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152abe96 | 1 | /* Copyright (C) 1998, 2000 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 GB |
41 | |
42 | /* Software engineering face-lift by Greg J. Badros, 11-Dec-1999, | |
43 | gjb@cs.washington.edu, http://www.cs.washington.edu/homes/gjb */ | |
44 | ||
1ffa265b MD |
45 | \f |
46 | ||
d02b98e9 MV |
47 | #include <stdarg.h> |
48 | ||
a0599745 | 49 | #include "libguile/_scm.h" |
1ffa265b | 50 | |
a0599745 | 51 | #include "libguile/eval.h" |
fb43bf74 | 52 | #include "libguile/smob.h" |
a0599745 | 53 | #include "libguile/procprop.h" |
152abe96 MD |
54 | #include "libguile/vectors.h" |
55 | #include "libguile/hashtab.h" | |
56 | #include "libguile/struct.h" | |
57 | #include "libguile/variable.h" | |
7f763132 | 58 | #include "libguile/fluids.h" |
d02b98e9 | 59 | #include "libguile/deprecation.h" |
1ffa265b | 60 | |
a0599745 | 61 | #include "libguile/modules.h" |
1ffa265b | 62 | |
86d31dfe | 63 | int scm_module_system_booted_p = 0; |
e3365c07 MD |
64 | |
65 | SCM scm_module_tag; | |
66 | ||
1ffa265b MD |
67 | static SCM the_module; |
68 | ||
55000e5f MV |
69 | SCM_DEFINE (scm_current_module, "current-module", 0, 0, 0, |
70 | (), | |
71 | "Return the current module.") | |
72 | #define FUNC_NAME s_scm_current_module | |
1ffa265b | 73 | { |
55000e5f | 74 | return scm_fluid_ref (the_module); |
1ffa265b | 75 | } |
55000e5f | 76 | #undef FUNC_NAME |
1ffa265b | 77 | |
86d31dfe | 78 | static void scm_post_boot_init_modules (void); |
1ffa265b | 79 | |
55000e5f MV |
80 | SCM_DEFINE (scm_set_current_module, "set-current-module", 1, 0, 0, |
81 | (SCM module), | |
82 | "Set the current module to @var{module} and return" | |
83 | "the previous current module.") | |
84 | #define FUNC_NAME s_scm_set_current_module | |
1ffa265b | 85 | { |
55000e5f MV |
86 | SCM old; |
87 | ||
86d31dfe MV |
88 | if (!scm_module_system_booted_p) |
89 | scm_post_boot_init_modules (); | |
90 | ||
91 | SCM_VALIDATE_MODULE (SCM_ARG1, module); | |
55000e5f MV |
92 | |
93 | old = scm_current_module (); | |
94 | scm_fluid_set_x (the_module, module); | |
95 | ||
96 | #if SCM_DEBUG_DEPRECATED == 0 | |
86d31dfe | 97 | scm_fluid_set_x (SCM_VARIABLE_REF (scm_top_level_lookup_closure_var), |
55000e5f | 98 | scm_current_module_lookup_closure ()); |
86d31dfe | 99 | scm_fluid_set_x (SCM_VARIABLE_REF (scm_system_transformer), |
55000e5f MV |
100 | scm_current_module_transformer ()); |
101 | #endif | |
102 | ||
1ffa265b MD |
103 | return old; |
104 | } | |
55000e5f | 105 | #undef FUNC_NAME |
1ffa265b | 106 | |
e3365c07 MD |
107 | SCM_DEFINE (scm_interaction_environment, "interaction-environment", 0, 0, 0, |
108 | (), | |
1e6808ea MG |
109 | "Return a specifier for the environment that contains\n" |
110 | "implementation--defined bindings, typically a superset of those\n" | |
111 | "listed in the report. The intent is that this procedure will\n" | |
112 | "return the environment in which the implementation would\n" | |
113 | "evaluate expressions dynamically typed by the user.") | |
e3365c07 MD |
114 | #define FUNC_NAME s_scm_interaction_environment |
115 | { | |
aa767bc5 | 116 | return scm_current_module (); |
e3365c07 MD |
117 | } |
118 | #undef FUNC_NAME | |
119 | ||
1ffa265b | 120 | SCM |
d02b98e9 MV |
121 | scm_c_call_with_current_module (SCM module, |
122 | SCM (*func)(void *), void *data) | |
1ffa265b | 123 | { |
d02b98e9 | 124 | return scm_c_with_fluid (the_module, module, func, data); |
1ffa265b MD |
125 | } |
126 | ||
d02b98e9 MV |
127 | static SCM |
128 | convert_module_name (const char *name) | |
281004cc | 129 | { |
d02b98e9 MV |
130 | SCM list = SCM_EOL; |
131 | SCM *tail = &list; | |
281004cc | 132 | |
d02b98e9 MV |
133 | const char *ptr; |
134 | while (*name) | |
135 | { | |
136 | while (*name == ' ') | |
137 | name++; | |
138 | ptr = name; | |
139 | while (*ptr && *ptr != ' ') | |
140 | ptr++; | |
141 | if (ptr > name) | |
142 | { | |
143 | *tail = scm_cons (scm_mem2symbol (name, ptr-name), SCM_EOL); | |
144 | tail = SCM_CDRLOC (*tail); | |
145 | } | |
146 | name = ptr; | |
147 | } | |
148 | ||
149 | return list; | |
1ffa265b MD |
150 | } |
151 | ||
d02b98e9 MV |
152 | static SCM process_define_module_var; |
153 | static SCM process_use_modules_var; | |
154 | static SCM resolve_module_var; | |
155 | ||
9e57344b | 156 | SCM |
d02b98e9 | 157 | scm_c_resolve_module (const char *name) |
9e57344b | 158 | { |
d02b98e9 | 159 | return scm_resolve_module (convert_module_name (name)); |
9e57344b MV |
160 | } |
161 | ||
55000e5f | 162 | SCM |
d02b98e9 | 163 | scm_resolve_module (SCM name) |
55000e5f | 164 | { |
d02b98e9 MV |
165 | return scm_apply (SCM_VARIABLE_REF (resolve_module_var), |
166 | SCM_LIST1 (name), SCM_EOL); | |
55000e5f MV |
167 | } |
168 | ||
169 | SCM | |
d02b98e9 MV |
170 | scm_c_define_module (const char *name, |
171 | void (*init)(void *), void *data) | |
55000e5f | 172 | { |
d02b98e9 MV |
173 | SCM module = scm_apply (SCM_VARIABLE_REF (process_define_module_var), |
174 | SCM_LIST1 (SCM_LIST1 (convert_module_name (name))), | |
175 | SCM_EOL); | |
176 | if (init) | |
177 | scm_c_call_with_current_module (module, (SCM (*)(void*))init, data); | |
178 | return module; | |
55000e5f MV |
179 | } |
180 | ||
d02b98e9 MV |
181 | void |
182 | scm_c_use_module (const char *name) | |
90184345 | 183 | { |
d02b98e9 MV |
184 | scm_apply (SCM_VARIABLE_REF (process_use_modules_var), |
185 | SCM_LIST1 (SCM_LIST1 (convert_module_name (name))), | |
186 | SCM_EOL); | |
90184345 MD |
187 | } |
188 | ||
d02b98e9 | 189 | static SCM module_export_x_var; |
281004cc | 190 | |
d02b98e9 MV |
191 | void |
192 | scm_c_export (const char *name, ...) | |
281004cc | 193 | { |
d02b98e9 MV |
194 | va_list ap; |
195 | SCM names = scm_cons (scm_str2symbol (name), SCM_EOL); | |
196 | SCM *tail = SCM_CDRLOC (names); | |
197 | va_start (ap, name); | |
198 | while (1) | |
199 | { | |
200 | const char *n = va_arg (ap, const char *); | |
201 | if (n == NULL) | |
202 | break; | |
203 | *tail = scm_cons (scm_str2symbol (n), SCM_EOL); | |
204 | tail = SCM_CDRLOC (*tail); | |
205 | } | |
206 | scm_apply (SCM_VARIABLE_REF (module_export_x_var), | |
207 | SCM_LIST2 (scm_current_module (), | |
208 | names), | |
209 | SCM_EOL); | |
281004cc MD |
210 | } |
211 | ||
e3365c07 | 212 | /* Environments */ |
d164a5af MD |
213 | |
214 | SCM | |
6e8d25a6 | 215 | scm_top_level_env (SCM thunk) |
d164a5af MD |
216 | { |
217 | if (SCM_IMP (thunk)) | |
218 | return SCM_EOL; | |
219 | else | |
220 | return scm_cons (thunk, SCM_EOL); | |
221 | } | |
222 | ||
223 | SCM | |
224 | scm_env_top_level (SCM env) | |
225 | { | |
226 | while (SCM_NIMP (env)) | |
227 | { | |
228 | if (!SCM_CONSP (SCM_CAR (env)) | |
229 | && SCM_NFALSEP (scm_procedure_p (SCM_CAR (env)))) | |
c15c33ee | 230 | return SCM_CAR (env); |
d164a5af MD |
231 | env = SCM_CDR (env); |
232 | } | |
233 | return SCM_BOOL_F; | |
234 | } | |
235 | ||
86d31dfe MV |
236 | SCM_SYMBOL (sym_module, "module"); |
237 | ||
d02b98e9 MV |
238 | static SCM the_root_module_var; |
239 | ||
240 | static SCM | |
241 | the_root_module () | |
242 | { | |
243 | if (scm_module_system_booted_p) | |
244 | return SCM_VARIABLE_REF (the_root_module_var); | |
245 | else | |
246 | return SCM_BOOL_F; | |
247 | } | |
248 | ||
86d31dfe MV |
249 | SCM |
250 | scm_lookup_closure_module (SCM proc) | |
251 | { | |
252 | if (SCM_FALSEP (proc)) | |
d02b98e9 | 253 | return the_root_module (); |
86d31dfe MV |
254 | else if (SCM_EVAL_CLOSURE_P (proc)) |
255 | return SCM_PACK (SCM_SMOB_DATA (proc)); | |
256 | else | |
257 | { | |
258 | SCM mod = scm_procedure_property (proc, sym_module); | |
259 | if (mod == SCM_BOOL_F) | |
d02b98e9 | 260 | mod = the_root_module (); |
86d31dfe MV |
261 | return mod; |
262 | } | |
263 | } | |
264 | ||
265 | SCM | |
266 | scm_env_module (SCM env) | |
267 | { | |
268 | return scm_lookup_closure_module (scm_env_top_level (env)); | |
269 | } | |
270 | ||
152abe96 MD |
271 | /* |
272 | * C level implementation of the standard eval closure | |
273 | * | |
274 | * This increases loading speed substantially. | |
275 | * The code will be replaced by the low-level environments in next release. | |
276 | */ | |
277 | ||
86d31dfe | 278 | static SCM module_make_local_var_x_var; |
152abe96 MD |
279 | |
280 | static SCM | |
281 | module_variable (SCM module, SCM sym) | |
282 | { | |
283 | /* 1. Check module obarray */ | |
e3365c07 | 284 | SCM b = scm_hashq_ref (SCM_MODULE_OBARRAY (module), sym, SCM_UNDEFINED); |
152abe96 MD |
285 | if (SCM_VARIABLEP (b)) |
286 | return b; | |
287 | { | |
e3365c07 | 288 | SCM binder = SCM_MODULE_BINDER (module); |
152abe96 MD |
289 | if (SCM_NFALSEP (binder)) |
290 | /* 2. Custom binder */ | |
291 | { | |
292 | b = scm_apply (binder, | |
293 | SCM_LIST3 (module, sym, SCM_BOOL_F), | |
294 | SCM_EOL); | |
295 | if (SCM_NFALSEP (b)) | |
296 | return b; | |
297 | } | |
298 | } | |
299 | { | |
300 | /* 3. Search the use list */ | |
e3365c07 | 301 | SCM uses = SCM_MODULE_USES (module); |
152abe96 MD |
302 | while (SCM_CONSP (uses)) |
303 | { | |
304 | b = module_variable (SCM_CAR (uses), sym); | |
305 | if (SCM_NFALSEP (b)) | |
306 | return b; | |
307 | uses = SCM_CDR (uses); | |
308 | } | |
309 | return SCM_BOOL_F; | |
310 | } | |
311 | } | |
312 | ||
e841c3e0 | 313 | scm_bits_t scm_tc16_eval_closure; |
152abe96 | 314 | |
86d31dfe MV |
315 | #define SCM_F_EVAL_CLOSURE_INTERFACE (1<<16) |
316 | #define SCM_EVAL_CLOSURE_INTERFACE_P(e) \ | |
317 | (SCM_CELL_WORD_0 (e) & SCM_F_EVAL_CLOSURE_INTERFACE) | |
318 | ||
fb43bf74 KN |
319 | /* NOTE: This function may be called by a smob application |
320 | or from another C function directly. */ | |
321 | SCM | |
322 | scm_eval_closure_lookup (SCM eclo, SCM sym, SCM definep) | |
152abe96 | 323 | { |
fb43bf74 | 324 | SCM module = SCM_PACK (SCM_SMOB_DATA (eclo)); |
152abe96 | 325 | if (SCM_NFALSEP (definep)) |
86d31dfe MV |
326 | { |
327 | if (SCM_EVAL_CLOSURE_INTERFACE_P (eclo)) | |
328 | return SCM_BOOL_F; | |
329 | return scm_apply (SCM_VARIABLE_REF (module_make_local_var_x_var), | |
330 | SCM_LIST2 (module, sym), | |
331 | SCM_EOL); | |
332 | } | |
152abe96 MD |
333 | else |
334 | return module_variable (module, sym); | |
335 | } | |
336 | ||
337 | SCM_DEFINE (scm_standard_eval_closure, "standard-eval-closure", 1, 0, 0, | |
338 | (SCM module), | |
84526793 | 339 | "Return an eval closure for the module @var{module}.") |
152abe96 MD |
340 | #define FUNC_NAME s_scm_standard_eval_closure |
341 | { | |
e841c3e0 | 342 | SCM_RETURN_NEWSMOB (scm_tc16_eval_closure, SCM_UNPACK (module)); |
152abe96 MD |
343 | } |
344 | #undef FUNC_NAME | |
345 | ||
86d31dfe MV |
346 | SCM_DEFINE (scm_standard_interface_eval_closure, |
347 | "standard-interface-eval-closure", 1, 0, 0, | |
348 | (SCM module), | |
349 | "Return a interface eval closure for the module @var{module}. " | |
350 | "Such a closure does not allow new bindings to be added.") | |
351 | #define FUNC_NAME s_scm_standard_interface_eval_closure | |
352 | { | |
353 | SCM_RETURN_NEWSMOB (scm_tc16_eval_closure | SCM_F_EVAL_CLOSURE_INTERFACE, | |
354 | SCM_UNPACK (module)); | |
355 | } | |
356 | #undef FUNC_NAME | |
357 | ||
d02b98e9 MV |
358 | SCM |
359 | scm_module_lookup_closure (SCM module) | |
360 | { | |
361 | if (module == SCM_BOOL_F) | |
362 | return SCM_BOOL_F; | |
363 | else | |
364 | return SCM_MODULE_EVAL_CLOSURE (module); | |
365 | } | |
366 | ||
367 | SCM | |
368 | scm_current_module_lookup_closure () | |
369 | { | |
370 | if (scm_module_system_booted_p) | |
371 | return scm_module_lookup_closure (scm_current_module ()); | |
372 | else | |
373 | return SCM_BOOL_F; | |
374 | } | |
375 | ||
376 | SCM | |
377 | scm_module_transformer (SCM module) | |
378 | { | |
379 | if (module == SCM_BOOL_F) | |
380 | return SCM_BOOL_F; | |
381 | else | |
382 | return SCM_MODULE_TRANSFORMER (module); | |
383 | } | |
384 | ||
385 | SCM | |
386 | scm_current_module_transformer () | |
387 | { | |
388 | if (scm_module_system_booted_p) | |
389 | return scm_module_transformer (scm_current_module ()); | |
390 | else | |
391 | return SCM_BOOL_F; | |
392 | } | |
393 | ||
86d31dfe MV |
394 | /* scm_sym2var |
395 | * | |
396 | * looks up the variable bound to SYM according to PROC. PROC should be | |
397 | * a `eval closure' of some module. | |
398 | * | |
399 | * When no binding exists, and DEFINEP is true, create a new binding | |
400 | * with a initial value of SCM_UNDEFINED. Return `#f' when DEFINEP as | |
401 | * false and no binding exists. | |
402 | * | |
403 | * When PROC is `#f', it is ignored and the binding is searched for in | |
404 | * the scm_pre_modules_obarray (a `eq' hash table). | |
405 | */ | |
406 | ||
407 | SCM scm_pre_modules_obarray; | |
408 | ||
409 | SCM | |
410 | scm_sym2var (SCM sym, SCM proc, SCM definep) | |
411 | #define FUNC_NAME "scm_sym2var" | |
412 | { | |
413 | SCM var; | |
414 | ||
415 | if (SCM_NIMP (proc)) | |
416 | { | |
417 | if (SCM_EVAL_CLOSURE_P (proc)) | |
418 | { | |
419 | /* Bypass evaluator in the standard case. */ | |
420 | var = scm_eval_closure_lookup (proc, sym, definep); | |
421 | } | |
422 | else | |
423 | var = scm_apply (proc, sym, scm_cons (definep, scm_listofnull)); | |
424 | } | |
425 | else | |
426 | { | |
427 | SCM handle; | |
428 | ||
429 | if (definep == SCM_BOOL_F) | |
430 | var = scm_hashq_ref (scm_pre_modules_obarray, sym, SCM_BOOL_F); | |
431 | else | |
432 | { | |
433 | handle = scm_hashq_create_handle_x (scm_pre_modules_obarray, | |
434 | sym, SCM_BOOL_F); | |
435 | var = SCM_CDR (handle); | |
436 | if (var == SCM_BOOL_F) | |
437 | { | |
438 | var = scm_make_variable (SCM_UNDEFINED); | |
439 | #if SCM_ENABLE_VCELLS | |
440 | scm_variable_set_name_hint (var, sym); | |
441 | #endif | |
442 | SCM_SETCDR (handle, var); | |
443 | } | |
444 | } | |
445 | } | |
446 | ||
447 | if (var != SCM_BOOL_F && !SCM_VARIABLEP (var)) | |
448 | SCM_MISC_ERROR ("~S is not bound to a variable", SCM_LIST1 (sym)); | |
449 | ||
450 | return var; | |
451 | } | |
452 | #undef FUNC_NAME | |
453 | ||
454 | SCM | |
455 | scm_c_module_lookup (SCM module, const char *name) | |
456 | { | |
457 | return scm_module_lookup (module, scm_str2symbol (name)); | |
458 | } | |
459 | ||
460 | SCM | |
461 | scm_module_lookup (SCM module, SCM sym) | |
462 | #define FUNC_NAME "module-lookup" | |
463 | { | |
464 | SCM var; | |
465 | SCM_VALIDATE_MODULE (1, module); | |
466 | ||
467 | var = scm_sym2var (sym, scm_module_lookup_closure (module), SCM_BOOL_F); | |
468 | if (SCM_FALSEP (var)) | |
469 | SCM_MISC_ERROR ("unbound variable: ~S", SCM_LIST1 (sym)); | |
470 | return var; | |
471 | } | |
472 | #undef FUNC_NAME | |
473 | ||
474 | SCM | |
475 | scm_c_lookup (const char *name) | |
476 | { | |
477 | return scm_lookup (scm_str2symbol (name)); | |
478 | } | |
479 | ||
480 | SCM | |
481 | scm_lookup (SCM sym) | |
482 | { | |
483 | SCM var = | |
484 | scm_sym2var (sym, scm_current_module_lookup_closure (), SCM_BOOL_F); | |
485 | if (SCM_FALSEP (var)) | |
486 | scm_misc_error ("scm_lookup", "unbound variable: ~S", SCM_LIST1 (sym)); | |
487 | return var; | |
488 | } | |
489 | ||
490 | SCM | |
491 | scm_c_module_define (SCM module, const char *name, SCM value) | |
492 | { | |
493 | return scm_module_define (module, scm_str2symbol (name), value); | |
494 | } | |
495 | ||
496 | SCM | |
497 | scm_module_define (SCM module, SCM sym, SCM value) | |
498 | #define FUNC_NAME "module-define" | |
499 | { | |
500 | SCM var; | |
501 | SCM_VALIDATE_MODULE (1, module); | |
502 | ||
503 | var = scm_sym2var (sym, scm_module_lookup_closure (module), SCM_BOOL_T); | |
504 | SCM_VARIABLE_SET (var, value); | |
505 | return var; | |
506 | } | |
507 | #undef FUNC_NAME | |
508 | ||
509 | SCM | |
510 | scm_c_define (const char *name, SCM value) | |
511 | { | |
512 | return scm_define (scm_str2symbol (name), value); | |
513 | } | |
514 | ||
515 | SCM | |
516 | scm_define (SCM sym, SCM value) | |
517 | { | |
518 | SCM var = | |
519 | scm_sym2var (sym, scm_current_module_lookup_closure (), SCM_BOOL_T); | |
520 | SCM_VARIABLE_SET (var, value); | |
521 | return var; | |
522 | } | |
523 | ||
524 | SCM | |
525 | scm_module_reverse_lookup (SCM module, SCM variable) | |
526 | #define FUNC_NAME "module-reverse-lookup" | |
527 | { | |
528 | SCM obarray; | |
1be6b49c | 529 | scm_bits_t i, n; |
86d31dfe MV |
530 | |
531 | if (module == SCM_BOOL_F) | |
532 | obarray = scm_pre_modules_obarray; | |
533 | else | |
534 | { | |
535 | SCM_VALIDATE_MODULE (1, module); | |
536 | obarray = SCM_MODULE_OBARRAY (module); | |
537 | } | |
538 | ||
539 | /* XXX - We do not use scm_hash_fold here to avoid searching the | |
540 | whole obarray. We should have a scm_hash_find procedure. */ | |
541 | ||
542 | n = SCM_VECTOR_LENGTH (obarray); | |
543 | for (i = 0; i < n; ++i) | |
544 | { | |
545 | SCM ls = SCM_VELTS (obarray)[i], handle; | |
546 | while (!SCM_NULLP (ls)) | |
547 | { | |
548 | handle = SCM_CAR (ls); | |
549 | if (SCM_CDR (handle) == variable) | |
550 | return SCM_CAR (handle); | |
551 | ls = SCM_CDR (ls); | |
552 | } | |
553 | } | |
554 | ||
555 | /* Try the `uses' list. | |
556 | */ | |
557 | { | |
558 | SCM uses = SCM_MODULE_USES (module); | |
559 | while (SCM_CONSP (uses)) | |
560 | { | |
561 | SCM sym = scm_module_reverse_lookup (SCM_CAR (uses), variable); | |
562 | if (sym != SCM_BOOL_F) | |
563 | return sym; | |
564 | uses = SCM_CDR (uses); | |
565 | } | |
566 | } | |
567 | ||
568 | return SCM_BOOL_F; | |
569 | } | |
570 | #undef FUNC_NAME | |
571 | ||
572 | SCM_DEFINE (scm_get_pre_modules_obarray, "%get-pre-modules-obarray", 0, 0, 0, | |
573 | (), | |
574 | "Return the obarray that is used for all new bindings before " | |
575 | "the module system is booted. The first call to " | |
576 | "@code{set-current-module} will boot the module system.") | |
577 | #define FUNC_NAME s_scm_get_pre_modules_obarray | |
578 | { | |
579 | return scm_pre_modules_obarray; | |
580 | } | |
581 | #undef FUNC_NAME | |
582 | ||
d02b98e9 MV |
583 | #if SCM_DEBUG_DEPRECATED == 0 |
584 | ||
585 | static SCM root_module_lookup_closure; | |
586 | SCM_SYMBOL (scm_sym_app, "app"); | |
587 | SCM_SYMBOL (scm_sym_modules, "modules"); | |
588 | static SCM module_prefix; | |
589 | static SCM make_modules_in_var; | |
590 | static SCM beautify_user_module_x_var; | |
591 | static SCM try_module_autoload_var; | |
592 | ||
593 | #endif | |
594 | ||
595 | SCM_SYMBOL (scm_sym_system_module, "system-module"); | |
596 | ||
597 | SCM | |
598 | scm_system_module_env_p (SCM env) | |
599 | { | |
600 | SCM proc = scm_env_top_level (env); | |
601 | if (SCM_FALSEP (proc)) | |
602 | return SCM_BOOL_T; | |
603 | return ((SCM_NFALSEP (scm_procedure_property (proc, | |
604 | scm_sym_system_module))) | |
605 | ? SCM_BOOL_T | |
606 | : SCM_BOOL_F); | |
607 | } | |
608 | ||
86d31dfe MV |
609 | void |
610 | scm_modules_prehistory () | |
611 | { | |
612 | scm_pre_modules_obarray | |
613 | = scm_permanent_object (scm_c_make_hash_table (2001)); | |
614 | } | |
615 | ||
1ffa265b MD |
616 | void |
617 | scm_init_modules () | |
618 | { | |
8dc9439f | 619 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 620 | #include "libguile/modules.x" |
8dc9439f | 621 | #endif |
86d31dfe MV |
622 | module_make_local_var_x_var = scm_c_define ("module-make-local-var!", |
623 | SCM_UNDEFINED); | |
e841c3e0 KN |
624 | scm_tc16_eval_closure = scm_make_smob_type ("eval-closure", 0); |
625 | scm_set_smob_mark (scm_tc16_eval_closure, scm_markcdr); | |
626 | scm_set_smob_apply (scm_tc16_eval_closure, scm_eval_closure_lookup, 2, 0, 0); | |
55000e5f MV |
627 | |
628 | the_module = scm_permanent_object (scm_make_fluid ()); | |
1ffa265b MD |
629 | } |
630 | ||
86d31dfe | 631 | static void |
1ffa265b MD |
632 | scm_post_boot_init_modules () |
633 | { | |
86d31dfe MV |
634 | #define PERM(x) scm_permanent_object(x) |
635 | ||
636 | SCM module_type = SCM_VARIABLE_REF (scm_c_lookup ("module-type")); | |
637 | scm_module_tag = (SCM_CELL_WORD_1 (module_type) + scm_tc3_cons_gloc); | |
d02b98e9 MV |
638 | |
639 | resolve_module_var = PERM (scm_c_lookup ("resolve-module")); | |
640 | process_define_module_var = PERM (scm_c_lookup ("process-define-module")); | |
641 | process_use_modules_var = PERM (scm_c_lookup ("process-use-modules")); | |
642 | module_export_x_var = PERM (scm_c_lookup ("module-export!")); | |
643 | the_root_module_var = PERM (scm_c_lookup ("the-root-module")); | |
644 | ||
645 | #if SCM_DEBUG_DEPRECATED == 0 | |
646 | ||
86d31dfe MV |
647 | module_prefix = PERM (SCM_LIST2 (scm_sym_app, scm_sym_modules)); |
648 | make_modules_in_var = PERM (scm_c_lookup ("make-modules-in")); | |
86d31dfe MV |
649 | root_module_lookup_closure = |
650 | PERM (scm_module_lookup_closure (SCM_VARIABLE_REF (the_root_module_var))); | |
d02b98e9 | 651 | beautify_user_module_x_var = PERM (scm_c_lookup ("beautify-user-module!")); |
86d31dfe | 652 | try_module_autoload_var = PERM (scm_c_lookup ("try-module-autoload")); |
d02b98e9 MV |
653 | |
654 | #endif | |
655 | ||
e3365c07 | 656 | scm_module_system_booted_p = 1; |
1ffa265b | 657 | } |
89e00824 | 658 | |
d02b98e9 MV |
659 | #if SCM_DEBUG_DEPRECATED == 0 |
660 | ||
661 | SCM | |
662 | scm_the_root_module () | |
663 | { | |
664 | scm_c_issue_deprecation_warning ("`scm_the_root_module' is deprecated. " | |
665 | "Use `scm_c_resolve_module (\"guile\") " | |
666 | "instead."); | |
667 | ||
668 | return the_root_module (); | |
669 | } | |
670 | ||
671 | static SCM | |
672 | scm_module_full_name (SCM name) | |
673 | { | |
674 | if (SCM_EQ_P (SCM_CAR (name), scm_sym_app)) | |
675 | return name; | |
676 | else | |
677 | return scm_append (SCM_LIST2 (module_prefix, name)); | |
678 | } | |
679 | ||
680 | SCM | |
681 | scm_make_module (SCM name) | |
682 | { | |
683 | scm_c_issue_deprecation_warning ("`scm_make_module' is deprecated. " | |
684 | "Use `scm_c_define_module instead."); | |
685 | ||
686 | return scm_apply (SCM_VARIABLE_REF (make_modules_in_var), | |
687 | SCM_LIST2 (scm_the_root_module (), | |
688 | scm_module_full_name (name)), | |
689 | SCM_EOL); | |
690 | } | |
691 | ||
692 | SCM | |
693 | scm_ensure_user_module (SCM module) | |
694 | { | |
695 | scm_c_issue_deprecation_warning ("`scm_ensure_user_module' is deprecated. " | |
696 | "Use `scm_c_define_module instead."); | |
697 | ||
698 | scm_apply (SCM_VARIABLE_REF (beautify_user_module_x_var), | |
699 | SCM_LIST1 (module), SCM_EOL); | |
700 | return SCM_UNSPECIFIED; | |
701 | } | |
702 | ||
703 | SCM | |
704 | scm_load_scheme_module (SCM name) | |
705 | { | |
706 | scm_c_issue_deprecation_warning ("`scm_load_scheme_module' is deprecated. " | |
707 | "Use `scm_c_resolve_module instead."); | |
708 | ||
709 | return scm_apply (SCM_VARIABLE_REF (try_module_autoload_var), | |
710 | SCM_LIST1 (name), SCM_EOL); | |
711 | } | |
712 | ||
713 | #endif | |
714 | ||
89e00824 ML |
715 | /* |
716 | Local Variables: | |
717 | c-file-style: "gnu" | |
718 | End: | |
719 | */ |