Commit | Line | Data |
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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 | ||
9de33deb | 89 | entry = scm_subr_table_size; |
16d4699b | 90 | z = scm_alloc_cell ((entry << 8) + type, (scm_t_bits) fcn); |
9de33deb | 91 | scm_subr_table[entry].handle = z; |
c88a8162 | 92 | scm_subr_table[entry].name = scm_str2symbol (name); |
9de33deb | 93 | scm_subr_table[entry].generic = 0; |
23a62df4 | 94 | scm_subr_table[entry].properties = SCM_EOL; |
9de33deb MD |
95 | scm_subr_table_size++; |
96 | ||
0f2d19dd JB |
97 | return z; |
98 | } | |
99 | ||
c88a8162 | 100 | SCM |
c014a02e | 101 | scm_c_define_subr (const char *name, long type, SCM (*fcn) ()) |
c88a8162 MV |
102 | { |
103 | SCM subr = scm_c_make_subr (name, type, fcn); | |
104 | scm_define (SCM_SUBR_ENTRY(subr).name, subr); | |
105 | return subr; | |
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 | { | |
c014a02e | 113 | long entry = SCM_SUBRNUM (subr); |
9de33deb MD |
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 | |
c88a8162 MV |
120 | SCM |
121 | scm_c_make_subr_with_generic (const char *name, | |
c014a02e | 122 | long type, SCM (*fcn) (), SCM *gf) |
0f2d19dd | 123 | { |
c88a8162 MV |
124 | SCM subr = scm_c_make_subr (name, type, fcn); |
125 | SCM_SUBR_ENTRY(subr).generic = gf; | |
126 | return subr; | |
0f2d19dd JB |
127 | } |
128 | ||
9de33deb | 129 | SCM |
c88a8162 | 130 | scm_c_define_subr_with_generic (const char *name, |
c014a02e | 131 | long type, SCM (*fcn) (), SCM *gf) |
9de33deb | 132 | { |
c88a8162 MV |
133 | SCM subr = scm_c_make_subr_with_generic (name, type, fcn, gf); |
134 | scm_define (SCM_SUBR_ENTRY(subr).name, subr); | |
9de33deb MD |
135 | return subr; |
136 | } | |
137 | ||
138 | void | |
139 | scm_mark_subr_table () | |
140 | { | |
c014a02e | 141 | long i; |
9de33deb MD |
142 | for (i = 0; i < scm_subr_table_size; ++i) |
143 | { | |
fd336365 | 144 | SCM_SETGCMARK (scm_subr_table[i].name); |
9de33deb MD |
145 | if (scm_subr_table[i].generic && *scm_subr_table[i].generic) |
146 | scm_gc_mark (*scm_subr_table[i].generic); | |
23a62df4 DH |
147 | if (SCM_NIMP (scm_subr_table[i].properties)) |
148 | scm_gc_mark (scm_subr_table[i].properties); | |
9de33deb MD |
149 | } |
150 | } | |
1cc91f1b | 151 | |
9de33deb MD |
152 | |
153 | #ifdef CCLO | |
0f2d19dd | 154 | SCM |
1be6b49c | 155 | scm_makcclo (SCM proc, size_t len) |
0f2d19dd | 156 | { |
92c2555f | 157 | scm_t_bits *base = scm_must_malloc (len * sizeof (scm_t_bits), "compiled-closure"); |
74cc8503 | 158 | unsigned long i; |
0f2d19dd | 159 | SCM s; |
74cc8503 DH |
160 | |
161 | for (i = 0; i < len; ++i) | |
162 | base [i] = SCM_UNPACK (SCM_UNSPECIFIED); | |
163 | ||
16d4699b | 164 | s = scm_alloc_cell (SCM_MAKE_CCLO_TAG (len), (scm_t_bits) base); |
74cc8503 | 165 | SCM_SET_CCLO_SUBR (s, proc); |
0f2d19dd JB |
166 | return s; |
167 | } | |
d88094f9 MD |
168 | |
169 | /* Undocumented debugging procedure */ | |
170 | #ifdef GUILE_DEBUG | |
a1ec6916 | 171 | SCM_DEFINE (scm_make_cclo, "make-cclo", 2, 0, 0, |
1bbd0b84 | 172 | (SCM proc, SCM len), |
8cf97abf MG |
173 | "Create a compiled closure for @var{proc}, which reserves\n" |
174 | "@var{len} objects for its usage.") | |
1bbd0b84 | 175 | #define FUNC_NAME s_scm_make_cclo |
d88094f9 MD |
176 | { |
177 | return scm_makcclo (proc, SCM_INUM (len)); | |
178 | } | |
1bbd0b84 | 179 | #undef FUNC_NAME |
d88094f9 | 180 | #endif |
0f2d19dd JB |
181 | #endif |
182 | ||
183 | ||
184 | ||
3b3b36dd | 185 | SCM_DEFINE (scm_procedure_p, "procedure?", 1, 0, 0, |
8cf97abf MG |
186 | (SCM obj), |
187 | "Return @code{#t} if @var{obj} is a procedure.") | |
1bbd0b84 | 188 | #define FUNC_NAME s_scm_procedure_p |
0f2d19dd JB |
189 | { |
190 | if (SCM_NIMP (obj)) | |
191 | switch (SCM_TYP7 (obj)) | |
192 | { | |
904a077d | 193 | case scm_tcs_struct: |
bdc88419 MD |
194 | if (!SCM_I_OPERATORP (obj)) |
195 | break; | |
0f2d19dd | 196 | case scm_tcs_closures: |
0f2d19dd JB |
197 | case scm_tcs_subrs: |
198 | #ifdef CCLO | |
199 | case scm_tc7_cclo: | |
200 | #endif | |
b4cd6492 | 201 | case scm_tc7_pws: |
0f2d19dd | 202 | return SCM_BOOL_T; |
0717dfd8 KN |
203 | case scm_tc7_smob: |
204 | return SCM_BOOL (SCM_SMOB_DESCRIPTOR (obj).apply); | |
0f2d19dd JB |
205 | default: |
206 | return SCM_BOOL_F; | |
207 | } | |
208 | return SCM_BOOL_F; | |
209 | } | |
1bbd0b84 | 210 | #undef FUNC_NAME |
0f2d19dd | 211 | |
3b3b36dd | 212 | SCM_DEFINE (scm_closure_p, "closure?", 1, 0, 0, |
1bbd0b84 | 213 | (SCM obj), |
8cf97abf | 214 | "Return @code{#t} if @var{obj} is a closure.") |
1bbd0b84 | 215 | #define FUNC_NAME s_scm_closure_p |
ecdb5eb2 | 216 | { |
726d810a | 217 | return SCM_BOOL (SCM_CLOSUREP (obj)); |
ecdb5eb2 | 218 | } |
1bbd0b84 | 219 | #undef FUNC_NAME |
ecdb5eb2 | 220 | |
3b3b36dd | 221 | SCM_DEFINE (scm_thunk_p, "thunk?", 1, 0, 0, |
8cf97abf MG |
222 | (SCM obj), |
223 | "Return @code{#t} if @var{obj} is a thunk.") | |
1bbd0b84 | 224 | #define FUNC_NAME s_scm_thunk_p |
44bd53b9 MD |
225 | { |
226 | if (SCM_NIMP (obj)) | |
b4cd6492 MD |
227 | { |
228 | again: | |
229 | switch (SCM_TYP7 (obj)) | |
230 | { | |
231 | case scm_tcs_closures: | |
726d810a | 232 | return SCM_BOOL (!SCM_CONSP (SCM_CLOSURE_FORMALS (obj))); |
b4cd6492 MD |
233 | case scm_tc7_subr_0: |
234 | case scm_tc7_subr_1o: | |
235 | case scm_tc7_lsubr: | |
236 | case scm_tc7_rpsubr: | |
237 | case scm_tc7_asubr: | |
44bd53b9 | 238 | #ifdef CCLO |
b4cd6492 | 239 | case scm_tc7_cclo: |
44bd53b9 | 240 | #endif |
b4cd6492 MD |
241 | return SCM_BOOL_T; |
242 | case scm_tc7_pws: | |
243 | obj = SCM_PROCEDURE (obj); | |
244 | goto again; | |
245 | default: | |
246 | ; | |
247 | } | |
248 | } | |
44bd53b9 MD |
249 | return SCM_BOOL_F; |
250 | } | |
1bbd0b84 | 251 | #undef FUNC_NAME |
44bd53b9 | 252 | |
9de33deb MD |
253 | /* Only used internally. */ |
254 | int | |
255 | scm_subr_p (SCM obj) | |
256 | { | |
257 | if (SCM_NIMP (obj)) | |
258 | switch (SCM_TYP7 (obj)) | |
259 | { | |
260 | case scm_tcs_subrs: | |
261 | return 1; | |
262 | default: | |
263 | ; | |
264 | } | |
265 | return 0; | |
266 | } | |
267 | ||
3b3b36dd | 268 | SCM_DEFINE (scm_procedure_documentation, "procedure-documentation", 1, 0, 0, |
1bbd0b84 | 269 | (SCM proc), |
b380b885 MD |
270 | "Return the documentation string associated with @code{proc}. By\n" |
271 | "convention, if a procedure contains more than one expression and the\n" | |
272 | "first expression is a string constant, that string is assumed to contain\n" | |
273 | "documentation for that procedure.") | |
1bbd0b84 | 274 | #define FUNC_NAME s_scm_procedure_documentation |
c2c82fba MD |
275 | { |
276 | SCM code; | |
5f144b10 | 277 | SCM_ASSERT (SCM_EQ_P (scm_procedure_p (proc), SCM_BOOL_T) && SCM_NIMP (proc), |
9a09deb1 | 278 | proc, SCM_ARG1, FUNC_NAME); |
c2c82fba MD |
279 | switch (SCM_TYP7 (proc)) |
280 | { | |
281 | case scm_tcs_closures: | |
f9450cdb | 282 | code = SCM_CLOSURE_BODY (proc); |
c2c82fba MD |
283 | if (SCM_IMP (SCM_CDR (code))) |
284 | return SCM_BOOL_F; | |
285 | code = SCM_CAR (code); | |
286 | if (SCM_IMP (code)) | |
287 | return SCM_BOOL_F; | |
288 | if (SCM_STRINGP (code)) | |
289 | return code; | |
290 | default: | |
291 | return SCM_BOOL_F; | |
292 | /* | |
293 | case scm_tcs_subrs: | |
294 | #ifdef CCLO | |
295 | case scm_tc7_cclo: | |
296 | #endif | |
297 | */ | |
298 | } | |
299 | } | |
1bbd0b84 | 300 | #undef FUNC_NAME |
c2c82fba | 301 | |
0f2d19dd | 302 | |
b4cd6492 MD |
303 | /* Procedure-with-setter |
304 | */ | |
305 | ||
a1ec6916 | 306 | SCM_DEFINE (scm_procedure_with_setter_p, "procedure-with-setter?", 1, 0, 0, |
1bbd0b84 | 307 | (SCM obj), |
8cf97abf MG |
308 | "Return @code{#t} if @var{obj} is a procedure with an\n" |
309 | "associated setter procedure.") | |
1bbd0b84 | 310 | #define FUNC_NAME s_scm_procedure_with_setter_p |
b4cd6492 | 311 | { |
0c95b57d | 312 | return SCM_BOOL(SCM_PROCEDURE_WITH_SETTER_P (obj)); |
b4cd6492 | 313 | } |
1bbd0b84 | 314 | #undef FUNC_NAME |
b4cd6492 | 315 | |
a1ec6916 | 316 | SCM_DEFINE (scm_make_procedure_with_setter, "make-procedure-with-setter", 2, 0, 0, |
1bbd0b84 | 317 | (SCM procedure, SCM setter), |
8cf97abf MG |
318 | "Create a new procedure which behaves like @var{procedure}, but\n" |
319 | "with the associated setter @var{setter}.") | |
1bbd0b84 | 320 | #define FUNC_NAME s_scm_make_procedure_with_setter |
b4cd6492 | 321 | { |
e1f8eb2b MD |
322 | SCM_VALIDATE_PROC (1, procedure); |
323 | SCM_VALIDATE_PROC (2, setter); | |
16d4699b MV |
324 | return scm_alloc_double_cell (scm_tc7_pws, |
325 | SCM_UNPACK (procedure), | |
326 | SCM_UNPACK (setter), 0); | |
b4cd6492 | 327 | } |
1bbd0b84 | 328 | #undef FUNC_NAME |
b4cd6492 | 329 | |
a1ec6916 | 330 | SCM_DEFINE (scm_procedure, "procedure", 1, 0, 0, |
1bbd0b84 | 331 | (SCM proc), |
8cf97abf MG |
332 | "Return the procedure of @var{proc}, which must be either a\n" |
333 | "procedure with setter, or an operator struct.") | |
1bbd0b84 | 334 | #define FUNC_NAME s_scm_procedure |
b4cd6492 | 335 | { |
e1f8eb2b | 336 | SCM_VALIDATE_NIM (1, proc); |
b4cd6492 MD |
337 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
338 | return SCM_PROCEDURE (proc); | |
339 | else if (SCM_STRUCTP (proc)) | |
340 | { | |
1bbd0b84 | 341 | SCM_ASSERT (SCM_I_OPERATORP (proc), proc, SCM_ARG1, FUNC_NAME); |
b4cd6492 MD |
342 | return proc; |
343 | } | |
1bbd0b84 | 344 | SCM_WRONG_TYPE_ARG (1, proc); |
4260a7fc | 345 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 346 | } |
1bbd0b84 | 347 | #undef FUNC_NAME |
b4cd6492 | 348 | |
f5267231 | 349 | SCM_GPROC (s_setter, "setter", 1, 0, 0, scm_setter, g_setter); |
b4cd6492 MD |
350 | |
351 | SCM | |
352 | scm_setter (SCM proc) | |
353 | { | |
f5267231 | 354 | SCM_GASSERT1 (SCM_NIMP (proc), g_setter, proc, SCM_ARG1, s_setter); |
b4cd6492 MD |
355 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
356 | return SCM_SETTER (proc); | |
357 | else if (SCM_STRUCTP (proc)) | |
358 | { | |
c72a774a | 359 | SCM setter; |
f5267231 MD |
360 | SCM_GASSERT1 (SCM_I_OPERATORP (proc), |
361 | g_setter, proc, SCM_ARG1, s_setter); | |
c72a774a MD |
362 | setter = (SCM_I_ENTITYP (proc) |
363 | ? SCM_ENTITY_SETTER (proc) | |
364 | : SCM_OPERATOR_SETTER (proc)); | |
365 | if (SCM_NIMP (setter)) | |
366 | return setter; | |
367 | /* fall through */ | |
b4cd6492 | 368 | } |
f5267231 | 369 | SCM_WTA_DISPATCH_1 (g_setter, proc, SCM_ARG1, s_setter); |
b038d983 | 370 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 371 | } |
1cc91f1b | 372 | |
9de33deb | 373 | |
9de33deb MD |
374 | void |
375 | scm_init_subr_table () | |
376 | { | |
377 | scm_subr_table | |
92c2555f MV |
378 | = ((scm_t_subr_entry *) |
379 | scm_must_malloc (sizeof (scm_t_subr_entry) * scm_subr_table_room, | |
9de33deb MD |
380 | "scm_subr_table")); |
381 | } | |
1cc91f1b | 382 | |
0f2d19dd JB |
383 | void |
384 | scm_init_procs () | |
0f2d19dd | 385 | { |
8dc9439f | 386 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 387 | #include "libguile/procs.x" |
8dc9439f | 388 | #endif |
0f2d19dd | 389 | } |
89e00824 ML |
390 | |
391 | /* | |
392 | Local Variables: | |
393 | c-file-style: "gnu" | |
394 | End: | |
395 | */ |