Commit | Line | Data |
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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" | |
bdc88419 | 53 | |
a0599745 MD |
54 | #include "libguile/validate.h" |
55 | #include "libguile/procs.h" | |
0f2d19dd JB |
56 | \f |
57 | ||
58 | ||
59 | /* {Procedures} | |
60 | */ | |
61 | ||
9de33deb MD |
62 | scm_subr_entry *scm_subr_table; |
63 | ||
98f9c984 | 64 | /* libguile contained approx. 700 primitive procedures on 24 Aug 1999. */ |
9de33deb MD |
65 | |
66 | int scm_subr_table_size = 0; | |
67 | int scm_subr_table_room = 750; | |
1cc91f1b | 68 | |
0f2d19dd | 69 | SCM |
1bbd0b84 | 70 | scm_make_subr_opt (const char *name, int type, SCM (*fcn) (), int set) |
0f2d19dd JB |
71 | { |
72 | SCM symcell; | |
0f2d19dd | 73 | register SCM z; |
9de33deb MD |
74 | int entry; |
75 | ||
76 | if (scm_subr_table_size == scm_subr_table_room) | |
77 | { | |
98f9c984 JB |
78 | scm_sizet new_size = scm_subr_table_room * 3 / 2; |
79 | void *new_table | |
80 | = scm_must_realloc ((char *) scm_subr_table, | |
81 | sizeof (scm_subr_entry) * scm_subr_table_room, | |
82 | sizeof (scm_subr_entry) * new_size, | |
221c6497 | 83 | "scm_subr_table"); |
9de33deb MD |
84 | scm_subr_table = new_table; |
85 | scm_subr_table_room = new_size; | |
86 | } | |
87 | ||
0f2d19dd | 88 | SCM_NEWCELL (z); |
9de33deb MD |
89 | symcell = set ? scm_sysintern0 (name) : scm_intern0 (name); |
90 | ||
91 | entry = scm_subr_table_size; | |
92 | scm_subr_table[entry].handle = z; | |
93 | scm_subr_table[entry].name = SCM_CAR (symcell); | |
94 | scm_subr_table[entry].generic = 0; | |
95 | scm_subr_table[entry].properties = SCM_EOL; | |
96 | scm_subr_table[entry].documentation = SCM_BOOL_F; | |
97 | ||
0f2d19dd | 98 | SCM_SUBRF (z) = fcn; |
54778cd3 | 99 | SCM_SET_CELL_TYPE (z, (entry << 8) + type); |
9de33deb MD |
100 | scm_subr_table_size++; |
101 | ||
0f2d19dd | 102 | if (set) |
a6c64c3c | 103 | SCM_SETCDR (symcell, z); |
9de33deb | 104 | |
0f2d19dd JB |
105 | return z; |
106 | } | |
107 | ||
9de33deb MD |
108 | /* This function isn't currently used since subrs are never freed. */ |
109 | /* *fixme* Need mutex here. */ | |
110 | void | |
111 | scm_free_subr_entry (SCM subr) | |
112 | { | |
113 | int entry = SCM_SUBRNUM (subr); | |
114 | /* Move last entry in table to the free position */ | |
115 | scm_subr_table[entry] = scm_subr_table[scm_subr_table_size - 1]; | |
116 | SCM_SET_SUBRNUM (scm_subr_table[entry].handle, entry); | |
117 | scm_subr_table_size--; | |
118 | } | |
1cc91f1b | 119 | |
0f2d19dd | 120 | SCM |
1bbd0b84 | 121 | scm_make_subr (const char *name, int type, SCM (*fcn) ()) |
0f2d19dd JB |
122 | { |
123 | return scm_make_subr_opt (name, type, fcn, 1); | |
124 | } | |
125 | ||
9de33deb MD |
126 | SCM |
127 | scm_make_subr_with_generic (const char *name, int type, SCM (*fcn) (), SCM *gf) | |
128 | { | |
129 | SCM subr = scm_make_subr_opt (name, type, fcn, 1); | |
130 | scm_subr_table[scm_subr_table_size - 1].generic = gf; | |
131 | return subr; | |
132 | } | |
133 | ||
134 | void | |
135 | scm_mark_subr_table () | |
136 | { | |
137 | int i; | |
138 | for (i = 0; i < scm_subr_table_size; ++i) | |
139 | { | |
140 | SCM_SETGC8MARK (scm_subr_table[i].name); | |
141 | if (scm_subr_table[i].generic && *scm_subr_table[i].generic) | |
142 | scm_gc_mark (*scm_subr_table[i].generic); | |
143 | if (SCM_NIMP (scm_subr_table[i].properties)) | |
144 | scm_gc_mark (scm_subr_table[i].properties); | |
145 | if (SCM_NIMP (scm_subr_table[i].documentation)) | |
146 | scm_gc_mark (scm_subr_table[i].documentation); | |
147 | } | |
148 | } | |
1cc91f1b | 149 | |
9de33deb MD |
150 | |
151 | #ifdef CCLO | |
0f2d19dd | 152 | SCM |
1bbd0b84 | 153 | scm_makcclo (SCM proc, long len) |
0f2d19dd JB |
154 | { |
155 | SCM s; | |
156 | SCM_NEWCELL (s); | |
157 | SCM_DEFER_INTS; | |
158 | SCM_SETCHARS (s, scm_must_malloc (len * sizeof (SCM), "compiled-closure")); | |
159 | SCM_SETLENGTH (s, len, scm_tc7_cclo); | |
160 | while (--len) | |
161 | SCM_VELTS (s)[len] = SCM_UNSPECIFIED; | |
162 | SCM_CCLO_SUBR (s) = proc; | |
163 | SCM_ALLOW_INTS; | |
164 | return s; | |
165 | } | |
d88094f9 MD |
166 | |
167 | /* Undocumented debugging procedure */ | |
168 | #ifdef GUILE_DEBUG | |
a1ec6916 | 169 | SCM_DEFINE (scm_make_cclo, "make-cclo", 2, 0, 0, |
1bbd0b84 GB |
170 | (SCM proc, SCM len), |
171 | "") | |
172 | #define FUNC_NAME s_scm_make_cclo | |
d88094f9 MD |
173 | { |
174 | return scm_makcclo (proc, SCM_INUM (len)); | |
175 | } | |
1bbd0b84 | 176 | #undef FUNC_NAME |
d88094f9 | 177 | #endif |
0f2d19dd JB |
178 | #endif |
179 | ||
180 | ||
181 | ||
3b3b36dd | 182 | SCM_DEFINE (scm_procedure_p, "procedure?", 1, 0, 0, |
1bbd0b84 GB |
183 | (SCM obj), |
184 | "") | |
185 | #define FUNC_NAME s_scm_procedure_p | |
0f2d19dd JB |
186 | { |
187 | if (SCM_NIMP (obj)) | |
188 | switch (SCM_TYP7 (obj)) | |
189 | { | |
bdc88419 MD |
190 | case scm_tcs_cons_gloc: |
191 | if (!SCM_I_OPERATORP (obj)) | |
192 | break; | |
0f2d19dd JB |
193 | case scm_tcs_closures: |
194 | case scm_tc7_contin: | |
195 | case scm_tcs_subrs: | |
196 | #ifdef CCLO | |
197 | case scm_tc7_cclo: | |
198 | #endif | |
b4cd6492 | 199 | case scm_tc7_pws: |
0f2d19dd JB |
200 | return SCM_BOOL_T; |
201 | default: | |
202 | return SCM_BOOL_F; | |
203 | } | |
204 | return SCM_BOOL_F; | |
205 | } | |
1bbd0b84 | 206 | #undef FUNC_NAME |
0f2d19dd | 207 | |
3b3b36dd | 208 | SCM_DEFINE (scm_closure_p, "closure?", 1, 0, 0, |
1bbd0b84 GB |
209 | (SCM obj), |
210 | "") | |
211 | #define FUNC_NAME s_scm_closure_p | |
ecdb5eb2 | 212 | { |
0c95b57d | 213 | return SCM_BOOL(SCM_CLOSUREP (obj)); |
ecdb5eb2 | 214 | } |
1bbd0b84 | 215 | #undef FUNC_NAME |
ecdb5eb2 | 216 | |
3b3b36dd | 217 | SCM_DEFINE (scm_thunk_p, "thunk?", 1, 0, 0, |
1bbd0b84 GB |
218 | (SCM obj), |
219 | "") | |
220 | #define FUNC_NAME s_scm_thunk_p | |
44bd53b9 MD |
221 | { |
222 | if (SCM_NIMP (obj)) | |
b4cd6492 MD |
223 | { |
224 | again: | |
225 | switch (SCM_TYP7 (obj)) | |
226 | { | |
227 | case scm_tcs_closures: | |
228 | if (SCM_NULLP (SCM_CAR (SCM_CODE (obj)))) | |
229 | return SCM_BOOL_T; | |
230 | case scm_tc7_subr_0: | |
231 | case scm_tc7_subr_1o: | |
232 | case scm_tc7_lsubr: | |
233 | case scm_tc7_rpsubr: | |
234 | case scm_tc7_asubr: | |
44bd53b9 | 235 | #ifdef CCLO |
b4cd6492 | 236 | case scm_tc7_cclo: |
44bd53b9 | 237 | #endif |
b4cd6492 MD |
238 | return SCM_BOOL_T; |
239 | case scm_tc7_pws: | |
240 | obj = SCM_PROCEDURE (obj); | |
241 | goto again; | |
242 | default: | |
243 | ; | |
244 | } | |
245 | } | |
44bd53b9 MD |
246 | return SCM_BOOL_F; |
247 | } | |
1bbd0b84 | 248 | #undef FUNC_NAME |
44bd53b9 | 249 | |
9de33deb MD |
250 | /* Only used internally. */ |
251 | int | |
252 | scm_subr_p (SCM obj) | |
253 | { | |
254 | if (SCM_NIMP (obj)) | |
255 | switch (SCM_TYP7 (obj)) | |
256 | { | |
257 | case scm_tcs_subrs: | |
258 | return 1; | |
259 | default: | |
260 | ; | |
261 | } | |
262 | return 0; | |
263 | } | |
264 | ||
3b3b36dd | 265 | SCM_DEFINE (scm_procedure_documentation, "procedure-documentation", 1, 0, 0, |
1bbd0b84 | 266 | (SCM proc), |
b380b885 MD |
267 | "Return the documentation string associated with @code{proc}. By\n" |
268 | "convention, if a procedure contains more than one expression and the\n" | |
269 | "first expression is a string constant, that string is assumed to contain\n" | |
270 | "documentation for that procedure.") | |
1bbd0b84 | 271 | #define FUNC_NAME s_scm_procedure_documentation |
c2c82fba MD |
272 | { |
273 | SCM code; | |
54778cd3 | 274 | SCM_ASSERT (SCM_TRUE_P (scm_procedure_p (proc)) && SCM_NIMP (proc) && SCM_TYP7 (proc) != scm_tc7_contin, |
1bbd0b84 | 275 | proc, SCM_ARG1, FUNC_NAME); |
c2c82fba MD |
276 | switch (SCM_TYP7 (proc)) |
277 | { | |
278 | case scm_tcs_closures: | |
279 | code = SCM_CDR (SCM_CODE (proc)); | |
280 | if (SCM_IMP (SCM_CDR (code))) | |
281 | return SCM_BOOL_F; | |
282 | code = SCM_CAR (code); | |
283 | if (SCM_IMP (code)) | |
284 | return SCM_BOOL_F; | |
285 | if (SCM_STRINGP (code)) | |
286 | return code; | |
287 | default: | |
288 | return SCM_BOOL_F; | |
289 | /* | |
290 | case scm_tcs_subrs: | |
291 | #ifdef CCLO | |
292 | case scm_tc7_cclo: | |
293 | #endif | |
294 | */ | |
295 | } | |
296 | } | |
1bbd0b84 | 297 | #undef FUNC_NAME |
c2c82fba | 298 | |
0f2d19dd | 299 | |
b4cd6492 MD |
300 | /* Procedure-with-setter |
301 | */ | |
302 | ||
a1ec6916 | 303 | SCM_DEFINE (scm_procedure_with_setter_p, "procedure-with-setter?", 1, 0, 0, |
1bbd0b84 | 304 | (SCM obj), |
b380b885 | 305 | "") |
1bbd0b84 | 306 | #define FUNC_NAME s_scm_procedure_with_setter_p |
b4cd6492 | 307 | { |
0c95b57d | 308 | return SCM_BOOL(SCM_PROCEDURE_WITH_SETTER_P (obj)); |
b4cd6492 | 309 | } |
1bbd0b84 | 310 | #undef FUNC_NAME |
b4cd6492 | 311 | |
a1ec6916 | 312 | SCM_DEFINE (scm_make_procedure_with_setter, "make-procedure-with-setter", 2, 0, 0, |
1bbd0b84 | 313 | (SCM procedure, SCM setter), |
b380b885 | 314 | "") |
1bbd0b84 | 315 | #define FUNC_NAME s_scm_make_procedure_with_setter |
b4cd6492 MD |
316 | { |
317 | SCM z; | |
e1f8eb2b MD |
318 | SCM_VALIDATE_PROC (1, procedure); |
319 | SCM_VALIDATE_PROC (2, setter); | |
320 | SCM_NEWCELL2 (z); | |
b4cd6492 | 321 | SCM_ENTER_A_SECTION; |
0cbaaf0b DH |
322 | SCM_SET_CELL_OBJECT_1 (z, procedure); |
323 | SCM_SET_CELL_OBJECT_2 (z, setter); | |
54778cd3 | 324 | SCM_SET_CELL_TYPE (z, scm_tc7_pws); |
b4cd6492 MD |
325 | SCM_EXIT_A_SECTION; |
326 | return z; | |
327 | } | |
1bbd0b84 | 328 | #undef FUNC_NAME |
b4cd6492 | 329 | |
a1ec6916 | 330 | SCM_DEFINE (scm_procedure, "procedure", 1, 0, 0, |
1bbd0b84 | 331 | (SCM proc), |
b380b885 | 332 | "") |
1bbd0b84 | 333 | #define FUNC_NAME s_scm_procedure |
b4cd6492 | 334 | { |
e1f8eb2b | 335 | SCM_VALIDATE_NIM (1, proc); |
b4cd6492 MD |
336 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
337 | return SCM_PROCEDURE (proc); | |
338 | else if (SCM_STRUCTP (proc)) | |
339 | { | |
1bbd0b84 | 340 | SCM_ASSERT (SCM_I_OPERATORP (proc), proc, SCM_ARG1, FUNC_NAME); |
b4cd6492 MD |
341 | return proc; |
342 | } | |
1bbd0b84 | 343 | SCM_WRONG_TYPE_ARG (1, proc); |
4260a7fc | 344 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 345 | } |
1bbd0b84 | 346 | #undef FUNC_NAME |
b4cd6492 | 347 | |
f5267231 | 348 | SCM_GPROC (s_setter, "setter", 1, 0, 0, scm_setter, g_setter); |
b4cd6492 MD |
349 | |
350 | SCM | |
351 | scm_setter (SCM proc) | |
352 | { | |
f5267231 | 353 | SCM_GASSERT1 (SCM_NIMP (proc), g_setter, proc, SCM_ARG1, s_setter); |
b4cd6492 MD |
354 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
355 | return SCM_SETTER (proc); | |
356 | else if (SCM_STRUCTP (proc)) | |
357 | { | |
c72a774a | 358 | SCM setter; |
f5267231 MD |
359 | SCM_GASSERT1 (SCM_I_OPERATORP (proc), |
360 | g_setter, proc, SCM_ARG1, s_setter); | |
c72a774a MD |
361 | setter = (SCM_I_ENTITYP (proc) |
362 | ? SCM_ENTITY_SETTER (proc) | |
363 | : SCM_OPERATOR_SETTER (proc)); | |
364 | if (SCM_NIMP (setter)) | |
365 | return setter; | |
366 | /* fall through */ | |
b4cd6492 | 367 | } |
f5267231 | 368 | SCM_WTA_DISPATCH_1 (g_setter, proc, SCM_ARG1, s_setter); |
4260a7fc | 369 | return SCM_BOOL_F; |
b4cd6492 | 370 | } |
1cc91f1b | 371 | |
9de33deb | 372 | |
0f2d19dd | 373 | void |
1bbd0b84 | 374 | scm_init_iprocs(const scm_iproc *subra, int type) |
0f2d19dd JB |
375 | { |
376 | for(;subra->scm_string; subra++) | |
377 | scm_make_subr(subra->scm_string, | |
378 | type, | |
379 | subra->cproc); | |
380 | } | |
381 | ||
382 | ||
9de33deb MD |
383 | void |
384 | scm_init_subr_table () | |
385 | { | |
386 | scm_subr_table | |
387 | = ((scm_subr_entry *) | |
388 | scm_must_malloc (sizeof (scm_subr_entry) * scm_subr_table_room, | |
389 | "scm_subr_table")); | |
390 | } | |
1cc91f1b | 391 | |
0f2d19dd JB |
392 | void |
393 | scm_init_procs () | |
0f2d19dd | 394 | { |
a0599745 | 395 | #include "libguile/procs.x" |
0f2d19dd | 396 | } |
89e00824 ML |
397 | |
398 | /* | |
399 | Local Variables: | |
400 | c-file-style: "gnu" | |
401 | End: | |
402 | */ |