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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 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 | 64 | |
92c2555f | 65 | scm_t_bits scm_module_tag; |
e3365c07 | 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 | { |
fdc28395 | 165 | return scm_call_1 (SCM_VARIABLE_REF (resolve_module_var), name); |
55000e5f MV |
166 | } |
167 | ||
168 | SCM | |
d02b98e9 MV |
169 | scm_c_define_module (const char *name, |
170 | void (*init)(void *), void *data) | |
55000e5f | 171 | { |
fdc28395 | 172 | SCM module = scm_call_1 (SCM_VARIABLE_REF (process_define_module_var), |
1afff620 | 173 | scm_list_1 (convert_module_name (name))); |
d02b98e9 MV |
174 | if (init) |
175 | scm_c_call_with_current_module (module, (SCM (*)(void*))init, data); | |
176 | return module; | |
55000e5f MV |
177 | } |
178 | ||
d02b98e9 MV |
179 | void |
180 | scm_c_use_module (const char *name) | |
90184345 | 181 | { |
fdc28395 | 182 | scm_call_1 (SCM_VARIABLE_REF (process_use_modules_var), |
1afff620 | 183 | scm_list_1 (convert_module_name (name))); |
90184345 MD |
184 | } |
185 | ||
d02b98e9 | 186 | static SCM module_export_x_var; |
281004cc | 187 | |
d02b98e9 MV |
188 | void |
189 | scm_c_export (const char *name, ...) | |
281004cc | 190 | { |
d02b98e9 MV |
191 | va_list ap; |
192 | SCM names = scm_cons (scm_str2symbol (name), SCM_EOL); | |
193 | SCM *tail = SCM_CDRLOC (names); | |
194 | va_start (ap, name); | |
195 | while (1) | |
196 | { | |
197 | const char *n = va_arg (ap, const char *); | |
198 | if (n == NULL) | |
199 | break; | |
200 | *tail = scm_cons (scm_str2symbol (n), SCM_EOL); | |
201 | tail = SCM_CDRLOC (*tail); | |
202 | } | |
fdc28395 KN |
203 | scm_call_2 (SCM_VARIABLE_REF (module_export_x_var), |
204 | scm_current_module (), names); | |
281004cc MD |
205 | } |
206 | ||
e3365c07 | 207 | /* Environments */ |
d164a5af MD |
208 | |
209 | SCM | |
6e8d25a6 | 210 | scm_top_level_env (SCM thunk) |
d164a5af MD |
211 | { |
212 | if (SCM_IMP (thunk)) | |
213 | return SCM_EOL; | |
214 | else | |
215 | return scm_cons (thunk, SCM_EOL); | |
216 | } | |
217 | ||
218 | SCM | |
219 | scm_env_top_level (SCM env) | |
220 | { | |
221 | while (SCM_NIMP (env)) | |
222 | { | |
223 | if (!SCM_CONSP (SCM_CAR (env)) | |
224 | && SCM_NFALSEP (scm_procedure_p (SCM_CAR (env)))) | |
c15c33ee | 225 | return SCM_CAR (env); |
d164a5af MD |
226 | env = SCM_CDR (env); |
227 | } | |
228 | return SCM_BOOL_F; | |
229 | } | |
230 | ||
86d31dfe MV |
231 | SCM_SYMBOL (sym_module, "module"); |
232 | ||
d02b98e9 MV |
233 | static SCM the_root_module_var; |
234 | ||
235 | static SCM | |
236 | the_root_module () | |
237 | { | |
238 | if (scm_module_system_booted_p) | |
239 | return SCM_VARIABLE_REF (the_root_module_var); | |
240 | else | |
241 | return SCM_BOOL_F; | |
242 | } | |
243 | ||
86d31dfe MV |
244 | SCM |
245 | scm_lookup_closure_module (SCM proc) | |
246 | { | |
247 | if (SCM_FALSEP (proc)) | |
d02b98e9 | 248 | return the_root_module (); |
86d31dfe MV |
249 | else if (SCM_EVAL_CLOSURE_P (proc)) |
250 | return SCM_PACK (SCM_SMOB_DATA (proc)); | |
251 | else | |
252 | { | |
253 | SCM mod = scm_procedure_property (proc, sym_module); | |
254 | if (mod == SCM_BOOL_F) | |
d02b98e9 | 255 | mod = the_root_module (); |
86d31dfe MV |
256 | return mod; |
257 | } | |
258 | } | |
259 | ||
e24ca538 MV |
260 | SCM_DEFINE (scm_env_module, "env-module", 1, 0, 0, |
261 | (SCM env), | |
262 | "Return the module of @var{ENV}, a lexical environment.") | |
263 | #define FUNC_NAME s_scm_env_module | |
86d31dfe MV |
264 | { |
265 | return scm_lookup_closure_module (scm_env_top_level (env)); | |
266 | } | |
e24ca538 | 267 | #undef FUNC_NAME |
86d31dfe | 268 | |
152abe96 MD |
269 | /* |
270 | * C level implementation of the standard eval closure | |
271 | * | |
272 | * This increases loading speed substantially. | |
273 | * The code will be replaced by the low-level environments in next release. | |
274 | */ | |
275 | ||
86d31dfe | 276 | static SCM module_make_local_var_x_var; |
152abe96 MD |
277 | |
278 | static SCM | |
279 | module_variable (SCM module, SCM sym) | |
280 | { | |
281 | /* 1. Check module obarray */ | |
e3365c07 | 282 | SCM b = scm_hashq_ref (SCM_MODULE_OBARRAY (module), sym, SCM_UNDEFINED); |
152abe96 MD |
283 | if (SCM_VARIABLEP (b)) |
284 | return b; | |
285 | { | |
e3365c07 | 286 | SCM binder = SCM_MODULE_BINDER (module); |
152abe96 MD |
287 | if (SCM_NFALSEP (binder)) |
288 | /* 2. Custom binder */ | |
289 | { | |
fdc28395 | 290 | b = scm_call_3 (binder, module, sym, SCM_BOOL_F); |
152abe96 MD |
291 | if (SCM_NFALSEP (b)) |
292 | return b; | |
293 | } | |
294 | } | |
295 | { | |
296 | /* 3. Search the use list */ | |
e3365c07 | 297 | SCM uses = SCM_MODULE_USES (module); |
152abe96 MD |
298 | while (SCM_CONSP (uses)) |
299 | { | |
300 | b = module_variable (SCM_CAR (uses), sym); | |
301 | if (SCM_NFALSEP (b)) | |
302 | return b; | |
303 | uses = SCM_CDR (uses); | |
304 | } | |
305 | return SCM_BOOL_F; | |
306 | } | |
307 | } | |
308 | ||
92c2555f | 309 | scm_t_bits scm_tc16_eval_closure; |
152abe96 | 310 | |
86d31dfe MV |
311 | #define SCM_F_EVAL_CLOSURE_INTERFACE (1<<16) |
312 | #define SCM_EVAL_CLOSURE_INTERFACE_P(e) \ | |
313 | (SCM_CELL_WORD_0 (e) & SCM_F_EVAL_CLOSURE_INTERFACE) | |
314 | ||
fb43bf74 KN |
315 | /* NOTE: This function may be called by a smob application |
316 | or from another C function directly. */ | |
317 | SCM | |
318 | scm_eval_closure_lookup (SCM eclo, SCM sym, SCM definep) | |
152abe96 | 319 | { |
fb43bf74 | 320 | SCM module = SCM_PACK (SCM_SMOB_DATA (eclo)); |
152abe96 | 321 | if (SCM_NFALSEP (definep)) |
86d31dfe MV |
322 | { |
323 | if (SCM_EVAL_CLOSURE_INTERFACE_P (eclo)) | |
324 | return SCM_BOOL_F; | |
fdc28395 KN |
325 | return scm_call_2 (SCM_VARIABLE_REF (module_make_local_var_x_var), |
326 | module, sym); | |
86d31dfe | 327 | } |
152abe96 MD |
328 | else |
329 | return module_variable (module, sym); | |
330 | } | |
331 | ||
332 | SCM_DEFINE (scm_standard_eval_closure, "standard-eval-closure", 1, 0, 0, | |
333 | (SCM module), | |
84526793 | 334 | "Return an eval closure for the module @var{module}.") |
152abe96 MD |
335 | #define FUNC_NAME s_scm_standard_eval_closure |
336 | { | |
e841c3e0 | 337 | SCM_RETURN_NEWSMOB (scm_tc16_eval_closure, SCM_UNPACK (module)); |
152abe96 MD |
338 | } |
339 | #undef FUNC_NAME | |
340 | ||
86d31dfe MV |
341 | SCM_DEFINE (scm_standard_interface_eval_closure, |
342 | "standard-interface-eval-closure", 1, 0, 0, | |
343 | (SCM module), | |
344 | "Return a interface eval closure for the module @var{module}. " | |
345 | "Such a closure does not allow new bindings to be added.") | |
346 | #define FUNC_NAME s_scm_standard_interface_eval_closure | |
347 | { | |
348 | SCM_RETURN_NEWSMOB (scm_tc16_eval_closure | SCM_F_EVAL_CLOSURE_INTERFACE, | |
349 | SCM_UNPACK (module)); | |
350 | } | |
351 | #undef FUNC_NAME | |
352 | ||
d02b98e9 MV |
353 | SCM |
354 | scm_module_lookup_closure (SCM module) | |
355 | { | |
356 | if (module == SCM_BOOL_F) | |
357 | return SCM_BOOL_F; | |
358 | else | |
359 | return SCM_MODULE_EVAL_CLOSURE (module); | |
360 | } | |
361 | ||
362 | SCM | |
363 | scm_current_module_lookup_closure () | |
364 | { | |
365 | if (scm_module_system_booted_p) | |
366 | return scm_module_lookup_closure (scm_current_module ()); | |
367 | else | |
368 | return SCM_BOOL_F; | |
369 | } | |
370 | ||
371 | SCM | |
372 | scm_module_transformer (SCM module) | |
373 | { | |
374 | if (module == SCM_BOOL_F) | |
375 | return SCM_BOOL_F; | |
376 | else | |
377 | return SCM_MODULE_TRANSFORMER (module); | |
378 | } | |
379 | ||
380 | SCM | |
381 | scm_current_module_transformer () | |
382 | { | |
383 | if (scm_module_system_booted_p) | |
384 | return scm_module_transformer (scm_current_module ()); | |
385 | else | |
386 | return SCM_BOOL_F; | |
387 | } | |
388 | ||
86d31dfe MV |
389 | /* scm_sym2var |
390 | * | |
391 | * looks up the variable bound to SYM according to PROC. PROC should be | |
392 | * a `eval closure' of some module. | |
393 | * | |
394 | * When no binding exists, and DEFINEP is true, create a new binding | |
395 | * with a initial value of SCM_UNDEFINED. Return `#f' when DEFINEP as | |
396 | * false and no binding exists. | |
397 | * | |
398 | * When PROC is `#f', it is ignored and the binding is searched for in | |
399 | * the scm_pre_modules_obarray (a `eq' hash table). | |
400 | */ | |
401 | ||
402 | SCM scm_pre_modules_obarray; | |
403 | ||
404 | SCM | |
405 | scm_sym2var (SCM sym, SCM proc, SCM definep) | |
406 | #define FUNC_NAME "scm_sym2var" | |
407 | { | |
408 | SCM var; | |
409 | ||
410 | if (SCM_NIMP (proc)) | |
411 | { | |
412 | if (SCM_EVAL_CLOSURE_P (proc)) | |
413 | { | |
414 | /* Bypass evaluator in the standard case. */ | |
415 | var = scm_eval_closure_lookup (proc, sym, definep); | |
416 | } | |
417 | else | |
fdc28395 | 418 | var = scm_call_2 (proc, sym, definep); |
86d31dfe MV |
419 | } |
420 | else | |
421 | { | |
422 | SCM handle; | |
423 | ||
424 | if (definep == SCM_BOOL_F) | |
425 | var = scm_hashq_ref (scm_pre_modules_obarray, sym, SCM_BOOL_F); | |
426 | else | |
427 | { | |
428 | handle = scm_hashq_create_handle_x (scm_pre_modules_obarray, | |
429 | sym, SCM_BOOL_F); | |
430 | var = SCM_CDR (handle); | |
431 | if (var == SCM_BOOL_F) | |
432 | { | |
433 | var = scm_make_variable (SCM_UNDEFINED); | |
434 | #if SCM_ENABLE_VCELLS | |
435 | scm_variable_set_name_hint (var, sym); | |
436 | #endif | |
437 | SCM_SETCDR (handle, var); | |
438 | } | |
439 | } | |
440 | } | |
441 | ||
442 | if (var != SCM_BOOL_F && !SCM_VARIABLEP (var)) | |
1afff620 | 443 | SCM_MISC_ERROR ("~S is not bound to a variable", scm_list_1 (sym)); |
86d31dfe MV |
444 | |
445 | return var; | |
446 | } | |
447 | #undef FUNC_NAME | |
448 | ||
449 | SCM | |
450 | scm_c_module_lookup (SCM module, const char *name) | |
451 | { | |
452 | return scm_module_lookup (module, scm_str2symbol (name)); | |
453 | } | |
454 | ||
455 | SCM | |
456 | scm_module_lookup (SCM module, SCM sym) | |
457 | #define FUNC_NAME "module-lookup" | |
458 | { | |
459 | SCM var; | |
460 | SCM_VALIDATE_MODULE (1, module); | |
461 | ||
462 | var = scm_sym2var (sym, scm_module_lookup_closure (module), SCM_BOOL_F); | |
463 | if (SCM_FALSEP (var)) | |
1afff620 | 464 | SCM_MISC_ERROR ("unbound variable: ~S", scm_list_1 (sym)); |
86d31dfe MV |
465 | return var; |
466 | } | |
467 | #undef FUNC_NAME | |
468 | ||
469 | SCM | |
470 | scm_c_lookup (const char *name) | |
471 | { | |
472 | return scm_lookup (scm_str2symbol (name)); | |
473 | } | |
474 | ||
475 | SCM | |
476 | scm_lookup (SCM sym) | |
477 | { | |
478 | SCM var = | |
479 | scm_sym2var (sym, scm_current_module_lookup_closure (), SCM_BOOL_F); | |
480 | if (SCM_FALSEP (var)) | |
1afff620 | 481 | scm_misc_error ("scm_lookup", "unbound variable: ~S", scm_list_1 (sym)); |
86d31dfe MV |
482 | return var; |
483 | } | |
484 | ||
485 | SCM | |
486 | scm_c_module_define (SCM module, const char *name, SCM value) | |
487 | { | |
488 | return scm_module_define (module, scm_str2symbol (name), value); | |
489 | } | |
490 | ||
491 | SCM | |
492 | scm_module_define (SCM module, SCM sym, SCM value) | |
493 | #define FUNC_NAME "module-define" | |
494 | { | |
495 | SCM var; | |
496 | SCM_VALIDATE_MODULE (1, module); | |
497 | ||
498 | var = scm_sym2var (sym, scm_module_lookup_closure (module), SCM_BOOL_T); | |
499 | SCM_VARIABLE_SET (var, value); | |
500 | return var; | |
501 | } | |
502 | #undef FUNC_NAME | |
503 | ||
504 | SCM | |
505 | scm_c_define (const char *name, SCM value) | |
506 | { | |
507 | return scm_define (scm_str2symbol (name), value); | |
508 | } | |
509 | ||
510 | SCM | |
511 | scm_define (SCM sym, SCM value) | |
512 | { | |
513 | SCM var = | |
514 | scm_sym2var (sym, scm_current_module_lookup_closure (), SCM_BOOL_T); | |
515 | SCM_VARIABLE_SET (var, value); | |
516 | return var; | |
517 | } | |
518 | ||
519 | SCM | |
520 | scm_module_reverse_lookup (SCM module, SCM variable) | |
521 | #define FUNC_NAME "module-reverse-lookup" | |
522 | { | |
523 | SCM obarray; | |
c014a02e | 524 | long i, n; |
86d31dfe MV |
525 | |
526 | if (module == SCM_BOOL_F) | |
527 | obarray = scm_pre_modules_obarray; | |
528 | else | |
529 | { | |
530 | SCM_VALIDATE_MODULE (1, module); | |
531 | obarray = SCM_MODULE_OBARRAY (module); | |
532 | } | |
533 | ||
534 | /* XXX - We do not use scm_hash_fold here to avoid searching the | |
535 | whole obarray. We should have a scm_hash_find procedure. */ | |
536 | ||
537 | n = SCM_VECTOR_LENGTH (obarray); | |
538 | for (i = 0; i < n; ++i) | |
539 | { | |
540 | SCM ls = SCM_VELTS (obarray)[i], handle; | |
541 | while (!SCM_NULLP (ls)) | |
542 | { | |
543 | handle = SCM_CAR (ls); | |
544 | if (SCM_CDR (handle) == variable) | |
545 | return SCM_CAR (handle); | |
546 | ls = SCM_CDR (ls); | |
547 | } | |
548 | } | |
549 | ||
550 | /* Try the `uses' list. | |
551 | */ | |
552 | { | |
553 | SCM uses = SCM_MODULE_USES (module); | |
554 | while (SCM_CONSP (uses)) | |
555 | { | |
556 | SCM sym = scm_module_reverse_lookup (SCM_CAR (uses), variable); | |
557 | if (sym != SCM_BOOL_F) | |
558 | return sym; | |
559 | uses = SCM_CDR (uses); | |
560 | } | |
561 | } | |
562 | ||
563 | return SCM_BOOL_F; | |
564 | } | |
565 | #undef FUNC_NAME | |
566 | ||
567 | SCM_DEFINE (scm_get_pre_modules_obarray, "%get-pre-modules-obarray", 0, 0, 0, | |
568 | (), | |
569 | "Return the obarray that is used for all new bindings before " | |
570 | "the module system is booted. The first call to " | |
571 | "@code{set-current-module} will boot the module system.") | |
572 | #define FUNC_NAME s_scm_get_pre_modules_obarray | |
573 | { | |
574 | return scm_pre_modules_obarray; | |
575 | } | |
576 | #undef FUNC_NAME | |
577 | ||
d02b98e9 MV |
578 | #if SCM_DEBUG_DEPRECATED == 0 |
579 | ||
580 | static SCM root_module_lookup_closure; | |
581 | SCM_SYMBOL (scm_sym_app, "app"); | |
582 | SCM_SYMBOL (scm_sym_modules, "modules"); | |
583 | static SCM module_prefix; | |
584 | static SCM make_modules_in_var; | |
585 | static SCM beautify_user_module_x_var; | |
586 | static SCM try_module_autoload_var; | |
587 | ||
588 | #endif | |
589 | ||
590 | SCM_SYMBOL (scm_sym_system_module, "system-module"); | |
591 | ||
592 | SCM | |
593 | scm_system_module_env_p (SCM env) | |
594 | { | |
595 | SCM proc = scm_env_top_level (env); | |
596 | if (SCM_FALSEP (proc)) | |
597 | return SCM_BOOL_T; | |
598 | return ((SCM_NFALSEP (scm_procedure_property (proc, | |
599 | scm_sym_system_module))) | |
600 | ? SCM_BOOL_T | |
601 | : SCM_BOOL_F); | |
602 | } | |
603 | ||
86d31dfe MV |
604 | void |
605 | scm_modules_prehistory () | |
606 | { | |
607 | scm_pre_modules_obarray | |
608 | = scm_permanent_object (scm_c_make_hash_table (2001)); | |
609 | } | |
610 | ||
1ffa265b MD |
611 | void |
612 | scm_init_modules () | |
613 | { | |
8dc9439f | 614 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 615 | #include "libguile/modules.x" |
8dc9439f | 616 | #endif |
86d31dfe MV |
617 | module_make_local_var_x_var = scm_c_define ("module-make-local-var!", |
618 | SCM_UNDEFINED); | |
e841c3e0 KN |
619 | scm_tc16_eval_closure = scm_make_smob_type ("eval-closure", 0); |
620 | scm_set_smob_mark (scm_tc16_eval_closure, scm_markcdr); | |
621 | scm_set_smob_apply (scm_tc16_eval_closure, scm_eval_closure_lookup, 2, 0, 0); | |
55000e5f MV |
622 | |
623 | the_module = scm_permanent_object (scm_make_fluid ()); | |
1ffa265b MD |
624 | } |
625 | ||
86d31dfe | 626 | static void |
1ffa265b MD |
627 | scm_post_boot_init_modules () |
628 | { | |
86d31dfe MV |
629 | #define PERM(x) scm_permanent_object(x) |
630 | ||
631 | SCM module_type = SCM_VARIABLE_REF (scm_c_lookup ("module-type")); | |
632 | scm_module_tag = (SCM_CELL_WORD_1 (module_type) + scm_tc3_cons_gloc); | |
d02b98e9 MV |
633 | |
634 | resolve_module_var = PERM (scm_c_lookup ("resolve-module")); | |
635 | process_define_module_var = PERM (scm_c_lookup ("process-define-module")); | |
636 | process_use_modules_var = PERM (scm_c_lookup ("process-use-modules")); | |
637 | module_export_x_var = PERM (scm_c_lookup ("module-export!")); | |
638 | the_root_module_var = PERM (scm_c_lookup ("the-root-module")); | |
639 | ||
640 | #if SCM_DEBUG_DEPRECATED == 0 | |
641 | ||
1afff620 | 642 | module_prefix = PERM (scm_list_2 (scm_sym_app, scm_sym_modules)); |
86d31dfe | 643 | make_modules_in_var = PERM (scm_c_lookup ("make-modules-in")); |
86d31dfe MV |
644 | root_module_lookup_closure = |
645 | PERM (scm_module_lookup_closure (SCM_VARIABLE_REF (the_root_module_var))); | |
d02b98e9 | 646 | beautify_user_module_x_var = PERM (scm_c_lookup ("beautify-user-module!")); |
86d31dfe | 647 | try_module_autoload_var = PERM (scm_c_lookup ("try-module-autoload")); |
d02b98e9 MV |
648 | |
649 | #endif | |
650 | ||
e3365c07 | 651 | scm_module_system_booted_p = 1; |
1ffa265b | 652 | } |
89e00824 | 653 | |
d02b98e9 MV |
654 | #if SCM_DEBUG_DEPRECATED == 0 |
655 | ||
656 | SCM | |
657 | scm_the_root_module () | |
658 | { | |
659 | scm_c_issue_deprecation_warning ("`scm_the_root_module' is deprecated. " | |
660 | "Use `scm_c_resolve_module (\"guile\") " | |
661 | "instead."); | |
662 | ||
663 | return the_root_module (); | |
664 | } | |
665 | ||
666 | static SCM | |
667 | scm_module_full_name (SCM name) | |
668 | { | |
669 | if (SCM_EQ_P (SCM_CAR (name), scm_sym_app)) | |
670 | return name; | |
671 | else | |
1afff620 | 672 | return scm_append (scm_list_2 (module_prefix, name)); |
d02b98e9 MV |
673 | } |
674 | ||
675 | SCM | |
676 | scm_make_module (SCM name) | |
677 | { | |
678 | scm_c_issue_deprecation_warning ("`scm_make_module' is deprecated. " | |
679 | "Use `scm_c_define_module instead."); | |
680 | ||
fdc28395 KN |
681 | return scm_call_2 (SCM_VARIABLE_REF (make_modules_in_var), |
682 | scm_the_root_module (), | |
683 | scm_module_full_name (name)); | |
d02b98e9 MV |
684 | } |
685 | ||
686 | SCM | |
687 | scm_ensure_user_module (SCM module) | |
688 | { | |
689 | scm_c_issue_deprecation_warning ("`scm_ensure_user_module' is deprecated. " | |
690 | "Use `scm_c_define_module instead."); | |
691 | ||
fdc28395 | 692 | scm_call_1 (SCM_VARIABLE_REF (beautify_user_module_x_var), module); |
d02b98e9 MV |
693 | return SCM_UNSPECIFIED; |
694 | } | |
695 | ||
696 | SCM | |
697 | scm_load_scheme_module (SCM name) | |
698 | { | |
699 | scm_c_issue_deprecation_warning ("`scm_load_scheme_module' is deprecated. " | |
700 | "Use `scm_c_resolve_module instead."); | |
701 | ||
fdc28395 | 702 | return scm_call_1 (SCM_VARIABLE_REF (try_module_autoload_var), name); |
d02b98e9 MV |
703 | } |
704 | ||
705 | #endif | |
706 | ||
89e00824 ML |
707 | /* |
708 | Local Variables: | |
709 | c-file-style: "gnu" | |
710 | End: | |
711 | */ |