Commit | Line | Data |
---|---|---|
e1f8eb2b | 1 | /* Copyright (C) 1995, 1996, 1997, 1999, 2000 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 | ||
47 | #include <stdio.h> | |
a0599745 | 48 | #include "libguile/_scm.h" |
0f2d19dd | 49 | |
a0599745 MD |
50 | #include "libguile/objects.h" |
51 | #include "libguile/strings.h" | |
52 | #include "libguile/vectors.h" | |
0717dfd8 | 53 | #include "libguile/smob.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 MD |
66 | |
67 | int scm_subr_table_size = 0; | |
68 | int scm_subr_table_room = 750; | |
1cc91f1b | 69 | |
0f2d19dd | 70 | SCM |
1bbd0b84 | 71 | scm_make_subr_opt (const char *name, int type, SCM (*fcn) (), int set) |
0f2d19dd | 72 | { |
c9c01b11 | 73 | SCM symbol; |
0f2d19dd | 74 | SCM symcell; |
0f2d19dd | 75 | register SCM z; |
9de33deb MD |
76 | int entry; |
77 | ||
78 | if (scm_subr_table_size == scm_subr_table_room) | |
79 | { | |
98f9c984 JB |
80 | scm_sizet new_size = scm_subr_table_room * 3 / 2; |
81 | void *new_table | |
82 | = scm_must_realloc ((char *) scm_subr_table, | |
83 | sizeof (scm_subr_entry) * scm_subr_table_room, | |
84 | sizeof (scm_subr_entry) * new_size, | |
221c6497 | 85 | "scm_subr_table"); |
9de33deb MD |
86 | scm_subr_table = new_table; |
87 | scm_subr_table_room = new_size; | |
88 | } | |
89 | ||
0f2d19dd | 90 | SCM_NEWCELL (z); |
c9c01b11 DH |
91 | if (set) |
92 | { | |
93 | symcell = scm_sysintern (name, SCM_UNDEFINED); | |
94 | symbol = SCM_CAR (symcell); | |
95 | } | |
96 | else | |
97 | { | |
98 | symbol = scm_str2symbol (name); | |
99 | } | |
9de33deb MD |
100 | |
101 | entry = scm_subr_table_size; | |
102 | scm_subr_table[entry].handle = z; | |
c9c01b11 | 103 | scm_subr_table[entry].name = symbol; |
9de33deb | 104 | scm_subr_table[entry].generic = 0; |
9de33deb | 105 | |
2d9cdf4e | 106 | SCM_SET_SUBRF (z, fcn); |
54778cd3 | 107 | SCM_SET_CELL_TYPE (z, (entry << 8) + type); |
9de33deb MD |
108 | scm_subr_table_size++; |
109 | ||
0f2d19dd | 110 | if (set) |
a6c64c3c | 111 | SCM_SETCDR (symcell, z); |
9de33deb | 112 | |
0f2d19dd JB |
113 | return z; |
114 | } | |
115 | ||
9de33deb MD |
116 | /* This function isn't currently used since subrs are never freed. */ |
117 | /* *fixme* Need mutex here. */ | |
118 | void | |
119 | scm_free_subr_entry (SCM subr) | |
120 | { | |
121 | int entry = SCM_SUBRNUM (subr); | |
122 | /* Move last entry in table to the free position */ | |
123 | scm_subr_table[entry] = scm_subr_table[scm_subr_table_size - 1]; | |
124 | SCM_SET_SUBRNUM (scm_subr_table[entry].handle, entry); | |
125 | scm_subr_table_size--; | |
126 | } | |
1cc91f1b | 127 | |
0f2d19dd | 128 | SCM |
1bbd0b84 | 129 | scm_make_subr (const char *name, int type, SCM (*fcn) ()) |
0f2d19dd JB |
130 | { |
131 | return scm_make_subr_opt (name, type, fcn, 1); | |
132 | } | |
133 | ||
9de33deb MD |
134 | SCM |
135 | scm_make_subr_with_generic (const char *name, int type, SCM (*fcn) (), SCM *gf) | |
136 | { | |
137 | SCM subr = scm_make_subr_opt (name, type, fcn, 1); | |
138 | scm_subr_table[scm_subr_table_size - 1].generic = gf; | |
139 | return subr; | |
140 | } | |
141 | ||
142 | void | |
143 | scm_mark_subr_table () | |
144 | { | |
145 | int i; | |
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); | |
9de33deb MD |
151 | } |
152 | } | |
1cc91f1b | 153 | |
9de33deb MD |
154 | |
155 | #ifdef CCLO | |
0f2d19dd | 156 | SCM |
1bbd0b84 | 157 | scm_makcclo (SCM proc, long len) |
0f2d19dd | 158 | { |
74cc8503 DH |
159 | scm_bits_t *base = scm_must_malloc (len * sizeof (scm_bits_t), "compiled-closure"); |
160 | unsigned long i; | |
0f2d19dd | 161 | SCM s; |
74cc8503 DH |
162 | |
163 | for (i = 0; i < len; ++i) | |
164 | base [i] = SCM_UNPACK (SCM_UNSPECIFIED); | |
165 | ||
0f2d19dd JB |
166 | SCM_NEWCELL (s); |
167 | SCM_DEFER_INTS; | |
74cc8503 DH |
168 | SCM_SET_CCLO_BASE (s, base); |
169 | SCM_SET_CCLO_LENGTH (s, len); | |
170 | SCM_SET_CCLO_SUBR (s, proc); | |
0f2d19dd JB |
171 | SCM_ALLOW_INTS; |
172 | return s; | |
173 | } | |
d88094f9 MD |
174 | |
175 | /* Undocumented debugging procedure */ | |
176 | #ifdef GUILE_DEBUG | |
a1ec6916 | 177 | SCM_DEFINE (scm_make_cclo, "make-cclo", 2, 0, 0, |
1bbd0b84 GB |
178 | (SCM proc, SCM len), |
179 | "") | |
180 | #define FUNC_NAME s_scm_make_cclo | |
d88094f9 MD |
181 | { |
182 | return scm_makcclo (proc, SCM_INUM (len)); | |
183 | } | |
1bbd0b84 | 184 | #undef FUNC_NAME |
d88094f9 | 185 | #endif |
0f2d19dd JB |
186 | #endif |
187 | ||
188 | ||
189 | ||
3b3b36dd | 190 | SCM_DEFINE (scm_procedure_p, "procedure?", 1, 0, 0, |
1bbd0b84 GB |
191 | (SCM obj), |
192 | "") | |
193 | #define FUNC_NAME s_scm_procedure_p | |
0f2d19dd JB |
194 | { |
195 | if (SCM_NIMP (obj)) | |
196 | switch (SCM_TYP7 (obj)) | |
197 | { | |
bdc88419 MD |
198 | case scm_tcs_cons_gloc: |
199 | if (!SCM_I_OPERATORP (obj)) | |
200 | break; | |
0f2d19dd | 201 | case scm_tcs_closures: |
0f2d19dd JB |
202 | case scm_tcs_subrs: |
203 | #ifdef CCLO | |
204 | case scm_tc7_cclo: | |
205 | #endif | |
b4cd6492 | 206 | case scm_tc7_pws: |
0f2d19dd | 207 | return SCM_BOOL_T; |
0717dfd8 KN |
208 | case scm_tc7_smob: |
209 | return SCM_BOOL (SCM_SMOB_DESCRIPTOR (obj).apply); | |
0f2d19dd JB |
210 | default: |
211 | return SCM_BOOL_F; | |
212 | } | |
213 | return SCM_BOOL_F; | |
214 | } | |
1bbd0b84 | 215 | #undef FUNC_NAME |
0f2d19dd | 216 | |
3b3b36dd | 217 | SCM_DEFINE (scm_closure_p, "closure?", 1, 0, 0, |
1bbd0b84 GB |
218 | (SCM obj), |
219 | "") | |
220 | #define FUNC_NAME s_scm_closure_p | |
ecdb5eb2 | 221 | { |
0c95b57d | 222 | return SCM_BOOL(SCM_CLOSUREP (obj)); |
ecdb5eb2 | 223 | } |
1bbd0b84 | 224 | #undef FUNC_NAME |
ecdb5eb2 | 225 | |
3b3b36dd | 226 | SCM_DEFINE (scm_thunk_p, "thunk?", 1, 0, 0, |
1bbd0b84 GB |
227 | (SCM obj), |
228 | "") | |
229 | #define FUNC_NAME s_scm_thunk_p | |
44bd53b9 MD |
230 | { |
231 | if (SCM_NIMP (obj)) | |
b4cd6492 MD |
232 | { |
233 | again: | |
234 | switch (SCM_TYP7 (obj)) | |
235 | { | |
236 | case scm_tcs_closures: | |
237 | if (SCM_NULLP (SCM_CAR (SCM_CODE (obj)))) | |
238 | return SCM_BOOL_T; | |
239 | case scm_tc7_subr_0: | |
240 | case scm_tc7_subr_1o: | |
241 | case scm_tc7_lsubr: | |
242 | case scm_tc7_rpsubr: | |
243 | case scm_tc7_asubr: | |
44bd53b9 | 244 | #ifdef CCLO |
b4cd6492 | 245 | case scm_tc7_cclo: |
44bd53b9 | 246 | #endif |
b4cd6492 MD |
247 | return SCM_BOOL_T; |
248 | case scm_tc7_pws: | |
249 | obj = SCM_PROCEDURE (obj); | |
250 | goto again; | |
251 | default: | |
252 | ; | |
253 | } | |
254 | } | |
44bd53b9 MD |
255 | return SCM_BOOL_F; |
256 | } | |
1bbd0b84 | 257 | #undef FUNC_NAME |
44bd53b9 | 258 | |
9de33deb MD |
259 | /* Only used internally. */ |
260 | int | |
261 | scm_subr_p (SCM obj) | |
262 | { | |
263 | if (SCM_NIMP (obj)) | |
264 | switch (SCM_TYP7 (obj)) | |
265 | { | |
266 | case scm_tcs_subrs: | |
267 | return 1; | |
268 | default: | |
269 | ; | |
270 | } | |
271 | return 0; | |
272 | } | |
273 | ||
3b3b36dd | 274 | SCM_DEFINE (scm_procedure_documentation, "procedure-documentation", 1, 0, 0, |
1bbd0b84 | 275 | (SCM proc), |
b380b885 MD |
276 | "Return the documentation string associated with @code{proc}. By\n" |
277 | "convention, if a procedure contains more than one expression and the\n" | |
278 | "first expression is a string constant, that string is assumed to contain\n" | |
279 | "documentation for that procedure.") | |
1bbd0b84 | 280 | #define FUNC_NAME s_scm_procedure_documentation |
c2c82fba MD |
281 | { |
282 | SCM code; | |
5f144b10 | 283 | SCM_ASSERT (SCM_EQ_P (scm_procedure_p (proc), SCM_BOOL_T) && SCM_NIMP (proc), |
9a09deb1 | 284 | proc, SCM_ARG1, FUNC_NAME); |
c2c82fba MD |
285 | switch (SCM_TYP7 (proc)) |
286 | { | |
287 | case scm_tcs_closures: | |
288 | code = SCM_CDR (SCM_CODE (proc)); | |
289 | if (SCM_IMP (SCM_CDR (code))) | |
290 | return SCM_BOOL_F; | |
291 | code = SCM_CAR (code); | |
292 | if (SCM_IMP (code)) | |
293 | return SCM_BOOL_F; | |
294 | if (SCM_STRINGP (code)) | |
295 | return code; | |
296 | default: | |
297 | return SCM_BOOL_F; | |
298 | /* | |
299 | case scm_tcs_subrs: | |
300 | #ifdef CCLO | |
301 | case scm_tc7_cclo: | |
302 | #endif | |
303 | */ | |
304 | } | |
305 | } | |
1bbd0b84 | 306 | #undef FUNC_NAME |
c2c82fba | 307 | |
0f2d19dd | 308 | |
b4cd6492 MD |
309 | /* Procedure-with-setter |
310 | */ | |
311 | ||
a1ec6916 | 312 | SCM_DEFINE (scm_procedure_with_setter_p, "procedure-with-setter?", 1, 0, 0, |
1bbd0b84 | 313 | (SCM obj), |
b380b885 | 314 | "") |
1bbd0b84 | 315 | #define FUNC_NAME s_scm_procedure_with_setter_p |
b4cd6492 | 316 | { |
0c95b57d | 317 | return SCM_BOOL(SCM_PROCEDURE_WITH_SETTER_P (obj)); |
b4cd6492 | 318 | } |
1bbd0b84 | 319 | #undef FUNC_NAME |
b4cd6492 | 320 | |
a1ec6916 | 321 | SCM_DEFINE (scm_make_procedure_with_setter, "make-procedure-with-setter", 2, 0, 0, |
1bbd0b84 | 322 | (SCM procedure, SCM setter), |
b380b885 | 323 | "") |
1bbd0b84 | 324 | #define FUNC_NAME s_scm_make_procedure_with_setter |
b4cd6492 MD |
325 | { |
326 | SCM z; | |
e1f8eb2b MD |
327 | SCM_VALIDATE_PROC (1, procedure); |
328 | SCM_VALIDATE_PROC (2, setter); | |
329 | SCM_NEWCELL2 (z); | |
b4cd6492 | 330 | SCM_ENTER_A_SECTION; |
0cbaaf0b DH |
331 | SCM_SET_CELL_OBJECT_1 (z, procedure); |
332 | SCM_SET_CELL_OBJECT_2 (z, setter); | |
54778cd3 | 333 | SCM_SET_CELL_TYPE (z, scm_tc7_pws); |
b4cd6492 MD |
334 | SCM_EXIT_A_SECTION; |
335 | return z; | |
336 | } | |
1bbd0b84 | 337 | #undef FUNC_NAME |
b4cd6492 | 338 | |
a1ec6916 | 339 | SCM_DEFINE (scm_procedure, "procedure", 1, 0, 0, |
1bbd0b84 | 340 | (SCM proc), |
b380b885 | 341 | "") |
1bbd0b84 | 342 | #define FUNC_NAME s_scm_procedure |
b4cd6492 | 343 | { |
e1f8eb2b | 344 | SCM_VALIDATE_NIM (1, proc); |
b4cd6492 MD |
345 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
346 | return SCM_PROCEDURE (proc); | |
347 | else if (SCM_STRUCTP (proc)) | |
348 | { | |
1bbd0b84 | 349 | SCM_ASSERT (SCM_I_OPERATORP (proc), proc, SCM_ARG1, FUNC_NAME); |
b4cd6492 MD |
350 | return proc; |
351 | } | |
1bbd0b84 | 352 | SCM_WRONG_TYPE_ARG (1, proc); |
4260a7fc | 353 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 354 | } |
1bbd0b84 | 355 | #undef FUNC_NAME |
b4cd6492 | 356 | |
f5267231 | 357 | SCM_GPROC (s_setter, "setter", 1, 0, 0, scm_setter, g_setter); |
b4cd6492 MD |
358 | |
359 | SCM | |
360 | scm_setter (SCM proc) | |
361 | { | |
f5267231 | 362 | SCM_GASSERT1 (SCM_NIMP (proc), g_setter, proc, SCM_ARG1, s_setter); |
b4cd6492 MD |
363 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
364 | return SCM_SETTER (proc); | |
365 | else if (SCM_STRUCTP (proc)) | |
366 | { | |
c72a774a | 367 | SCM setter; |
f5267231 MD |
368 | SCM_GASSERT1 (SCM_I_OPERATORP (proc), |
369 | g_setter, proc, SCM_ARG1, s_setter); | |
c72a774a MD |
370 | setter = (SCM_I_ENTITYP (proc) |
371 | ? SCM_ENTITY_SETTER (proc) | |
372 | : SCM_OPERATOR_SETTER (proc)); | |
373 | if (SCM_NIMP (setter)) | |
374 | return setter; | |
375 | /* fall through */ | |
b4cd6492 | 376 | } |
f5267231 | 377 | SCM_WTA_DISPATCH_1 (g_setter, proc, SCM_ARG1, s_setter); |
b038d983 | 378 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 379 | } |
1cc91f1b | 380 | |
9de33deb | 381 | |
9de33deb MD |
382 | void |
383 | scm_init_subr_table () | |
384 | { | |
385 | scm_subr_table | |
386 | = ((scm_subr_entry *) | |
387 | scm_must_malloc (sizeof (scm_subr_entry) * scm_subr_table_room, | |
388 | "scm_subr_table")); | |
389 | } | |
1cc91f1b | 390 | |
0f2d19dd JB |
391 | void |
392 | scm_init_procs () | |
0f2d19dd | 393 | { |
8dc9439f | 394 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 395 | #include "libguile/procs.x" |
8dc9439f | 396 | #endif |
0f2d19dd | 397 | } |
89e00824 ML |
398 | |
399 | /* | |
400 | Local Variables: | |
401 | c-file-style: "gnu" | |
402 | End: | |
403 | */ |