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 JB |
72 | { |
73 | SCM symcell; | |
0f2d19dd | 74 | register SCM z; |
9de33deb MD |
75 | int entry; |
76 | ||
77 | if (scm_subr_table_size == scm_subr_table_room) | |
78 | { | |
98f9c984 JB |
79 | scm_sizet new_size = scm_subr_table_room * 3 / 2; |
80 | void *new_table | |
81 | = scm_must_realloc ((char *) scm_subr_table, | |
82 | sizeof (scm_subr_entry) * scm_subr_table_room, | |
83 | sizeof (scm_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); |
9de33deb MD |
90 | symcell = set ? scm_sysintern0 (name) : scm_intern0 (name); |
91 | ||
92 | entry = scm_subr_table_size; | |
93 | scm_subr_table[entry].handle = z; | |
94 | scm_subr_table[entry].name = SCM_CAR (symcell); | |
95 | scm_subr_table[entry].generic = 0; | |
96 | scm_subr_table[entry].properties = SCM_EOL; | |
97 | scm_subr_table[entry].documentation = SCM_BOOL_F; | |
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 | 103 | if (set) |
a6c64c3c | 104 | SCM_SETCDR (symcell, z); |
9de33deb | 105 | |
0f2d19dd JB |
106 | return z; |
107 | } | |
108 | ||
9de33deb MD |
109 | /* This function isn't currently used since subrs are never freed. */ |
110 | /* *fixme* Need mutex here. */ | |
111 | void | |
112 | scm_free_subr_entry (SCM subr) | |
113 | { | |
114 | int entry = SCM_SUBRNUM (subr); | |
115 | /* Move last entry in table to the free position */ | |
116 | scm_subr_table[entry] = scm_subr_table[scm_subr_table_size - 1]; | |
117 | SCM_SET_SUBRNUM (scm_subr_table[entry].handle, entry); | |
118 | scm_subr_table_size--; | |
119 | } | |
1cc91f1b | 120 | |
0f2d19dd | 121 | SCM |
1bbd0b84 | 122 | scm_make_subr (const char *name, int type, SCM (*fcn) ()) |
0f2d19dd JB |
123 | { |
124 | return scm_make_subr_opt (name, type, fcn, 1); | |
125 | } | |
126 | ||
9de33deb MD |
127 | SCM |
128 | scm_make_subr_with_generic (const char *name, int type, SCM (*fcn) (), SCM *gf) | |
129 | { | |
130 | SCM subr = scm_make_subr_opt (name, type, fcn, 1); | |
131 | scm_subr_table[scm_subr_table_size - 1].generic = gf; | |
132 | return subr; | |
133 | } | |
134 | ||
135 | void | |
136 | scm_mark_subr_table () | |
137 | { | |
138 | int i; | |
139 | for (i = 0; i < scm_subr_table_size; ++i) | |
140 | { | |
141 | SCM_SETGC8MARK (scm_subr_table[i].name); | |
142 | if (scm_subr_table[i].generic && *scm_subr_table[i].generic) | |
143 | scm_gc_mark (*scm_subr_table[i].generic); | |
144 | if (SCM_NIMP (scm_subr_table[i].properties)) | |
145 | scm_gc_mark (scm_subr_table[i].properties); | |
146 | if (SCM_NIMP (scm_subr_table[i].documentation)) | |
147 | scm_gc_mark (scm_subr_table[i].documentation); | |
148 | } | |
149 | } | |
1cc91f1b | 150 | |
9de33deb MD |
151 | |
152 | #ifdef CCLO | |
0f2d19dd | 153 | SCM |
1bbd0b84 | 154 | scm_makcclo (SCM proc, long len) |
0f2d19dd | 155 | { |
74cc8503 DH |
156 | scm_bits_t *base = scm_must_malloc (len * sizeof (scm_bits_t), "compiled-closure"); |
157 | unsigned long i; | |
0f2d19dd | 158 | SCM s; |
74cc8503 DH |
159 | |
160 | for (i = 0; i < len; ++i) | |
161 | base [i] = SCM_UNPACK (SCM_UNSPECIFIED); | |
162 | ||
0f2d19dd JB |
163 | SCM_NEWCELL (s); |
164 | SCM_DEFER_INTS; | |
74cc8503 DH |
165 | SCM_SET_CCLO_BASE (s, base); |
166 | SCM_SET_CCLO_LENGTH (s, len); | |
167 | SCM_SET_CCLO_SUBR (s, proc); | |
0f2d19dd JB |
168 | SCM_ALLOW_INTS; |
169 | return s; | |
170 | } | |
d88094f9 MD |
171 | |
172 | /* Undocumented debugging procedure */ | |
173 | #ifdef GUILE_DEBUG | |
a1ec6916 | 174 | SCM_DEFINE (scm_make_cclo, "make-cclo", 2, 0, 0, |
1bbd0b84 GB |
175 | (SCM proc, SCM len), |
176 | "") | |
177 | #define FUNC_NAME s_scm_make_cclo | |
d88094f9 MD |
178 | { |
179 | return scm_makcclo (proc, SCM_INUM (len)); | |
180 | } | |
1bbd0b84 | 181 | #undef FUNC_NAME |
d88094f9 | 182 | #endif |
0f2d19dd JB |
183 | #endif |
184 | ||
185 | ||
186 | ||
3b3b36dd | 187 | SCM_DEFINE (scm_procedure_p, "procedure?", 1, 0, 0, |
1bbd0b84 GB |
188 | (SCM obj), |
189 | "") | |
190 | #define FUNC_NAME s_scm_procedure_p | |
0f2d19dd JB |
191 | { |
192 | if (SCM_NIMP (obj)) | |
193 | switch (SCM_TYP7 (obj)) | |
194 | { | |
bdc88419 MD |
195 | case scm_tcs_cons_gloc: |
196 | if (!SCM_I_OPERATORP (obj)) | |
197 | break; | |
0f2d19dd JB |
198 | case scm_tcs_closures: |
199 | case scm_tc7_contin: | |
200 | case scm_tcs_subrs: | |
201 | #ifdef CCLO | |
202 | case scm_tc7_cclo: | |
203 | #endif | |
b4cd6492 | 204 | case scm_tc7_pws: |
0f2d19dd | 205 | return SCM_BOOL_T; |
0717dfd8 KN |
206 | case scm_tc7_smob: |
207 | return SCM_BOOL (SCM_SMOB_DESCRIPTOR (obj).apply); | |
0f2d19dd JB |
208 | default: |
209 | return SCM_BOOL_F; | |
210 | } | |
211 | return SCM_BOOL_F; | |
212 | } | |
1bbd0b84 | 213 | #undef FUNC_NAME |
0f2d19dd | 214 | |
3b3b36dd | 215 | SCM_DEFINE (scm_closure_p, "closure?", 1, 0, 0, |
1bbd0b84 GB |
216 | (SCM obj), |
217 | "") | |
218 | #define FUNC_NAME s_scm_closure_p | |
ecdb5eb2 | 219 | { |
0c95b57d | 220 | return SCM_BOOL(SCM_CLOSUREP (obj)); |
ecdb5eb2 | 221 | } |
1bbd0b84 | 222 | #undef FUNC_NAME |
ecdb5eb2 | 223 | |
3b3b36dd | 224 | SCM_DEFINE (scm_thunk_p, "thunk?", 1, 0, 0, |
1bbd0b84 GB |
225 | (SCM obj), |
226 | "") | |
227 | #define FUNC_NAME s_scm_thunk_p | |
44bd53b9 MD |
228 | { |
229 | if (SCM_NIMP (obj)) | |
b4cd6492 MD |
230 | { |
231 | again: | |
232 | switch (SCM_TYP7 (obj)) | |
233 | { | |
234 | case scm_tcs_closures: | |
235 | if (SCM_NULLP (SCM_CAR (SCM_CODE (obj)))) | |
236 | return SCM_BOOL_T; | |
237 | case scm_tc7_subr_0: | |
238 | case scm_tc7_subr_1o: | |
239 | case scm_tc7_lsubr: | |
240 | case scm_tc7_rpsubr: | |
241 | case scm_tc7_asubr: | |
44bd53b9 | 242 | #ifdef CCLO |
b4cd6492 | 243 | case scm_tc7_cclo: |
44bd53b9 | 244 | #endif |
b4cd6492 MD |
245 | return SCM_BOOL_T; |
246 | case scm_tc7_pws: | |
247 | obj = SCM_PROCEDURE (obj); | |
248 | goto again; | |
249 | default: | |
250 | ; | |
251 | } | |
252 | } | |
44bd53b9 MD |
253 | return SCM_BOOL_F; |
254 | } | |
1bbd0b84 | 255 | #undef FUNC_NAME |
44bd53b9 | 256 | |
9de33deb MD |
257 | /* Only used internally. */ |
258 | int | |
259 | scm_subr_p (SCM obj) | |
260 | { | |
261 | if (SCM_NIMP (obj)) | |
262 | switch (SCM_TYP7 (obj)) | |
263 | { | |
264 | case scm_tcs_subrs: | |
265 | return 1; | |
266 | default: | |
267 | ; | |
268 | } | |
269 | return 0; | |
270 | } | |
271 | ||
3b3b36dd | 272 | SCM_DEFINE (scm_procedure_documentation, "procedure-documentation", 1, 0, 0, |
1bbd0b84 | 273 | (SCM proc), |
b380b885 MD |
274 | "Return the documentation string associated with @code{proc}. By\n" |
275 | "convention, if a procedure contains more than one expression and the\n" | |
276 | "first expression is a string constant, that string is assumed to contain\n" | |
277 | "documentation for that procedure.") | |
1bbd0b84 | 278 | #define FUNC_NAME s_scm_procedure_documentation |
c2c82fba MD |
279 | { |
280 | SCM code; | |
9a09deb1 DH |
281 | SCM_ASSERT (SCM_EQ_P (scm_procedure_p (proc), SCM_BOOL_T) |
282 | && SCM_NIMP (proc) && SCM_TYP7 (proc) != scm_tc7_contin, | |
283 | proc, SCM_ARG1, FUNC_NAME); | |
c2c82fba MD |
284 | switch (SCM_TYP7 (proc)) |
285 | { | |
286 | case scm_tcs_closures: | |
287 | code = SCM_CDR (SCM_CODE (proc)); | |
288 | if (SCM_IMP (SCM_CDR (code))) | |
289 | return SCM_BOOL_F; | |
290 | code = SCM_CAR (code); | |
291 | if (SCM_IMP (code)) | |
292 | return SCM_BOOL_F; | |
293 | if (SCM_STRINGP (code)) | |
294 | return code; | |
295 | default: | |
296 | return SCM_BOOL_F; | |
297 | /* | |
298 | case scm_tcs_subrs: | |
299 | #ifdef CCLO | |
300 | case scm_tc7_cclo: | |
301 | #endif | |
302 | */ | |
303 | } | |
304 | } | |
1bbd0b84 | 305 | #undef FUNC_NAME |
c2c82fba | 306 | |
0f2d19dd | 307 | |
b4cd6492 MD |
308 | /* Procedure-with-setter |
309 | */ | |
310 | ||
a1ec6916 | 311 | SCM_DEFINE (scm_procedure_with_setter_p, "procedure-with-setter?", 1, 0, 0, |
1bbd0b84 | 312 | (SCM obj), |
b380b885 | 313 | "") |
1bbd0b84 | 314 | #define FUNC_NAME s_scm_procedure_with_setter_p |
b4cd6492 | 315 | { |
0c95b57d | 316 | return SCM_BOOL(SCM_PROCEDURE_WITH_SETTER_P (obj)); |
b4cd6492 | 317 | } |
1bbd0b84 | 318 | #undef FUNC_NAME |
b4cd6492 | 319 | |
a1ec6916 | 320 | SCM_DEFINE (scm_make_procedure_with_setter, "make-procedure-with-setter", 2, 0, 0, |
1bbd0b84 | 321 | (SCM procedure, SCM setter), |
b380b885 | 322 | "") |
1bbd0b84 | 323 | #define FUNC_NAME s_scm_make_procedure_with_setter |
b4cd6492 MD |
324 | { |
325 | SCM z; | |
e1f8eb2b MD |
326 | SCM_VALIDATE_PROC (1, procedure); |
327 | SCM_VALIDATE_PROC (2, setter); | |
328 | SCM_NEWCELL2 (z); | |
b4cd6492 | 329 | SCM_ENTER_A_SECTION; |
0cbaaf0b DH |
330 | SCM_SET_CELL_OBJECT_1 (z, procedure); |
331 | SCM_SET_CELL_OBJECT_2 (z, setter); | |
54778cd3 | 332 | SCM_SET_CELL_TYPE (z, scm_tc7_pws); |
b4cd6492 MD |
333 | SCM_EXIT_A_SECTION; |
334 | return z; | |
335 | } | |
1bbd0b84 | 336 | #undef FUNC_NAME |
b4cd6492 | 337 | |
a1ec6916 | 338 | SCM_DEFINE (scm_procedure, "procedure", 1, 0, 0, |
1bbd0b84 | 339 | (SCM proc), |
b380b885 | 340 | "") |
1bbd0b84 | 341 | #define FUNC_NAME s_scm_procedure |
b4cd6492 | 342 | { |
e1f8eb2b | 343 | SCM_VALIDATE_NIM (1, proc); |
b4cd6492 MD |
344 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
345 | return SCM_PROCEDURE (proc); | |
346 | else if (SCM_STRUCTP (proc)) | |
347 | { | |
1bbd0b84 | 348 | SCM_ASSERT (SCM_I_OPERATORP (proc), proc, SCM_ARG1, FUNC_NAME); |
b4cd6492 MD |
349 | return proc; |
350 | } | |
1bbd0b84 | 351 | SCM_WRONG_TYPE_ARG (1, proc); |
4260a7fc | 352 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 353 | } |
1bbd0b84 | 354 | #undef FUNC_NAME |
b4cd6492 | 355 | |
f5267231 | 356 | SCM_GPROC (s_setter, "setter", 1, 0, 0, scm_setter, g_setter); |
b4cd6492 MD |
357 | |
358 | SCM | |
359 | scm_setter (SCM proc) | |
360 | { | |
f5267231 | 361 | SCM_GASSERT1 (SCM_NIMP (proc), g_setter, proc, SCM_ARG1, s_setter); |
b4cd6492 MD |
362 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
363 | return SCM_SETTER (proc); | |
364 | else if (SCM_STRUCTP (proc)) | |
365 | { | |
c72a774a | 366 | SCM setter; |
f5267231 MD |
367 | SCM_GASSERT1 (SCM_I_OPERATORP (proc), |
368 | g_setter, proc, SCM_ARG1, s_setter); | |
c72a774a MD |
369 | setter = (SCM_I_ENTITYP (proc) |
370 | ? SCM_ENTITY_SETTER (proc) | |
371 | : SCM_OPERATOR_SETTER (proc)); | |
372 | if (SCM_NIMP (setter)) | |
373 | return setter; | |
374 | /* fall through */ | |
b4cd6492 | 375 | } |
f5267231 | 376 | SCM_WTA_DISPATCH_1 (g_setter, proc, SCM_ARG1, s_setter); |
b038d983 | 377 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 378 | } |
1cc91f1b | 379 | |
9de33deb | 380 | |
9de33deb MD |
381 | void |
382 | scm_init_subr_table () | |
383 | { | |
384 | scm_subr_table | |
385 | = ((scm_subr_entry *) | |
386 | scm_must_malloc (sizeof (scm_subr_entry) * scm_subr_table_room, | |
387 | "scm_subr_table")); | |
388 | } | |
1cc91f1b | 389 | |
0f2d19dd JB |
390 | void |
391 | scm_init_procs () | |
0f2d19dd | 392 | { |
a0599745 | 393 | #include "libguile/procs.x" |
0f2d19dd | 394 | } |
89e00824 ML |
395 | |
396 | /* | |
397 | Local Variables: | |
398 | c-file-style: "gnu" | |
399 | End: | |
400 | */ |