 | { | |
501 | SCM var = | |
502 | scm_sym2var (sym, scm_current_module_lookup_closure (), SCM_BOOL_T); | |
503 | SCM_VARIABLE_SET (var, value); | |
504 | return var; | |
505 | } | |
506 | ||
507 | SCM | |
508 | scm_module_reverse_lookup (SCM module, SCM variable) | |
509 | #define FUNC_NAME "module-reverse-lookup" | |
510 | { | |
511 | SCM obarray; | |
c014a02e | 512 | long i, n; |
86d31dfe MV |
513 | |
514 | if (module == SCM_BOOL_F) | |
515 | obarray = scm_pre_modules_obarray; | |
516 | else | |
517 | { | |
518 | SCM_VALIDATE_MODULE (1, module); | |
519 | obarray = SCM_MODULE_OBARRAY (module); | |
520 | } | |
521 | ||
522 | /* XXX - We do not use scm_hash_fold here to avoid searching the | |
523 | whole obarray. We should have a scm_hash_find procedure. */ | |
524 | ||
525 | n = SCM_VECTOR_LENGTH (obarray); | |
526 | for (i = 0; i < n; ++i) | |
527 | { | |
528 | SCM ls = SCM_VELTS (obarray)[i], handle; | |
529 | while (!SCM_NULLP (ls)) | |
530 | { | |
531 | handle = SCM_CAR (ls); | |
532 | if (SCM_CDR (handle) == variable) | |
533 | return SCM_CAR (handle); | |
534 | ls = SCM_CDR (ls); | |
535 | } | |
536 | } | |
537 | ||
538 | /* Try the `uses' list. | |
539 | */ | |
540 | { | |
541 | SCM uses = SCM_MODULE_USES (module); | |
542 | while (SCM_CONSP (uses)) | |
543 | { | |
544 | SCM sym = scm_module_reverse_lookup (SCM_CAR (uses), variable); | |
545 | if (sym != SCM_BOOL_F) | |
546 | return sym; | |
547 | uses = SCM_CDR (uses); | |
548 | } | |
549 | } | |
550 | ||
551 | return SCM_BOOL_F; | |
552 | } | |
553 | #undef FUNC_NAME | |
554 | ||
555 | SCM_DEFINE (scm_get_pre_modules_obarray, "%get-pre-modules-obarray", 0, 0, 0, | |
556 | (), | |
557 | "Return the obarray that is used for all new bindings before " | |
558 | "the module system is booted. The first call to " | |
559 | "@code{set-current-module} will boot the module system.") | |
560 | #define FUNC_NAME s_scm_get_pre_modules_obarray | |
561 | { | |
562 | return scm_pre_modules_obarray; | |
563 | } | |
564 | #undef FUNC_NAME | |
565 | ||
d02b98e9 MV |
566 | SCM_SYMBOL (scm_sym_system_module, "system-module"); |
567 | ||
568 | SCM | |
569 | scm_system_module_env_p (SCM env) | |
570 | { | |
571 | SCM proc = scm_env_top_level (env); | |
572 | if (SCM_FALSEP (proc)) | |
573 | return SCM_BOOL_T; | |
574 | return ((SCM_NFALSEP (scm_procedure_property (proc, | |
575 | scm_sym_system_module))) | |
576 | ? SCM_BOOL_T | |
577 | : SCM_BOOL_F); | |
578 | } | |
579 | ||
86d31dfe MV |
580 | void |
581 | scm_modules_prehistory () | |
582 | { | |
583 | scm_pre_modules_obarray | |
584 | = scm_permanent_object (scm_c_make_hash_table (2001)); | |
585 | } | |
586 | ||
1ffa265b MD |
587 | void |
588 | scm_init_modules () | |
589 | { | |
8dc9439f | 590 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 591 | #include "libguile/modules.x" |
8dc9439f | 592 | #endif |
86d31dfe MV |
593 | module_make_local_var_x_var = scm_c_define ("module-make-local-var!", |
594 | SCM_UNDEFINED); | |
e841c3e0 KN |
595 | scm_tc16_eval_closure = scm_make_smob_type ("eval-closure", 0); |
596 | scm_set_smob_mark (scm_tc16_eval_closure, scm_markcdr); | |
597 | scm_set_smob_apply (scm_tc16_eval_closure, scm_eval_closure_lookup, 2, 0, 0); | |
55000e5f MV |
598 | |
599 | the_module = scm_permanent_object (scm_make_fluid ()); | |
1ffa265b MD |
600 | } |
601 | ||
86d31dfe | 602 | static void |
1ffa265b MD |
603 | scm_post_boot_init_modules () |
604 | { | |
86d31dfe MV |
605 | #define PERM(x) scm_permanent_object(x) |
606 | ||
607 | SCM module_type = SCM_VARIABLE_REF (scm_c_lookup ("module-type")); | |
904a077d | 608 | scm_module_tag = (SCM_CELL_WORD_1 (module_type) + scm_tc3_struct); |
d02b98e9 MV |
609 | |
610 | resolve_module_var = PERM (scm_c_lookup ("resolve-module")); | |
611 | process_define_module_var = PERM (scm_c_lookup ("process-define-module")); | |
612 | process_use_modules_var = PERM (scm_c_lookup ("process-use-modules")); | |
613 | module_export_x_var = PERM (scm_c_lookup ("module-export!")); | |
614 | the_root_module_var = PERM (scm_c_lookup ("the-root-module")); | |
615 | ||
e3365c07 | 616 | scm_module_system_booted_p = 1; |
1ffa265b | 617 | } |
89e00824 ML |
618 | |
619 | /* | |
620 | Local Variables: | |
621 | c-file-style: "gnu" | |
622 | End: | |
623 | */ |