Commit | Line | Data |
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78a0461a | 1 | /* Copyright (C) 1995, 1996, 1997, 1999 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> | |
48 | #include "_scm.h" | |
49 | ||
bdc88419 MD |
50 | #include "objects.h" |
51 | ||
1bbd0b84 | 52 | #include "scm_validate.h" |
20e6290e | 53 | #include "procs.h" |
0f2d19dd JB |
54 | \f |
55 | ||
56 | ||
57 | /* {Procedures} | |
58 | */ | |
59 | ||
9de33deb MD |
60 | scm_subr_entry *scm_subr_table; |
61 | ||
98f9c984 | 62 | /* libguile contained approx. 700 primitive procedures on 24 Aug 1999. */ |
9de33deb MD |
63 | |
64 | int scm_subr_table_size = 0; | |
65 | int scm_subr_table_room = 750; | |
1cc91f1b | 66 | |
0f2d19dd | 67 | SCM |
1bbd0b84 | 68 | scm_make_subr_opt (const char *name, int type, SCM (*fcn) (), int set) |
0f2d19dd JB |
69 | { |
70 | SCM symcell; | |
0f2d19dd | 71 | register SCM z; |
9de33deb MD |
72 | int entry; |
73 | ||
74 | if (scm_subr_table_size == scm_subr_table_room) | |
75 | { | |
98f9c984 JB |
76 | scm_sizet new_size = scm_subr_table_room * 3 / 2; |
77 | void *new_table | |
78 | = scm_must_realloc ((char *) scm_subr_table, | |
79 | sizeof (scm_subr_entry) * scm_subr_table_room, | |
80 | sizeof (scm_subr_entry) * new_size, | |
81 | "scm_make_subr_opt"); | |
9de33deb MD |
82 | scm_subr_table = new_table; |
83 | scm_subr_table_room = new_size; | |
84 | } | |
85 | ||
0f2d19dd | 86 | SCM_NEWCELL (z); |
9de33deb MD |
87 | symcell = set ? scm_sysintern0 (name) : scm_intern0 (name); |
88 | ||
89 | entry = scm_subr_table_size; | |
90 | scm_subr_table[entry].handle = z; | |
91 | scm_subr_table[entry].name = SCM_CAR (symcell); | |
92 | scm_subr_table[entry].generic = 0; | |
93 | scm_subr_table[entry].properties = SCM_EOL; | |
94 | scm_subr_table[entry].documentation = SCM_BOOL_F; | |
95 | ||
0f2d19dd | 96 | SCM_SUBRF (z) = fcn; |
9de33deb MD |
97 | SCM_SETCAR (z, (entry << 8) + type); |
98 | scm_subr_table_size++; | |
99 | ||
0f2d19dd | 100 | if (set) |
a6c64c3c | 101 | SCM_SETCDR (symcell, z); |
9de33deb | 102 | |
0f2d19dd JB |
103 | return z; |
104 | } | |
105 | ||
9de33deb MD |
106 | /* This function isn't currently used since subrs are never freed. */ |
107 | /* *fixme* Need mutex here. */ | |
108 | void | |
109 | scm_free_subr_entry (SCM subr) | |
110 | { | |
111 | int entry = SCM_SUBRNUM (subr); | |
112 | /* Move last entry in table to the free position */ | |
113 | scm_subr_table[entry] = scm_subr_table[scm_subr_table_size - 1]; | |
114 | SCM_SET_SUBRNUM (scm_subr_table[entry].handle, entry); | |
115 | scm_subr_table_size--; | |
116 | } | |
1cc91f1b | 117 | |
0f2d19dd | 118 | SCM |
1bbd0b84 | 119 | scm_make_subr (const char *name, int type, SCM (*fcn) ()) |
0f2d19dd JB |
120 | { |
121 | return scm_make_subr_opt (name, type, fcn, 1); | |
122 | } | |
123 | ||
9de33deb MD |
124 | SCM |
125 | scm_make_subr_with_generic (const char *name, int type, SCM (*fcn) (), SCM *gf) | |
126 | { | |
127 | SCM subr = scm_make_subr_opt (name, type, fcn, 1); | |
128 | scm_subr_table[scm_subr_table_size - 1].generic = gf; | |
129 | return subr; | |
130 | } | |
131 | ||
132 | void | |
133 | scm_mark_subr_table () | |
134 | { | |
135 | int i; | |
136 | for (i = 0; i < scm_subr_table_size; ++i) | |
137 | { | |
138 | SCM_SETGC8MARK (scm_subr_table[i].name); | |
139 | if (scm_subr_table[i].generic && *scm_subr_table[i].generic) | |
140 | scm_gc_mark (*scm_subr_table[i].generic); | |
141 | if (SCM_NIMP (scm_subr_table[i].properties)) | |
142 | scm_gc_mark (scm_subr_table[i].properties); | |
143 | if (SCM_NIMP (scm_subr_table[i].documentation)) | |
144 | scm_gc_mark (scm_subr_table[i].documentation); | |
145 | } | |
146 | } | |
1cc91f1b | 147 | |
9de33deb MD |
148 | |
149 | #ifdef CCLO | |
0f2d19dd | 150 | SCM |
1bbd0b84 | 151 | scm_makcclo (SCM proc, long len) |
0f2d19dd JB |
152 | { |
153 | SCM s; | |
154 | SCM_NEWCELL (s); | |
155 | SCM_DEFER_INTS; | |
156 | SCM_SETCHARS (s, scm_must_malloc (len * sizeof (SCM), "compiled-closure")); | |
157 | SCM_SETLENGTH (s, len, scm_tc7_cclo); | |
158 | while (--len) | |
159 | SCM_VELTS (s)[len] = SCM_UNSPECIFIED; | |
160 | SCM_CCLO_SUBR (s) = proc; | |
161 | SCM_ALLOW_INTS; | |
162 | return s; | |
163 | } | |
d88094f9 MD |
164 | |
165 | /* Undocumented debugging procedure */ | |
166 | #ifdef GUILE_DEBUG | |
1bbd0b84 GB |
167 | GUILE_PROC (scm_make_cclo, "make-cclo", 2, 0, 0, |
168 | (SCM proc, SCM len), | |
169 | "") | |
170 | #define FUNC_NAME s_scm_make_cclo | |
d88094f9 MD |
171 | { |
172 | return scm_makcclo (proc, SCM_INUM (len)); | |
173 | } | |
1bbd0b84 | 174 | #undef FUNC_NAME |
d88094f9 | 175 | #endif |
0f2d19dd JB |
176 | #endif |
177 | ||
178 | ||
179 | ||
1bbd0b84 GB |
180 | GUILE_PROC(scm_procedure_p, "procedure?", 1, 0, 0, |
181 | (SCM obj), | |
182 | "") | |
183 | #define FUNC_NAME s_scm_procedure_p | |
0f2d19dd JB |
184 | { |
185 | if (SCM_NIMP (obj)) | |
186 | switch (SCM_TYP7 (obj)) | |
187 | { | |
bdc88419 MD |
188 | case scm_tcs_cons_gloc: |
189 | if (!SCM_I_OPERATORP (obj)) | |
190 | break; | |
0f2d19dd JB |
191 | case scm_tcs_closures: |
192 | case scm_tc7_contin: | |
193 | case scm_tcs_subrs: | |
194 | #ifdef CCLO | |
195 | case scm_tc7_cclo: | |
196 | #endif | |
b4cd6492 | 197 | case scm_tc7_pws: |
0f2d19dd JB |
198 | return SCM_BOOL_T; |
199 | default: | |
200 | return SCM_BOOL_F; | |
201 | } | |
202 | return SCM_BOOL_F; | |
203 | } | |
1bbd0b84 | 204 | #undef FUNC_NAME |
0f2d19dd | 205 | |
1bbd0b84 GB |
206 | GUILE_PROC(scm_closure_p, "closure?", 1, 0, 0, |
207 | (SCM obj), | |
208 | "") | |
209 | #define FUNC_NAME s_scm_closure_p | |
ecdb5eb2 | 210 | { |
0c95b57d | 211 | return SCM_BOOL(SCM_CLOSUREP (obj)); |
ecdb5eb2 | 212 | } |
1bbd0b84 | 213 | #undef FUNC_NAME |
ecdb5eb2 | 214 | |
1bbd0b84 GB |
215 | GUILE_PROC(scm_thunk_p, "thunk?", 1, 0, 0, |
216 | (SCM obj), | |
217 | "") | |
218 | #define FUNC_NAME s_scm_thunk_p | |
44bd53b9 MD |
219 | { |
220 | if (SCM_NIMP (obj)) | |
b4cd6492 MD |
221 | { |
222 | again: | |
223 | switch (SCM_TYP7 (obj)) | |
224 | { | |
225 | case scm_tcs_closures: | |
226 | if (SCM_NULLP (SCM_CAR (SCM_CODE (obj)))) | |
227 | return SCM_BOOL_T; | |
228 | case scm_tc7_subr_0: | |
229 | case scm_tc7_subr_1o: | |
230 | case scm_tc7_lsubr: | |
231 | case scm_tc7_rpsubr: | |
232 | case scm_tc7_asubr: | |
44bd53b9 | 233 | #ifdef CCLO |
b4cd6492 | 234 | case scm_tc7_cclo: |
44bd53b9 | 235 | #endif |
b4cd6492 MD |
236 | return SCM_BOOL_T; |
237 | case scm_tc7_pws: | |
238 | obj = SCM_PROCEDURE (obj); | |
239 | goto again; | |
240 | default: | |
241 | ; | |
242 | } | |
243 | } | |
44bd53b9 MD |
244 | return SCM_BOOL_F; |
245 | } | |
1bbd0b84 | 246 | #undef FUNC_NAME |
44bd53b9 | 247 | |
9de33deb MD |
248 | /* Only used internally. */ |
249 | int | |
250 | scm_subr_p (SCM obj) | |
251 | { | |
252 | if (SCM_NIMP (obj)) | |
253 | switch (SCM_TYP7 (obj)) | |
254 | { | |
255 | case scm_tcs_subrs: | |
256 | return 1; | |
257 | default: | |
258 | ; | |
259 | } | |
260 | return 0; | |
261 | } | |
262 | ||
1bbd0b84 GB |
263 | GUILE_PROC(scm_procedure_documentation, "procedure-documentation", 1, 0, 0, |
264 | (SCM proc), | |
4079f87e GB |
265 | "Return the documentation string associated with @code{proc}. By |
266 | convention, if a procedure contains more than one expression and the | |
267 | first expression is a string constant, that string is assumed to contain | |
268 | documentation for that procedure.") | |
1bbd0b84 | 269 | #define FUNC_NAME s_scm_procedure_documentation |
c2c82fba MD |
270 | { |
271 | SCM code; | |
272 | SCM_ASSERT (SCM_BOOL_T == scm_procedure_p (proc) && SCM_NIMP (proc) && SCM_TYP7 (proc) != scm_tc7_contin, | |
1bbd0b84 | 273 | proc, SCM_ARG1, FUNC_NAME); |
c2c82fba MD |
274 | switch (SCM_TYP7 (proc)) |
275 | { | |
276 | case scm_tcs_closures: | |
277 | code = SCM_CDR (SCM_CODE (proc)); | |
278 | if (SCM_IMP (SCM_CDR (code))) | |
279 | return SCM_BOOL_F; | |
280 | code = SCM_CAR (code); | |
281 | if (SCM_IMP (code)) | |
282 | return SCM_BOOL_F; | |
283 | if (SCM_STRINGP (code)) | |
284 | return code; | |
285 | default: | |
286 | return SCM_BOOL_F; | |
287 | /* | |
288 | case scm_tcs_subrs: | |
289 | #ifdef CCLO | |
290 | case scm_tc7_cclo: | |
291 | #endif | |
292 | */ | |
293 | } | |
294 | } | |
1bbd0b84 | 295 | #undef FUNC_NAME |
c2c82fba | 296 | |
0f2d19dd | 297 | |
b4cd6492 MD |
298 | /* Procedure-with-setter |
299 | */ | |
300 | ||
1bbd0b84 GB |
301 | GUILE_PROC (scm_procedure_with_setter_p, "procedure-with-setter?", 1, 0, 0, |
302 | (SCM obj), | |
717050c8 | 303 | "") |
1bbd0b84 | 304 | #define FUNC_NAME s_scm_procedure_with_setter_p |
b4cd6492 | 305 | { |
0c95b57d | 306 | return SCM_BOOL(SCM_PROCEDURE_WITH_SETTER_P (obj)); |
b4cd6492 | 307 | } |
1bbd0b84 | 308 | #undef FUNC_NAME |
b4cd6492 | 309 | |
1bbd0b84 GB |
310 | GUILE_PROC (scm_make_procedure_with_setter, "make-procedure-with-setter", 2, 0, 0, |
311 | (SCM procedure, SCM setter), | |
717050c8 | 312 | "") |
1bbd0b84 | 313 | #define FUNC_NAME s_scm_make_procedure_with_setter |
b4cd6492 MD |
314 | { |
315 | SCM z; | |
1bbd0b84 GB |
316 | SCM_VALIDATE_PROC(1,procedure); |
317 | SCM_VALIDATE_PROC(2,setter); | |
b4cd6492 MD |
318 | SCM_NEWCELL (z); |
319 | SCM_ENTER_A_SECTION; | |
320 | SCM_SETCDR (z, scm_cons (procedure, setter)); | |
321 | SCM_SETCAR (z, scm_tc7_pws); | |
322 | SCM_EXIT_A_SECTION; | |
323 | return z; | |
324 | } | |
1bbd0b84 | 325 | #undef FUNC_NAME |
b4cd6492 | 326 | |
1bbd0b84 GB |
327 | GUILE_PROC (scm_procedure, "procedure", 1, 0, 0, |
328 | (SCM proc), | |
717050c8 | 329 | "") |
1bbd0b84 | 330 | #define FUNC_NAME s_scm_procedure |
b4cd6492 | 331 | { |
6b5a304f | 332 | SCM_VALIDATE_NIM (1,proc); |
b4cd6492 MD |
333 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
334 | return SCM_PROCEDURE (proc); | |
335 | else if (SCM_STRUCTP (proc)) | |
336 | { | |
1bbd0b84 | 337 | SCM_ASSERT (SCM_I_OPERATORP (proc), proc, SCM_ARG1, FUNC_NAME); |
b4cd6492 MD |
338 | return proc; |
339 | } | |
1bbd0b84 | 340 | SCM_WRONG_TYPE_ARG (1, proc); |
b4cd6492 MD |
341 | return 0; /* not reached */ |
342 | } | |
1bbd0b84 | 343 | #undef FUNC_NAME |
b4cd6492 | 344 | |
f5267231 | 345 | SCM_GPROC (s_setter, "setter", 1, 0, 0, scm_setter, g_setter); |
b4cd6492 MD |
346 | |
347 | SCM | |
348 | scm_setter (SCM proc) | |
349 | { | |
f5267231 | 350 | SCM_GASSERT1 (SCM_NIMP (proc), g_setter, proc, SCM_ARG1, s_setter); |
b4cd6492 MD |
351 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
352 | return SCM_SETTER (proc); | |
353 | else if (SCM_STRUCTP (proc)) | |
354 | { | |
c72a774a | 355 | SCM setter; |
f5267231 MD |
356 | SCM_GASSERT1 (SCM_I_OPERATORP (proc), |
357 | g_setter, proc, SCM_ARG1, s_setter); | |
c72a774a MD |
358 | setter = (SCM_I_ENTITYP (proc) |
359 | ? SCM_ENTITY_SETTER (proc) | |
360 | : SCM_OPERATOR_SETTER (proc)); | |
361 | if (SCM_NIMP (setter)) | |
362 | return setter; | |
363 | /* fall through */ | |
b4cd6492 | 364 | } |
f5267231 | 365 | SCM_WTA_DISPATCH_1 (g_setter, proc, SCM_ARG1, s_setter); |
b4cd6492 MD |
366 | return 0; |
367 | } | |
1cc91f1b | 368 | |
9de33deb | 369 | |
0f2d19dd | 370 | void |
1bbd0b84 | 371 | scm_init_iprocs(const scm_iproc *subra, int type) |
0f2d19dd JB |
372 | { |
373 | for(;subra->scm_string; subra++) | |
374 | scm_make_subr(subra->scm_string, | |
375 | type, | |
376 | subra->cproc); | |
377 | } | |
378 | ||
379 | ||
9de33deb MD |
380 | void |
381 | scm_init_subr_table () | |
382 | { | |
383 | scm_subr_table | |
384 | = ((scm_subr_entry *) | |
385 | scm_must_malloc (sizeof (scm_subr_entry) * scm_subr_table_room, | |
386 | "scm_subr_table")); | |
387 | } | |
1cc91f1b | 388 | |
0f2d19dd JB |
389 | void |
390 | scm_init_procs () | |
0f2d19dd JB |
391 | { |
392 | #include "procs.x" | |
393 | } |