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726d810a | 1 | /* Copyright (C) 1995,1996,1997,1999,2000,2001 Free Software Foundation, Inc. |
0f2d19dd JB |
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 | |
82892bed JB |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, |
16 | * Boston, MA 02111-1307 USA | |
0f2d19dd JB |
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. | |
82892bed | 40 | * If you do not wish that, delete this exception notice. */ |
1bbd0b84 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 | ||
0f2d19dd JB |
45 | \f |
46 | ||
a0599745 | 47 | #include "libguile/_scm.h" |
0f2d19dd | 48 | |
a0599745 MD |
49 | #include "libguile/objects.h" |
50 | #include "libguile/strings.h" | |
51 | #include "libguile/vectors.h" | |
0717dfd8 | 52 | #include "libguile/smob.h" |
c88a8162 | 53 | #include "libguile/deprecation.h" |
bdc88419 | 54 | |
a0599745 MD |
55 | #include "libguile/validate.h" |
56 | #include "libguile/procs.h" | |
0f2d19dd JB |
57 | \f |
58 | ||
59 | ||
60 | /* {Procedures} | |
61 | */ | |
62 | ||
9de33deb MD |
63 | scm_subr_entry *scm_subr_table; |
64 | ||
98f9c984 | 65 | /* libguile contained approx. 700 primitive procedures on 24 Aug 1999. */ |
9de33deb | 66 | |
7c582ec9 MG |
67 | /* Increased to 800 on 2001-05-07 -- Guile now has 779 primitives on |
68 | startup, 786 with guile-readline. 'martin */ | |
69 | ||
9de33deb | 70 | int scm_subr_table_size = 0; |
7c582ec9 | 71 | int scm_subr_table_room = 800; |
1cc91f1b | 72 | |
0f2d19dd | 73 | SCM |
c88a8162 | 74 | scm_c_make_subr (const char *name, int type, SCM (*fcn) ()) |
0f2d19dd | 75 | { |
0f2d19dd | 76 | register SCM z; |
9de33deb MD |
77 | int entry; |
78 | ||
79 | if (scm_subr_table_size == scm_subr_table_room) | |
80 | { | |
98f9c984 JB |
81 | scm_sizet new_size = scm_subr_table_room * 3 / 2; |
82 | void *new_table | |
83 | = scm_must_realloc ((char *) scm_subr_table, | |
84 | sizeof (scm_subr_entry) * scm_subr_table_room, | |
85 | sizeof (scm_subr_entry) * new_size, | |
221c6497 | 86 | "scm_subr_table"); |
9de33deb MD |
87 | scm_subr_table = new_table; |
88 | scm_subr_table_room = new_size; | |
89 | } | |
90 | ||
0f2d19dd | 91 | SCM_NEWCELL (z); |
c88a8162 | 92 | |
9de33deb MD |
93 | entry = scm_subr_table_size; |
94 | scm_subr_table[entry].handle = z; | |
c88a8162 | 95 | scm_subr_table[entry].name = scm_str2symbol (name); |
9de33deb | 96 | scm_subr_table[entry].generic = 0; |
23a62df4 | 97 | scm_subr_table[entry].properties = SCM_EOL; |
9de33deb | 98 | |
2d9cdf4e | 99 | SCM_SET_SUBRF (z, fcn); |
54778cd3 | 100 | SCM_SET_CELL_TYPE (z, (entry << 8) + type); |
9de33deb MD |
101 | scm_subr_table_size++; |
102 | ||
0f2d19dd JB |
103 | return z; |
104 | } | |
105 | ||
c88a8162 MV |
106 | SCM |
107 | scm_c_define_subr (const char *name, int type, SCM (*fcn) ()) | |
108 | { | |
109 | SCM subr = scm_c_make_subr (name, type, fcn); | |
110 | scm_define (SCM_SUBR_ENTRY(subr).name, subr); | |
111 | return subr; | |
112 | } | |
113 | ||
9de33deb MD |
114 | /* This function isn't currently used since subrs are never freed. */ |
115 | /* *fixme* Need mutex here. */ | |
116 | void | |
117 | scm_free_subr_entry (SCM subr) | |
118 | { | |
119 | int entry = SCM_SUBRNUM (subr); | |
120 | /* Move last entry in table to the free position */ | |
121 | scm_subr_table[entry] = scm_subr_table[scm_subr_table_size - 1]; | |
122 | SCM_SET_SUBRNUM (scm_subr_table[entry].handle, entry); | |
123 | scm_subr_table_size--; | |
124 | } | |
1cc91f1b | 125 | |
c88a8162 MV |
126 | SCM |
127 | scm_c_make_subr_with_generic (const char *name, | |
128 | int type, SCM (*fcn) (), SCM *gf) | |
0f2d19dd | 129 | { |
c88a8162 MV |
130 | SCM subr = scm_c_make_subr (name, type, fcn); |
131 | SCM_SUBR_ENTRY(subr).generic = gf; | |
132 | return subr; | |
0f2d19dd JB |
133 | } |
134 | ||
9de33deb | 135 | SCM |
c88a8162 MV |
136 | scm_c_define_subr_with_generic (const char *name, |
137 | int type, SCM (*fcn) (), SCM *gf) | |
9de33deb | 138 | { |
c88a8162 MV |
139 | SCM subr = scm_c_make_subr_with_generic (name, type, fcn, gf); |
140 | scm_define (SCM_SUBR_ENTRY(subr).name, subr); | |
9de33deb MD |
141 | return subr; |
142 | } | |
143 | ||
144 | void | |
145 | scm_mark_subr_table () | |
146 | { | |
147 | int i; | |
148 | for (i = 0; i < scm_subr_table_size; ++i) | |
149 | { | |
fd336365 | 150 | SCM_SETGCMARK (scm_subr_table[i].name); |
9de33deb MD |
151 | if (scm_subr_table[i].generic && *scm_subr_table[i].generic) |
152 | scm_gc_mark (*scm_subr_table[i].generic); | |
23a62df4 DH |
153 | if (SCM_NIMP (scm_subr_table[i].properties)) |
154 | scm_gc_mark (scm_subr_table[i].properties); | |
9de33deb MD |
155 | } |
156 | } | |
1cc91f1b | 157 | |
9de33deb MD |
158 | |
159 | #ifdef CCLO | |
0f2d19dd | 160 | SCM |
1bbd0b84 | 161 | scm_makcclo (SCM proc, long len) |
0f2d19dd | 162 | { |
74cc8503 DH |
163 | scm_bits_t *base = scm_must_malloc (len * sizeof (scm_bits_t), "compiled-closure"); |
164 | unsigned long i; | |
0f2d19dd | 165 | SCM s; |
74cc8503 DH |
166 | |
167 | for (i = 0; i < len; ++i) | |
168 | base [i] = SCM_UNPACK (SCM_UNSPECIFIED); | |
169 | ||
0f2d19dd JB |
170 | SCM_NEWCELL (s); |
171 | SCM_DEFER_INTS; | |
74cc8503 DH |
172 | SCM_SET_CCLO_BASE (s, base); |
173 | SCM_SET_CCLO_LENGTH (s, len); | |
174 | SCM_SET_CCLO_SUBR (s, proc); | |
0f2d19dd JB |
175 | SCM_ALLOW_INTS; |
176 | return s; | |
177 | } | |
d88094f9 MD |
178 | |
179 | /* Undocumented debugging procedure */ | |
180 | #ifdef GUILE_DEBUG | |
a1ec6916 | 181 | SCM_DEFINE (scm_make_cclo, "make-cclo", 2, 0, 0, |
1bbd0b84 | 182 | (SCM proc, SCM len), |
8cf97abf MG |
183 | "Create a compiled closure for @var{proc}, which reserves\n" |
184 | "@var{len} objects for its usage.") | |
1bbd0b84 | 185 | #define FUNC_NAME s_scm_make_cclo |
d88094f9 MD |
186 | { |
187 | return scm_makcclo (proc, SCM_INUM (len)); | |
188 | } | |
1bbd0b84 | 189 | #undef FUNC_NAME |
d88094f9 | 190 | #endif |
0f2d19dd JB |
191 | #endif |
192 | ||
193 | ||
194 | ||
3b3b36dd | 195 | SCM_DEFINE (scm_procedure_p, "procedure?", 1, 0, 0, |
8cf97abf MG |
196 | (SCM obj), |
197 | "Return @code{#t} if @var{obj} is a procedure.") | |
1bbd0b84 | 198 | #define FUNC_NAME s_scm_procedure_p |
0f2d19dd JB |
199 | { |
200 | if (SCM_NIMP (obj)) | |
201 | switch (SCM_TYP7 (obj)) | |
202 | { | |
bdc88419 MD |
203 | case scm_tcs_cons_gloc: |
204 | if (!SCM_I_OPERATORP (obj)) | |
205 | break; | |
0f2d19dd | 206 | case scm_tcs_closures: |
0f2d19dd JB |
207 | case scm_tcs_subrs: |
208 | #ifdef CCLO | |
209 | case scm_tc7_cclo: | |
210 | #endif | |
b4cd6492 | 211 | case scm_tc7_pws: |
0f2d19dd | 212 | return SCM_BOOL_T; |
0717dfd8 KN |
213 | case scm_tc7_smob: |
214 | return SCM_BOOL (SCM_SMOB_DESCRIPTOR (obj).apply); | |
0f2d19dd JB |
215 | default: |
216 | return SCM_BOOL_F; | |
217 | } | |
218 | return SCM_BOOL_F; | |
219 | } | |
1bbd0b84 | 220 | #undef FUNC_NAME |
0f2d19dd | 221 | |
3b3b36dd | 222 | SCM_DEFINE (scm_closure_p, "closure?", 1, 0, 0, |
1bbd0b84 | 223 | (SCM obj), |
8cf97abf | 224 | "Return @code{#t} if @var{obj} is a closure.") |
1bbd0b84 | 225 | #define FUNC_NAME s_scm_closure_p |
ecdb5eb2 | 226 | { |
726d810a | 227 | return SCM_BOOL (SCM_CLOSUREP (obj)); |
ecdb5eb2 | 228 | } |
1bbd0b84 | 229 | #undef FUNC_NAME |
ecdb5eb2 | 230 | |
3b3b36dd | 231 | SCM_DEFINE (scm_thunk_p, "thunk?", 1, 0, 0, |
8cf97abf MG |
232 | (SCM obj), |
233 | "Return @code{#t} if @var{obj} is a thunk.") | |
1bbd0b84 | 234 | #define FUNC_NAME s_scm_thunk_p |
44bd53b9 MD |
235 | { |
236 | if (SCM_NIMP (obj)) | |
b4cd6492 MD |
237 | { |
238 | again: | |
239 | switch (SCM_TYP7 (obj)) | |
240 | { | |
241 | case scm_tcs_closures: | |
726d810a | 242 | return SCM_BOOL (!SCM_CONSP (SCM_CLOSURE_FORMALS (obj))); |
b4cd6492 MD |
243 | case scm_tc7_subr_0: |
244 | case scm_tc7_subr_1o: | |
245 | case scm_tc7_lsubr: | |
246 | case scm_tc7_rpsubr: | |
247 | case scm_tc7_asubr: | |
44bd53b9 | 248 | #ifdef CCLO |
b4cd6492 | 249 | case scm_tc7_cclo: |
44bd53b9 | 250 | #endif |
b4cd6492 MD |
251 | return SCM_BOOL_T; |
252 | case scm_tc7_pws: | |
253 | obj = SCM_PROCEDURE (obj); | |
254 | goto again; | |
255 | default: | |
256 | ; | |
257 | } | |
258 | } | |
44bd53b9 MD |
259 | return SCM_BOOL_F; |
260 | } | |
1bbd0b84 | 261 | #undef FUNC_NAME |
44bd53b9 | 262 | |
9de33deb MD |
263 | /* Only used internally. */ |
264 | int | |
265 | scm_subr_p (SCM obj) | |
266 | { | |
267 | if (SCM_NIMP (obj)) | |
268 | switch (SCM_TYP7 (obj)) | |
269 | { | |
270 | case scm_tcs_subrs: | |
271 | return 1; | |
272 | default: | |
273 | ; | |
274 | } | |
275 | return 0; | |
276 | } | |
277 | ||
3b3b36dd | 278 | SCM_DEFINE (scm_procedure_documentation, "procedure-documentation", 1, 0, 0, |
1bbd0b84 | 279 | (SCM proc), |
b380b885 MD |
280 | "Return the documentation string associated with @code{proc}. By\n" |
281 | "convention, if a procedure contains more than one expression and the\n" | |
282 | "first expression is a string constant, that string is assumed to contain\n" | |
283 | "documentation for that procedure.") | |
1bbd0b84 | 284 | #define FUNC_NAME s_scm_procedure_documentation |
c2c82fba MD |
285 | { |
286 | SCM code; | |
5f144b10 | 287 | SCM_ASSERT (SCM_EQ_P (scm_procedure_p (proc), SCM_BOOL_T) && SCM_NIMP (proc), |
9a09deb1 | 288 | proc, SCM_ARG1, FUNC_NAME); |
c2c82fba MD |
289 | switch (SCM_TYP7 (proc)) |
290 | { | |
291 | case scm_tcs_closures: | |
292 | code = SCM_CDR (SCM_CODE (proc)); | |
293 | if (SCM_IMP (SCM_CDR (code))) | |
294 | return SCM_BOOL_F; | |
295 | code = SCM_CAR (code); | |
296 | if (SCM_IMP (code)) | |
297 | return SCM_BOOL_F; | |
298 | if (SCM_STRINGP (code)) | |
299 | return code; | |
300 | default: | |
301 | return SCM_BOOL_F; | |
302 | /* | |
303 | case scm_tcs_subrs: | |
304 | #ifdef CCLO | |
305 | case scm_tc7_cclo: | |
306 | #endif | |
307 | */ | |
308 | } | |
309 | } | |
1bbd0b84 | 310 | #undef FUNC_NAME |
c2c82fba | 311 | |
0f2d19dd | 312 | |
b4cd6492 MD |
313 | /* Procedure-with-setter |
314 | */ | |
315 | ||
a1ec6916 | 316 | SCM_DEFINE (scm_procedure_with_setter_p, "procedure-with-setter?", 1, 0, 0, |
1bbd0b84 | 317 | (SCM obj), |
8cf97abf MG |
318 | "Return @code{#t} if @var{obj} is a procedure with an\n" |
319 | "associated setter procedure.") | |
1bbd0b84 | 320 | #define FUNC_NAME s_scm_procedure_with_setter_p |
b4cd6492 | 321 | { |
0c95b57d | 322 | return SCM_BOOL(SCM_PROCEDURE_WITH_SETTER_P (obj)); |
b4cd6492 | 323 | } |
1bbd0b84 | 324 | #undef FUNC_NAME |
b4cd6492 | 325 | |
a1ec6916 | 326 | SCM_DEFINE (scm_make_procedure_with_setter, "make-procedure-with-setter", 2, 0, 0, |
1bbd0b84 | 327 | (SCM procedure, SCM setter), |
8cf97abf MG |
328 | "Create a new procedure which behaves like @var{procedure}, but\n" |
329 | "with the associated setter @var{setter}.") | |
1bbd0b84 | 330 | #define FUNC_NAME s_scm_make_procedure_with_setter |
b4cd6492 MD |
331 | { |
332 | SCM z; | |
e1f8eb2b MD |
333 | SCM_VALIDATE_PROC (1, procedure); |
334 | SCM_VALIDATE_PROC (2, setter); | |
335 | SCM_NEWCELL2 (z); | |
b4cd6492 | 336 | SCM_ENTER_A_SECTION; |
0cbaaf0b DH |
337 | SCM_SET_CELL_OBJECT_1 (z, procedure); |
338 | SCM_SET_CELL_OBJECT_2 (z, setter); | |
54778cd3 | 339 | SCM_SET_CELL_TYPE (z, scm_tc7_pws); |
b4cd6492 MD |
340 | SCM_EXIT_A_SECTION; |
341 | return z; | |
342 | } | |
1bbd0b84 | 343 | #undef FUNC_NAME |
b4cd6492 | 344 | |
a1ec6916 | 345 | SCM_DEFINE (scm_procedure, "procedure", 1, 0, 0, |
1bbd0b84 | 346 | (SCM proc), |
8cf97abf MG |
347 | "Return the procedure of @var{proc}, which must be either a\n" |
348 | "procedure with setter, or an operator struct.") | |
1bbd0b84 | 349 | #define FUNC_NAME s_scm_procedure |
b4cd6492 | 350 | { |
e1f8eb2b | 351 | SCM_VALIDATE_NIM (1, proc); |
b4cd6492 MD |
352 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
353 | return SCM_PROCEDURE (proc); | |
354 | else if (SCM_STRUCTP (proc)) | |
355 | { | |
1bbd0b84 | 356 | SCM_ASSERT (SCM_I_OPERATORP (proc), proc, SCM_ARG1, FUNC_NAME); |
b4cd6492 MD |
357 | return proc; |
358 | } | |
1bbd0b84 | 359 | SCM_WRONG_TYPE_ARG (1, proc); |
4260a7fc | 360 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 361 | } |
1bbd0b84 | 362 | #undef FUNC_NAME |
b4cd6492 | 363 | |
f5267231 | 364 | SCM_GPROC (s_setter, "setter", 1, 0, 0, scm_setter, g_setter); |
b4cd6492 MD |
365 | |
366 | SCM | |
367 | scm_setter (SCM proc) | |
368 | { | |
f5267231 | 369 | SCM_GASSERT1 (SCM_NIMP (proc), g_setter, proc, SCM_ARG1, s_setter); |
b4cd6492 MD |
370 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
371 | return SCM_SETTER (proc); | |
372 | else if (SCM_STRUCTP (proc)) | |
373 | { | |
c72a774a | 374 | SCM setter; |
f5267231 MD |
375 | SCM_GASSERT1 (SCM_I_OPERATORP (proc), |
376 | g_setter, proc, SCM_ARG1, s_setter); | |
c72a774a MD |
377 | setter = (SCM_I_ENTITYP (proc) |
378 | ? SCM_ENTITY_SETTER (proc) | |
379 | : SCM_OPERATOR_SETTER (proc)); | |
380 | if (SCM_NIMP (setter)) | |
381 | return setter; | |
382 | /* fall through */ | |
b4cd6492 | 383 | } |
f5267231 | 384 | SCM_WTA_DISPATCH_1 (g_setter, proc, SCM_ARG1, s_setter); |
b038d983 | 385 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 386 | } |
1cc91f1b | 387 | |
9de33deb | 388 | |
9de33deb MD |
389 | void |
390 | scm_init_subr_table () | |
391 | { | |
392 | scm_subr_table | |
393 | = ((scm_subr_entry *) | |
394 | scm_must_malloc (sizeof (scm_subr_entry) * scm_subr_table_room, | |
395 | "scm_subr_table")); | |
396 | } | |
1cc91f1b | 397 | |
0f2d19dd JB |
398 | void |
399 | scm_init_procs () | |
0f2d19dd | 400 | { |
8dc9439f | 401 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 402 | #include "libguile/procs.x" |
8dc9439f | 403 | #endif |
0f2d19dd | 404 | } |
89e00824 | 405 | |
c88a8162 MV |
406 | #if SCM_DEBUG_DEPRECATED == 0 |
407 | ||
408 | SCM | |
409 | scm_make_subr_opt (const char *name, int type, SCM (*fcn) (), int set) | |
410 | { | |
411 | scm_c_issue_deprecation_warning | |
412 | ("`scm_make_subr_opt' is deprecated. Use `scm_c_make_subr' or " | |
413 | "`scm_c_define_subr' instead."); | |
414 | ||
415 | if (set) | |
416 | return scm_c_define_subr (name, type, fcn); | |
417 | else | |
418 | return scm_c_make_subr (name, type, fcn); | |
419 | } | |
420 | ||
421 | SCM | |
422 | scm_make_subr (const char *name, int type, SCM (*fcn) ()) | |
423 | { | |
424 | scm_c_issue_deprecation_warning | |
425 | ("`scm_make_subr' is deprecated. Use `scm_c_define_subr' instead."); | |
426 | ||
427 | return scm_c_define_subr (name, type, fcn); | |
428 | } | |
429 | ||
430 | SCM | |
431 | scm_make_subr_with_generic (const char *name, int type, SCM (*fcn) (), SCM *gf) | |
432 | { | |
433 | scm_c_issue_deprecation_warning | |
434 | ("`scm_make_subr_with_generic' is deprecated. Use " | |
435 | "`scm_c_define_subr_with_generic' instead."); | |
436 | ||
aac7e260 | 437 | return scm_c_define_subr_with_generic (name, type, fcn, gf); |
c88a8162 MV |
438 | } |
439 | ||
440 | #endif /* !SCM_DEBUG_DEPRECATION */ | |
441 | ||
89e00824 ML |
442 | /* |
443 | Local Variables: | |
444 | c-file-style: "gnu" | |
445 | End: | |
446 | */ |