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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 | 80 | void *new_table |
4c9419ac MV |
81 | = scm_realloc ((char *) scm_subr_table, |
82 | sizeof (scm_t_subr_entry) * new_size); | |
9de33deb MD |
83 | scm_subr_table = new_table; |
84 | scm_subr_table_room = new_size; | |
85 | } | |
86 | ||
9de33deb | 87 | entry = scm_subr_table_size; |
16d4699b | 88 | z = scm_alloc_cell ((entry << 8) + type, (scm_t_bits) fcn); |
9de33deb | 89 | scm_subr_table[entry].handle = z; |
c88a8162 | 90 | scm_subr_table[entry].name = scm_str2symbol (name); |
9de33deb | 91 | scm_subr_table[entry].generic = 0; |
23a62df4 | 92 | scm_subr_table[entry].properties = SCM_EOL; |
9de33deb MD |
93 | scm_subr_table_size++; |
94 | ||
0f2d19dd JB |
95 | return z; |
96 | } | |
97 | ||
c88a8162 | 98 | SCM |
c014a02e | 99 | scm_c_define_subr (const char *name, long type, SCM (*fcn) ()) |
c88a8162 MV |
100 | { |
101 | SCM subr = scm_c_make_subr (name, type, fcn); | |
102 | scm_define (SCM_SUBR_ENTRY(subr).name, subr); | |
103 | return subr; | |
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 | { | |
c014a02e | 111 | long entry = SCM_SUBRNUM (subr); |
9de33deb MD |
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 | |
c88a8162 MV |
118 | SCM |
119 | scm_c_make_subr_with_generic (const char *name, | |
c014a02e | 120 | long type, SCM (*fcn) (), SCM *gf) |
0f2d19dd | 121 | { |
c88a8162 MV |
122 | SCM subr = scm_c_make_subr (name, type, fcn); |
123 | SCM_SUBR_ENTRY(subr).generic = gf; | |
124 | return subr; | |
0f2d19dd JB |
125 | } |
126 | ||
9de33deb | 127 | SCM |
c88a8162 | 128 | scm_c_define_subr_with_generic (const char *name, |
c014a02e | 129 | long type, SCM (*fcn) (), SCM *gf) |
9de33deb | 130 | { |
c88a8162 MV |
131 | SCM subr = scm_c_make_subr_with_generic (name, type, fcn, gf); |
132 | scm_define (SCM_SUBR_ENTRY(subr).name, subr); | |
9de33deb MD |
133 | return subr; |
134 | } | |
135 | ||
136 | void | |
137 | scm_mark_subr_table () | |
138 | { | |
c014a02e | 139 | long i; |
9de33deb MD |
140 | for (i = 0; i < scm_subr_table_size; ++i) |
141 | { | |
fd336365 | 142 | SCM_SETGCMARK (scm_subr_table[i].name); |
9de33deb MD |
143 | if (scm_subr_table[i].generic && *scm_subr_table[i].generic) |
144 | scm_gc_mark (*scm_subr_table[i].generic); | |
23a62df4 DH |
145 | if (SCM_NIMP (scm_subr_table[i].properties)) |
146 | scm_gc_mark (scm_subr_table[i].properties); | |
9de33deb MD |
147 | } |
148 | } | |
1cc91f1b | 149 | |
9de33deb MD |
150 | |
151 | #ifdef CCLO | |
0f2d19dd | 152 | SCM |
1be6b49c | 153 | scm_makcclo (SCM proc, size_t len) |
0f2d19dd | 154 | { |
4c9419ac MV |
155 | scm_t_bits *base = scm_gc_malloc (len * sizeof (scm_t_bits), |
156 | "compiled closure"); | |
74cc8503 | 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 | ||
16d4699b | 163 | s = scm_alloc_cell (SCM_MAKE_CCLO_TAG (len), (scm_t_bits) base); |
74cc8503 | 164 | SCM_SET_CCLO_SUBR (s, proc); |
0f2d19dd JB |
165 | return s; |
166 | } | |
d88094f9 MD |
167 | |
168 | /* Undocumented debugging procedure */ | |
169 | #ifdef GUILE_DEBUG | |
a1ec6916 | 170 | SCM_DEFINE (scm_make_cclo, "make-cclo", 2, 0, 0, |
1bbd0b84 | 171 | (SCM proc, SCM len), |
8cf97abf MG |
172 | "Create a compiled closure for @var{proc}, which reserves\n" |
173 | "@var{len} objects for its usage.") | |
1bbd0b84 | 174 | #define FUNC_NAME s_scm_make_cclo |
d88094f9 MD |
175 | { |
176 | return scm_makcclo (proc, SCM_INUM (len)); | |
177 | } | |
1bbd0b84 | 178 | #undef FUNC_NAME |
d88094f9 | 179 | #endif |
0f2d19dd JB |
180 | #endif |
181 | ||
182 | ||
183 | ||
3b3b36dd | 184 | SCM_DEFINE (scm_procedure_p, "procedure?", 1, 0, 0, |
8cf97abf MG |
185 | (SCM obj), |
186 | "Return @code{#t} if @var{obj} is a procedure.") | |
1bbd0b84 | 187 | #define FUNC_NAME s_scm_procedure_p |
0f2d19dd JB |
188 | { |
189 | if (SCM_NIMP (obj)) | |
190 | switch (SCM_TYP7 (obj)) | |
191 | { | |
904a077d | 192 | case scm_tcs_struct: |
bdc88419 MD |
193 | if (!SCM_I_OPERATORP (obj)) |
194 | break; | |
0f2d19dd | 195 | case scm_tcs_closures: |
0f2d19dd JB |
196 | case scm_tcs_subrs: |
197 | #ifdef CCLO | |
198 | case scm_tc7_cclo: | |
199 | #endif | |
b4cd6492 | 200 | case scm_tc7_pws: |
0f2d19dd | 201 | return SCM_BOOL_T; |
0717dfd8 KN |
202 | case scm_tc7_smob: |
203 | return SCM_BOOL (SCM_SMOB_DESCRIPTOR (obj).apply); | |
0f2d19dd JB |
204 | default: |
205 | return SCM_BOOL_F; | |
206 | } | |
207 | return SCM_BOOL_F; | |
208 | } | |
1bbd0b84 | 209 | #undef FUNC_NAME |
0f2d19dd | 210 | |
3b3b36dd | 211 | SCM_DEFINE (scm_closure_p, "closure?", 1, 0, 0, |
1bbd0b84 | 212 | (SCM obj), |
8cf97abf | 213 | "Return @code{#t} if @var{obj} is a closure.") |
1bbd0b84 | 214 | #define FUNC_NAME s_scm_closure_p |
ecdb5eb2 | 215 | { |
726d810a | 216 | return SCM_BOOL (SCM_CLOSUREP (obj)); |
ecdb5eb2 | 217 | } |
1bbd0b84 | 218 | #undef FUNC_NAME |
ecdb5eb2 | 219 | |
3b3b36dd | 220 | SCM_DEFINE (scm_thunk_p, "thunk?", 1, 0, 0, |
8cf97abf MG |
221 | (SCM obj), |
222 | "Return @code{#t} if @var{obj} is a thunk.") | |
1bbd0b84 | 223 | #define FUNC_NAME s_scm_thunk_p |
44bd53b9 MD |
224 | { |
225 | if (SCM_NIMP (obj)) | |
b4cd6492 MD |
226 | { |
227 | again: | |
228 | switch (SCM_TYP7 (obj)) | |
229 | { | |
230 | case scm_tcs_closures: | |
726d810a | 231 | return SCM_BOOL (!SCM_CONSP (SCM_CLOSURE_FORMALS (obj))); |
b4cd6492 MD |
232 | case scm_tc7_subr_0: |
233 | case scm_tc7_subr_1o: | |
234 | case scm_tc7_lsubr: | |
235 | case scm_tc7_rpsubr: | |
236 | case scm_tc7_asubr: | |
44bd53b9 | 237 | #ifdef CCLO |
b4cd6492 | 238 | case scm_tc7_cclo: |
44bd53b9 | 239 | #endif |
b4cd6492 MD |
240 | return SCM_BOOL_T; |
241 | case scm_tc7_pws: | |
242 | obj = SCM_PROCEDURE (obj); | |
243 | goto again; | |
244 | default: | |
245 | ; | |
246 | } | |
247 | } | |
44bd53b9 MD |
248 | return SCM_BOOL_F; |
249 | } | |
1bbd0b84 | 250 | #undef FUNC_NAME |
44bd53b9 | 251 | |
9de33deb MD |
252 | /* Only used internally. */ |
253 | int | |
254 | scm_subr_p (SCM obj) | |
255 | { | |
256 | if (SCM_NIMP (obj)) | |
257 | switch (SCM_TYP7 (obj)) | |
258 | { | |
259 | case scm_tcs_subrs: | |
260 | return 1; | |
261 | default: | |
262 | ; | |
263 | } | |
264 | return 0; | |
265 | } | |
266 | ||
3b3b36dd | 267 | SCM_DEFINE (scm_procedure_documentation, "procedure-documentation", 1, 0, 0, |
1bbd0b84 | 268 | (SCM proc), |
b380b885 MD |
269 | "Return the documentation string associated with @code{proc}. By\n" |
270 | "convention, if a procedure contains more than one expression and the\n" | |
271 | "first expression is a string constant, that string is assumed to contain\n" | |
272 | "documentation for that procedure.") | |
1bbd0b84 | 273 | #define FUNC_NAME s_scm_procedure_documentation |
c2c82fba MD |
274 | { |
275 | SCM code; | |
5f144b10 | 276 | SCM_ASSERT (SCM_EQ_P (scm_procedure_p (proc), SCM_BOOL_T) && SCM_NIMP (proc), |
9a09deb1 | 277 | proc, SCM_ARG1, FUNC_NAME); |
c2c82fba MD |
278 | switch (SCM_TYP7 (proc)) |
279 | { | |
280 | case scm_tcs_closures: | |
f9450cdb | 281 | code = SCM_CLOSURE_BODY (proc); |
c2c82fba MD |
282 | if (SCM_IMP (SCM_CDR (code))) |
283 | return SCM_BOOL_F; | |
284 | code = SCM_CAR (code); | |
285 | if (SCM_IMP (code)) | |
286 | return SCM_BOOL_F; | |
287 | if (SCM_STRINGP (code)) | |
288 | return code; | |
289 | default: | |
290 | return SCM_BOOL_F; | |
291 | /* | |
292 | case scm_tcs_subrs: | |
293 | #ifdef CCLO | |
294 | case scm_tc7_cclo: | |
295 | #endif | |
296 | */ | |
297 | } | |
298 | } | |
1bbd0b84 | 299 | #undef FUNC_NAME |
c2c82fba | 300 | |
0f2d19dd | 301 | |
b4cd6492 MD |
302 | /* Procedure-with-setter |
303 | */ | |
304 | ||
a1ec6916 | 305 | SCM_DEFINE (scm_procedure_with_setter_p, "procedure-with-setter?", 1, 0, 0, |
1bbd0b84 | 306 | (SCM obj), |
8cf97abf MG |
307 | "Return @code{#t} if @var{obj} is a procedure with an\n" |
308 | "associated setter procedure.") | |
1bbd0b84 | 309 | #define FUNC_NAME s_scm_procedure_with_setter_p |
b4cd6492 | 310 | { |
0c95b57d | 311 | return SCM_BOOL(SCM_PROCEDURE_WITH_SETTER_P (obj)); |
b4cd6492 | 312 | } |
1bbd0b84 | 313 | #undef FUNC_NAME |
b4cd6492 | 314 | |
a1ec6916 | 315 | SCM_DEFINE (scm_make_procedure_with_setter, "make-procedure-with-setter", 2, 0, 0, |
1bbd0b84 | 316 | (SCM procedure, SCM setter), |
8cf97abf MG |
317 | "Create a new procedure which behaves like @var{procedure}, but\n" |
318 | "with the associated setter @var{setter}.") | |
1bbd0b84 | 319 | #define FUNC_NAME s_scm_make_procedure_with_setter |
b4cd6492 | 320 | { |
e1f8eb2b MD |
321 | SCM_VALIDATE_PROC (1, procedure); |
322 | SCM_VALIDATE_PROC (2, setter); | |
16d4699b MV |
323 | return scm_alloc_double_cell (scm_tc7_pws, |
324 | SCM_UNPACK (procedure), | |
325 | SCM_UNPACK (setter), 0); | |
b4cd6492 | 326 | } |
1bbd0b84 | 327 | #undef FUNC_NAME |
b4cd6492 | 328 | |
a1ec6916 | 329 | SCM_DEFINE (scm_procedure, "procedure", 1, 0, 0, |
1bbd0b84 | 330 | (SCM proc), |
8cf97abf MG |
331 | "Return the procedure of @var{proc}, which must be either a\n" |
332 | "procedure with setter, or an operator struct.") | |
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); |
b038d983 | 369 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 370 | } |
1cc91f1b | 371 | |
9de33deb | 372 | |
9de33deb MD |
373 | void |
374 | scm_init_subr_table () | |
375 | { | |
376 | scm_subr_table | |
92c2555f | 377 | = ((scm_t_subr_entry *) |
4c9419ac | 378 | scm_malloc (sizeof (scm_t_subr_entry) * scm_subr_table_room)); |
9de33deb | 379 | } |
1cc91f1b | 380 | |
0f2d19dd JB |
381 | void |
382 | scm_init_procs () | |
0f2d19dd | 383 | { |
8dc9439f | 384 | #ifndef SCM_MAGIC_SNARFER |
a0599745 | 385 | #include "libguile/procs.x" |
8dc9439f | 386 | #endif |
0f2d19dd | 387 | } |
89e00824 ML |
388 | |
389 | /* | |
390 | Local Variables: | |
391 | c-file-style: "gnu" | |
392 | End: | |
393 | */ |