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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 | 41 | |
1bbd0b84 | 42 | |
0f2d19dd JB |
43 | \f |
44 | ||
a0599745 | 45 | #include "libguile/_scm.h" |
0f2d19dd | 46 | |
a0599745 MD |
47 | #include "libguile/objects.h" |
48 | #include "libguile/strings.h" | |
49 | #include "libguile/vectors.h" | |
0717dfd8 | 50 | #include "libguile/smob.h" |
c88a8162 | 51 | #include "libguile/deprecation.h" |
bdc88419 | 52 | |
a0599745 MD |
53 | #include "libguile/validate.h" |
54 | #include "libguile/procs.h" | |
0f2d19dd JB |
55 | \f |
56 | ||
57 | ||
58 | /* {Procedures} | |
59 | */ | |
60 | ||
92c2555f | 61 | scm_t_subr_entry *scm_subr_table; |
9de33deb | 62 | |
98f9c984 | 63 | /* libguile contained approx. 700 primitive procedures on 24 Aug 1999. */ |
9de33deb | 64 | |
7c582ec9 MG |
65 | /* Increased to 800 on 2001-05-07 -- Guile now has 779 primitives on |
66 | startup, 786 with guile-readline. 'martin */ | |
67 | ||
c014a02e ML |
68 | long scm_subr_table_size = 0; |
69 | long scm_subr_table_room = 800; | |
1cc91f1b | 70 | |
0f2d19dd | 71 | SCM |
c014a02e | 72 | scm_c_make_subr (const char *name, long type, SCM (*fcn) ()) |
0f2d19dd | 73 | { |
0f2d19dd | 74 | register SCM z; |
c014a02e | 75 | long entry; |
9de33deb MD |
76 | |
77 | if (scm_subr_table_size == scm_subr_table_room) | |
78 | { | |
c014a02e | 79 | long new_size = scm_subr_table_room * 3 / 2; |
98f9c984 JB |
80 | void *new_table |
81 | = scm_must_realloc ((char *) scm_subr_table, | |
92c2555f MV |
82 | sizeof (scm_t_subr_entry) * scm_subr_table_room, |
83 | sizeof (scm_t_subr_entry) * new_size, | |
221c6497 | 84 | "scm_subr_table"); |
9de33deb MD |
85 | scm_subr_table = new_table; |
86 | scm_subr_table_room = new_size; | |
87 | } | |
88 | ||
0f2d19dd | 89 | SCM_NEWCELL (z); |
c88a8162 | 90 | |
9de33deb MD |
91 | entry = scm_subr_table_size; |
92 | scm_subr_table[entry].handle = z; | |
c88a8162 | 93 | scm_subr_table[entry].name = scm_str2symbol (name); |
9de33deb | 94 | scm_subr_table[entry].generic = 0; |
23a62df4 | 95 | scm_subr_table[entry].properties = SCM_EOL; |
9de33deb | 96 | |
2d9cdf4e | 97 | SCM_SET_SUBRF (z, fcn); |
54778cd3 | 98 | SCM_SET_CELL_TYPE (z, (entry << 8) + type); |
9de33deb MD |
99 | scm_subr_table_size++; |
100 | ||
0f2d19dd JB |
101 | return z; |
102 | } | |
103 | ||
c88a8162 | 104 | SCM |
c014a02e | 105 | scm_c_define_subr (const char *name, long type, SCM (*fcn) ()) |
c88a8162 MV |
106 | { |
107 | SCM subr = scm_c_make_subr (name, type, fcn); | |
108 | scm_define (SCM_SUBR_ENTRY(subr).name, subr); | |
109 | return subr; | |
110 | } | |
111 | ||
9de33deb MD |
112 | /* This function isn't currently used since subrs are never freed. */ |
113 | /* *fixme* Need mutex here. */ | |
114 | void | |
115 | scm_free_subr_entry (SCM subr) | |
116 | { | |
c014a02e | 117 | long entry = SCM_SUBRNUM (subr); |
9de33deb MD |
118 | /* Move last entry in table to the free position */ |
119 | scm_subr_table[entry] = scm_subr_table[scm_subr_table_size - 1]; | |
120 | SCM_SET_SUBRNUM (scm_subr_table[entry].handle, entry); | |
121 | scm_subr_table_size--; | |
122 | } | |
1cc91f1b | 123 | |
c88a8162 MV |
124 | SCM |
125 | scm_c_make_subr_with_generic (const char *name, | |
c014a02e | 126 | long type, SCM (*fcn) (), SCM *gf) |
0f2d19dd | 127 | { |
c88a8162 MV |
128 | SCM subr = scm_c_make_subr (name, type, fcn); |
129 | SCM_SUBR_ENTRY(subr).generic = gf; | |
130 | return subr; | |
0f2d19dd JB |
131 | } |
132 | ||
9de33deb | 133 | SCM |
c88a8162 | 134 | scm_c_define_subr_with_generic (const char *name, |
c014a02e | 135 | long type, SCM (*fcn) (), SCM *gf) |
9de33deb | 136 | { |
c88a8162 MV |
137 | SCM subr = scm_c_make_subr_with_generic (name, type, fcn, gf); |
138 | scm_define (SCM_SUBR_ENTRY(subr).name, subr); | |
9de33deb MD |
139 | return subr; |
140 | } | |
141 | ||
142 | void | |
143 | scm_mark_subr_table () | |
144 | { | |
c014a02e | 145 | long i; |
9de33deb MD |
146 | for (i = 0; i < scm_subr_table_size; ++i) |
147 | { | |
fd336365 | 148 | SCM_SETGCMARK (scm_subr_table[i].name); |
9de33deb MD |
149 | if (scm_subr_table[i].generic && *scm_subr_table[i].generic) |
150 | scm_gc_mark (*scm_subr_table[i].generic); | |
23a62df4 DH |
151 | if (SCM_NIMP (scm_subr_table[i].properties)) |
152 | scm_gc_mark (scm_subr_table[i].properties); | |
9de33deb MD |
153 | } |
154 | } | |
1cc91f1b | 155 | |
9de33deb MD |
156 | |
157 | #ifdef CCLO | |
0f2d19dd | 158 | SCM |
1be6b49c | 159 | scm_makcclo (SCM proc, size_t len) |
0f2d19dd | 160 | { |
92c2555f | 161 | scm_t_bits *base = scm_must_malloc (len * sizeof (scm_t_bits), "compiled-closure"); |
74cc8503 | 162 | unsigned long i; |
0f2d19dd | 163 | SCM s; |
74cc8503 DH |
164 | |
165 | for (i = 0; i < len; ++i) | |
166 | base [i] = SCM_UNPACK (SCM_UNSPECIFIED); | |
167 | ||
0f2d19dd JB |
168 | SCM_NEWCELL (s); |
169 | SCM_DEFER_INTS; | |
74cc8503 DH |
170 | SCM_SET_CCLO_BASE (s, base); |
171 | SCM_SET_CCLO_LENGTH (s, len); | |
172 | SCM_SET_CCLO_SUBR (s, proc); | |
0f2d19dd JB |
173 | SCM_ALLOW_INTS; |
174 | return s; | |
175 | } | |
d88094f9 MD |
176 | |
177 | /* Undocumented debugging procedure */ | |
178 | #ifdef GUILE_DEBUG | |
a1ec6916 | 179 | SCM_DEFINE (scm_make_cclo, "make-cclo", 2, 0, 0, |
1bbd0b84 | 180 | (SCM proc, SCM len), |
8cf97abf MG |
181 | "Create a compiled closure for @var{proc}, which reserves\n" |
182 | "@var{len} objects for its usage.") | |
1bbd0b84 | 183 | #define FUNC_NAME s_scm_make_cclo |
d88094f9 MD |
184 | { |
185 | return scm_makcclo (proc, SCM_INUM (len)); | |
186 | } | |
1bbd0b84 | 187 | #undef FUNC_NAME |
d88094f9 | 188 | #endif |
0f2d19dd JB |
189 | #endif |
190 | ||
191 | ||
192 | ||
3b3b36dd | 193 | SCM_DEFINE (scm_procedure_p, "procedure?", 1, 0, 0, |
8cf97abf MG |
194 | (SCM obj), |
195 | "Return @code{#t} if @var{obj} is a procedure.") | |
1bbd0b84 | 196 | #define FUNC_NAME s_scm_procedure_p |
0f2d19dd JB |
197 | { |
198 | if (SCM_NIMP (obj)) | |
199 | switch (SCM_TYP7 (obj)) | |
200 | { | |
904a077d | 201 | case scm_tcs_struct: |
bdc88419 MD |
202 | if (!SCM_I_OPERATORP (obj)) |
203 | break; | |
0f2d19dd | 204 | case scm_tcs_closures: |
0f2d19dd JB |
205 | case scm_tcs_subrs: |
206 | #ifdef CCLO | |
207 | case scm_tc7_cclo: | |
208 | #endif | |
b4cd6492 | 209 | case scm_tc7_pws: |
0f2d19dd | 210 | return SCM_BOOL_T; |
0717dfd8 KN |
211 | case scm_tc7_smob: |
212 | return SCM_BOOL (SCM_SMOB_DESCRIPTOR (obj).apply); | |
0f2d19dd JB |
213 | default: |
214 | return SCM_BOOL_F; | |
215 | } | |
216 | return SCM_BOOL_F; | |
217 | } | |
1bbd0b84 | 218 | #undef FUNC_NAME |
0f2d19dd | 219 | |
3b3b36dd | 220 | SCM_DEFINE (scm_closure_p, "closure?", 1, 0, 0, |
1bbd0b84 | 221 | (SCM obj), |
8cf97abf | 222 | "Return @code{#t} if @var{obj} is a closure.") |
1bbd0b84 | 223 | #define FUNC_NAME s_scm_closure_p |
ecdb5eb2 | 224 | { |
726d810a | 225 | return SCM_BOOL (SCM_CLOSUREP (obj)); |
ecdb5eb2 | 226 | } |
1bbd0b84 | 227 | #undef FUNC_NAME |
ecdb5eb2 | 228 | |
3b3b36dd | 229 | SCM_DEFINE (scm_thunk_p, "thunk?", 1, 0, 0, |
8cf97abf MG |
230 | (SCM obj), |
231 | "Return @code{#t} if @var{obj} is a thunk.") | |
1bbd0b84 | 232 | #define FUNC_NAME s_scm_thunk_p |
44bd53b9 MD |
233 | { |
234 | if (SCM_NIMP (obj)) | |
b4cd6492 MD |
235 | { |
236 | again: | |
237 | switch (SCM_TYP7 (obj)) | |
238 | { | |
239 | case scm_tcs_closures: | |
726d810a | 240 | return SCM_BOOL (!SCM_CONSP (SCM_CLOSURE_FORMALS (obj))); |
b4cd6492 MD |
241 | case scm_tc7_subr_0: |
242 | case scm_tc7_subr_1o: | |
243 | case scm_tc7_lsubr: | |
244 | case scm_tc7_rpsubr: | |
245 | case scm_tc7_asubr: | |
44bd53b9 | 246 | #ifdef CCLO |
b4cd6492 | 247 | case scm_tc7_cclo: |
44bd53b9 | 248 | #endif |
b4cd6492 MD |
249 | return SCM_BOOL_T; |
250 | case scm_tc7_pws: | |
251 | obj = SCM_PROCEDURE (obj); | |
252 | goto again; | |
253 | default: | |
254 | ; | |
255 | } | |
256 | } | |
44bd53b9 MD |
257 | return SCM_BOOL_F; |
258 | } | |
1bbd0b84 | 259 | #undef FUNC_NAME |
44bd53b9 | 260 | |
9de33deb MD |
261 | /* Only used internally. */ |
262 | int | |
263 | scm_subr_p (SCM obj) | |
264 | { | |
265 | if (SCM_NIMP (obj)) | |
266 | switch (SCM_TYP7 (obj)) | |
267 | { | |
268 | case scm_tcs_subrs: | |
269 | return 1; | |
270 | default: | |
271 | ; | |
272 | } | |
273 | return 0; | |
274 | } | |
275 | ||
3b3b36dd | 276 | SCM_DEFINE (scm_procedure_documentation, "procedure-documentation", 1, 0, 0, |
1bbd0b84 | 277 | (SCM proc), |
b380b885 MD |
278 | "Return the documentation string associated with @code{proc}. By\n" |
279 | "convention, if a procedure contains more than one expression and the\n" | |
280 | "first expression is a string constant, that string is assumed to contain\n" | |
281 | "documentation for that procedure.") | |
1bbd0b84 | 282 | #define FUNC_NAME s_scm_procedure_documentation |
c2c82fba MD |
283 | { |
284 | SCM code; | |
5f144b10 | 285 | SCM_ASSERT (SCM_EQ_P (scm_procedure_p (proc), SCM_BOOL_T) && SCM_NIMP (proc), |
9a09deb1 | 286 | proc, SCM_ARG1, FUNC_NAME); |
c2c82fba MD |
287 | switch (SCM_TYP7 (proc)) |
288 | { | |
289 | case scm_tcs_closures: | |
290 | code = SCM_CDR (SCM_CODE (proc)); | |
291 | if (SCM_IMP (SCM_CDR (code))) | |
292 | return SCM_BOOL_F; | |
293 | code = SCM_CAR (code); | |
294 | if (SCM_IMP (code)) | |
295 | return SCM_BOOL_F; | |
296 | if (SCM_STRINGP (code)) | |
297 | return code; | |
298 | default: | |
299 | return SCM_BOOL_F; | |
300 | /* | |
301 | case scm_tcs_subrs: | |
302 | #ifdef CCLO | |
303 | case scm_tc7_cclo: | |
304 | #endif | |
305 | */ | |
306 | } | |
307 | } | |
1bbd0b84 | 308 | #undef FUNC_NAME |
c2c82fba | 309 | |
0f2d19dd | 310 | |
b4cd6492 MD |
311 | /* Procedure-with-setter |
312 | */ | |
313 | ||
a1ec6916 | 314 | SCM_DEFINE (scm_procedure_with_setter_p, "procedure-with-setter?", 1, 0, 0, |
1bbd0b84 | 315 | (SCM obj), |
8cf97abf MG |
316 | "Return @code{#t} if @var{obj} is a procedure with an\n" |
317 | "associated setter procedure.") | |
1bbd0b84 | 318 | #define FUNC_NAME s_scm_procedure_with_setter_p |
b4cd6492 | 319 | { |
0c95b57d | 320 | return SCM_BOOL(SCM_PROCEDURE_WITH_SETTER_P (obj)); |
b4cd6492 | 321 | } |
1bbd0b84 | 322 | #undef FUNC_NAME |
b4cd6492 | 323 | |
a1ec6916 | 324 | SCM_DEFINE (scm_make_procedure_with_setter, "make-procedure-with-setter", 2, 0, 0, |
1bbd0b84 | 325 | (SCM procedure, SCM setter), |
8cf97abf MG |
326 | "Create a new procedure which behaves like @var{procedure}, but\n" |
327 | "with the associated setter @var{setter}.") | |
1bbd0b84 | 328 | #define FUNC_NAME s_scm_make_procedure_with_setter |
b4cd6492 MD |
329 | { |
330 | SCM z; | |
e1f8eb2b MD |
331 | SCM_VALIDATE_PROC (1, procedure); |
332 | SCM_VALIDATE_PROC (2, setter); | |
333 | SCM_NEWCELL2 (z); | |
b4cd6492 | 334 | SCM_ENTER_A_SECTION; |
0cbaaf0b DH |
335 | SCM_SET_CELL_OBJECT_1 (z, procedure); |
336 | SCM_SET_CELL_OBJECT_2 (z, setter); | |
54778cd3 | 337 | SCM_SET_CELL_TYPE (z, scm_tc7_pws); |
b4cd6492 MD |
338 | SCM_EXIT_A_SECTION; |
339 | return z; | |
340 | } | |
1bbd0b84 | 341 | #undef FUNC_NAME |
b4cd6492 | 342 | |
a1ec6916 | 343 | SCM_DEFINE (scm_procedure, "procedure", 1, 0, 0, |
1bbd0b84 | 344 | (SCM proc), |
8cf97abf MG |
345 | "Return the procedure of @var{proc}, which must be either a\n" |
346 | "procedure with setter, or an operator struct.") | |
1bbd0b84 | 347 | #define FUNC_NAME s_scm_procedure |
b4cd6492 | 348 | { |
e1f8eb2b | 349 | SCM_VALIDATE_NIM (1, proc); |
b4cd6492 MD |
350 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
351 | return SCM_PROCEDURE (proc); | |
352 | else if (SCM_STRUCTP (proc)) | |
353 | { | |
1bbd0b84 | 354 | SCM_ASSERT (SCM_I_OPERATORP (proc), proc, SCM_ARG1, FUNC_NAME); |
b4cd6492 MD |
355 | return proc; |
356 | } | |
1bbd0b84 | 357 | SCM_WRONG_TYPE_ARG (1, proc); |
4260a7fc | 358 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 359 | } |
1bbd0b84 | 360 | #undef FUNC_NAME |
b4cd6492 | 361 | |
f5267231 | 362 | SCM_GPROC (s_setter, "setter", 1, 0, 0, scm_setter, g_setter); |
b4cd6492 MD |
363 | |
364 | SCM | |
365 | scm_setter (SCM proc) | |
366 | { | |
f5267231 | 367 | SCM_GASSERT1 (SCM_NIMP (proc), g_setter, proc, SCM_ARG1, s_setter); |
b4cd6492 MD |
368 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
369 | return SCM_SETTER (proc); | |
370 | else if (SCM_STRUCTP (proc)) | |
371 | { | |
c72a774a | 372 | SCM setter; |
f5267231 MD |
373 | SCM_GASSERT1 (SCM_I_OPERATORP (proc), |
374 | g_setter, proc, SCM_ARG1, s_setter); | |
c72a774a MD |
375 | setter = (SCM_I_ENTITYP (proc) |
376 | ? SCM_ENTITY_SETTER (proc) | |
377 | : SCM_OPERATOR_SETTER (proc)); | |
378 | if (SCM_NIMP (setter)) | |
379 | return setter; | |
380 | /* fall through */ | |
b4cd6492 | 381 | } |
f5267231 | 382 | SCM_WTA_DISPATCH_1 (g_setter, proc, SCM_ARG1, s_setter); |
b038d983 | 383 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 384 | } |
1cc91f1b | 385 | |
9de33deb | 386 | |
9de33deb MD |
387 | void |
388 | scm_init_subr_table () | |
389 | { | |
390 | scm_subr_table | |
92c2555f MV |
391 | = ((scm_t_subr_entry *) |
392 | scm_must_malloc (sizeof (scm_t_subr_entry) * scm_subr_table_room, | |
9de33deb MD |
393 | "scm_subr_table")); |
394 | } | |
1cc91f1b | 395 | |
0f2d19dd JB |
396 | void |
397 | scm_init_procs () | |
0f2d19dd | 398 | { |
8dc9439f | 399 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 400 | #include "libguile/procs.x" |
8dc9439f | 401 | #endif |
0f2d19dd | 402 | } |
89e00824 | 403 | |
c88a8162 MV |
404 | #if SCM_DEBUG_DEPRECATED == 0 |
405 | ||
406 | SCM | |
407 | scm_make_subr_opt (const char *name, int type, SCM (*fcn) (), int set) | |
408 | { | |
409 | scm_c_issue_deprecation_warning | |
410 | ("`scm_make_subr_opt' is deprecated. Use `scm_c_make_subr' or " | |
411 | "`scm_c_define_subr' instead."); | |
412 | ||
413 | if (set) | |
414 | return scm_c_define_subr (name, type, fcn); | |
415 | else | |
416 | return scm_c_make_subr (name, type, fcn); | |
417 | } | |
418 | ||
419 | SCM | |
420 | scm_make_subr (const char *name, int type, SCM (*fcn) ()) | |
421 | { | |
422 | scm_c_issue_deprecation_warning | |
423 | ("`scm_make_subr' is deprecated. Use `scm_c_define_subr' instead."); | |
424 | ||
425 | return scm_c_define_subr (name, type, fcn); | |
426 | } | |
427 | ||
428 | SCM | |
429 | scm_make_subr_with_generic (const char *name, int type, SCM (*fcn) (), SCM *gf) | |
430 | { | |
431 | scm_c_issue_deprecation_warning | |
432 | ("`scm_make_subr_with_generic' is deprecated. Use " | |
433 | "`scm_c_define_subr_with_generic' instead."); | |
434 | ||
aac7e260 | 435 | return scm_c_define_subr_with_generic (name, type, fcn, gf); |
c88a8162 MV |
436 | } |
437 | ||
438 | #endif /* !SCM_DEBUG_DEPRECATION */ | |
439 | ||
89e00824 ML |
440 | /* |
441 | Local Variables: | |
442 | c-file-style: "gnu" | |
443 | End: | |
444 | */ |