Commit | Line | Data |
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dbb605f5 | 1 | /* Copyright (C) 1995,1996,1997,1999,2000,2001, 2006, 2008 Free Software Foundation, Inc. |
0f2d19dd | 2 | * |
73be1d9e MV |
3 | * This library is free software; you can redistribute it and/or |
4 | * modify it under the terms of the GNU Lesser General Public | |
5 | * License as published by the Free Software Foundation; either | |
6 | * version 2.1 of the License, or (at your option) any later version. | |
0f2d19dd | 7 | * |
73be1d9e MV |
8 | * This library 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 GNU | |
11 | * Lesser General Public License for more details. | |
0f2d19dd | 12 | * |
73be1d9e MV |
13 | * You should have received a copy of the GNU Lesser General Public |
14 | * License along with this library; if not, write to the Free Software | |
92205699 | 15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
73be1d9e | 16 | */ |
1bbd0b84 | 17 | |
1bbd0b84 | 18 | |
0f2d19dd | 19 | \f |
dbb605f5 LC |
20 | #ifdef HAVE_CONFIG_H |
21 | # include <config.h> | |
22 | #endif | |
0f2d19dd | 23 | |
a0599745 | 24 | #include "libguile/_scm.h" |
0f2d19dd | 25 | |
a0599745 MD |
26 | #include "libguile/objects.h" |
27 | #include "libguile/strings.h" | |
28 | #include "libguile/vectors.h" | |
0717dfd8 | 29 | #include "libguile/smob.h" |
c88a8162 | 30 | #include "libguile/deprecation.h" |
bdc88419 | 31 | |
a0599745 MD |
32 | #include "libguile/validate.h" |
33 | #include "libguile/procs.h" | |
3fd8807e | 34 | #include "libguile/procprop.h" |
53e28ed9 | 35 | #include "libguile/objcodes.h" |
7e580328 | 36 | #include "libguile/programs.h" |
0f2d19dd JB |
37 | \f |
38 | ||
39 | ||
40 | /* {Procedures} | |
41 | */ | |
42 | ||
92c2555f | 43 | scm_t_subr_entry *scm_subr_table; |
9de33deb | 44 | |
98f9c984 | 45 | /* libguile contained approx. 700 primitive procedures on 24 Aug 1999. */ |
9de33deb | 46 | |
7c582ec9 MG |
47 | /* Increased to 800 on 2001-05-07 -- Guile now has 779 primitives on |
48 | startup, 786 with guile-readline. 'martin */ | |
49 | ||
e95d1111 LC |
50 | static unsigned long scm_subr_table_size = 0; |
51 | static unsigned long scm_subr_table_room = 800; | |
1cc91f1b | 52 | |
0f2d19dd | 53 | SCM |
c014a02e | 54 | scm_c_make_subr (const char *name, long type, SCM (*fcn) ()) |
0f2d19dd | 55 | { |
0f2d19dd | 56 | register SCM z; |
e95d1111 | 57 | unsigned long entry; |
9de33deb MD |
58 | |
59 | if (scm_subr_table_size == scm_subr_table_room) | |
60 | { | |
c014a02e | 61 | long new_size = scm_subr_table_room * 3 / 2; |
98f9c984 | 62 | void *new_table |
4c9419ac MV |
63 | = scm_realloc ((char *) scm_subr_table, |
64 | sizeof (scm_t_subr_entry) * new_size); | |
9de33deb MD |
65 | scm_subr_table = new_table; |
66 | scm_subr_table_room = new_size; | |
67 | } | |
68 | ||
9de33deb | 69 | entry = scm_subr_table_size; |
228a24ef | 70 | z = scm_cell ((entry << 8) + type, (scm_t_bits) fcn); |
9de33deb | 71 | scm_subr_table[entry].handle = z; |
cc95e00a | 72 | scm_subr_table[entry].name = scm_from_locale_symbol (name); |
9de33deb | 73 | scm_subr_table[entry].generic = 0; |
23a62df4 | 74 | scm_subr_table[entry].properties = SCM_EOL; |
9de33deb MD |
75 | scm_subr_table_size++; |
76 | ||
0f2d19dd JB |
77 | return z; |
78 | } | |
79 | ||
c88a8162 | 80 | SCM |
c014a02e | 81 | scm_c_define_subr (const char *name, long type, SCM (*fcn) ()) |
c88a8162 MV |
82 | { |
83 | SCM subr = scm_c_make_subr (name, type, fcn); | |
cce8b2ce | 84 | scm_define (SCM_SNAME (subr), subr); |
c88a8162 MV |
85 | return subr; |
86 | } | |
87 | ||
9de33deb MD |
88 | /* This function isn't currently used since subrs are never freed. */ |
89 | /* *fixme* Need mutex here. */ | |
90 | void | |
91 | scm_free_subr_entry (SCM subr) | |
92 | { | |
c014a02e | 93 | long entry = SCM_SUBRNUM (subr); |
9de33deb MD |
94 | /* Move last entry in table to the free position */ |
95 | scm_subr_table[entry] = scm_subr_table[scm_subr_table_size - 1]; | |
96 | SCM_SET_SUBRNUM (scm_subr_table[entry].handle, entry); | |
97 | scm_subr_table_size--; | |
98 | } | |
1cc91f1b | 99 | |
c88a8162 MV |
100 | SCM |
101 | scm_c_make_subr_with_generic (const char *name, | |
c014a02e | 102 | long type, SCM (*fcn) (), SCM *gf) |
0f2d19dd | 103 | { |
c88a8162 | 104 | SCM subr = scm_c_make_subr (name, type, fcn); |
feccd2d3 | 105 | SCM_SET_SUBR_GENERIC_LOC (subr, gf); |
c88a8162 | 106 | return subr; |
0f2d19dd JB |
107 | } |
108 | ||
9de33deb | 109 | SCM |
c88a8162 | 110 | scm_c_define_subr_with_generic (const char *name, |
c014a02e | 111 | long type, SCM (*fcn) (), SCM *gf) |
9de33deb | 112 | { |
c88a8162 | 113 | SCM subr = scm_c_make_subr_with_generic (name, type, fcn, gf); |
cce8b2ce | 114 | scm_define (SCM_SNAME (subr), subr); |
9de33deb MD |
115 | return subr; |
116 | } | |
117 | ||
118 | void | |
119 | scm_mark_subr_table () | |
120 | { | |
c014a02e | 121 | long i; |
9de33deb MD |
122 | for (i = 0; i < scm_subr_table_size; ++i) |
123 | { | |
eab1b259 | 124 | scm_gc_mark (scm_subr_table[i].name); |
9de33deb MD |
125 | if (scm_subr_table[i].generic && *scm_subr_table[i].generic) |
126 | scm_gc_mark (*scm_subr_table[i].generic); | |
23a62df4 DH |
127 | if (SCM_NIMP (scm_subr_table[i].properties)) |
128 | scm_gc_mark (scm_subr_table[i].properties); | |
9de33deb MD |
129 | } |
130 | } | |
1cc91f1b | 131 | |
9de33deb MD |
132 | |
133 | #ifdef CCLO | |
0f2d19dd | 134 | SCM |
1be6b49c | 135 | scm_makcclo (SCM proc, size_t len) |
0f2d19dd | 136 | { |
4c9419ac MV |
137 | scm_t_bits *base = scm_gc_malloc (len * sizeof (scm_t_bits), |
138 | "compiled closure"); | |
74cc8503 | 139 | unsigned long i; |
0f2d19dd | 140 | SCM s; |
74cc8503 DH |
141 | |
142 | for (i = 0; i < len; ++i) | |
143 | base [i] = SCM_UNPACK (SCM_UNSPECIFIED); | |
144 | ||
228a24ef | 145 | s = scm_cell (SCM_MAKE_CCLO_TAG (len), (scm_t_bits) base); |
74cc8503 | 146 | SCM_SET_CCLO_SUBR (s, proc); |
0f2d19dd JB |
147 | return s; |
148 | } | |
d88094f9 MD |
149 | |
150 | /* Undocumented debugging procedure */ | |
151 | #ifdef GUILE_DEBUG | |
a1ec6916 | 152 | SCM_DEFINE (scm_make_cclo, "make-cclo", 2, 0, 0, |
1bbd0b84 | 153 | (SCM proc, SCM len), |
8cf97abf MG |
154 | "Create a compiled closure for @var{proc}, which reserves\n" |
155 | "@var{len} objects for its usage.") | |
1bbd0b84 | 156 | #define FUNC_NAME s_scm_make_cclo |
d88094f9 | 157 | { |
e11e83f3 | 158 | return scm_makcclo (proc, scm_to_size_t (len)); |
d88094f9 | 159 | } |
1bbd0b84 | 160 | #undef FUNC_NAME |
d88094f9 | 161 | #endif |
0f2d19dd JB |
162 | #endif |
163 | ||
164 | ||
165 | ||
3b3b36dd | 166 | SCM_DEFINE (scm_procedure_p, "procedure?", 1, 0, 0, |
8cf97abf MG |
167 | (SCM obj), |
168 | "Return @code{#t} if @var{obj} is a procedure.") | |
1bbd0b84 | 169 | #define FUNC_NAME s_scm_procedure_p |
0f2d19dd JB |
170 | { |
171 | if (SCM_NIMP (obj)) | |
172 | switch (SCM_TYP7 (obj)) | |
173 | { | |
904a077d | 174 | case scm_tcs_struct: |
bdc88419 MD |
175 | if (!SCM_I_OPERATORP (obj)) |
176 | break; | |
0f2d19dd | 177 | case scm_tcs_closures: |
0f2d19dd JB |
178 | case scm_tcs_subrs: |
179 | #ifdef CCLO | |
180 | case scm_tc7_cclo: | |
181 | #endif | |
b4cd6492 | 182 | case scm_tc7_pws: |
0f2d19dd | 183 | return SCM_BOOL_T; |
0717dfd8 | 184 | case scm_tc7_smob: |
7888309b | 185 | return scm_from_bool (SCM_SMOB_DESCRIPTOR (obj).apply); |
0f2d19dd JB |
186 | default: |
187 | return SCM_BOOL_F; | |
188 | } | |
189 | return SCM_BOOL_F; | |
190 | } | |
1bbd0b84 | 191 | #undef FUNC_NAME |
0f2d19dd | 192 | |
3b3b36dd | 193 | SCM_DEFINE (scm_closure_p, "closure?", 1, 0, 0, |
1bbd0b84 | 194 | (SCM obj), |
8cf97abf | 195 | "Return @code{#t} if @var{obj} is a closure.") |
1bbd0b84 | 196 | #define FUNC_NAME s_scm_closure_p |
ecdb5eb2 | 197 | { |
7888309b | 198 | return scm_from_bool (SCM_CLOSUREP (obj)); |
ecdb5eb2 | 199 | } |
1bbd0b84 | 200 | #undef FUNC_NAME |
ecdb5eb2 | 201 | |
3b3b36dd | 202 | SCM_DEFINE (scm_thunk_p, "thunk?", 1, 0, 0, |
8cf97abf MG |
203 | (SCM obj), |
204 | "Return @code{#t} if @var{obj} is a thunk.") | |
1bbd0b84 | 205 | #define FUNC_NAME s_scm_thunk_p |
44bd53b9 MD |
206 | { |
207 | if (SCM_NIMP (obj)) | |
b4cd6492 MD |
208 | { |
209 | again: | |
210 | switch (SCM_TYP7 (obj)) | |
211 | { | |
212 | case scm_tcs_closures: | |
d2e53ed6 | 213 | return scm_from_bool (!scm_is_pair (SCM_CLOSURE_FORMALS (obj))); |
b4cd6492 MD |
214 | case scm_tc7_subr_0: |
215 | case scm_tc7_subr_1o: | |
216 | case scm_tc7_lsubr: | |
217 | case scm_tc7_rpsubr: | |
218 | case scm_tc7_asubr: | |
44bd53b9 | 219 | #ifdef CCLO |
b4cd6492 | 220 | case scm_tc7_cclo: |
44bd53b9 | 221 | #endif |
b4cd6492 MD |
222 | return SCM_BOOL_T; |
223 | case scm_tc7_pws: | |
224 | obj = SCM_PROCEDURE (obj); | |
225 | goto again; | |
226 | default: | |
7e580328 AW |
227 | if (SCM_PROGRAM_P (obj) && SCM_PROGRAM_DATA (obj)->nargs == 0) |
228 | return SCM_BOOL_T; | |
229 | /* otherwise fall through */ | |
b4cd6492 MD |
230 | } |
231 | } | |
44bd53b9 MD |
232 | return SCM_BOOL_F; |
233 | } | |
1bbd0b84 | 234 | #undef FUNC_NAME |
44bd53b9 | 235 | |
9de33deb MD |
236 | /* Only used internally. */ |
237 | int | |
238 | scm_subr_p (SCM obj) | |
239 | { | |
240 | if (SCM_NIMP (obj)) | |
241 | switch (SCM_TYP7 (obj)) | |
242 | { | |
243 | case scm_tcs_subrs: | |
244 | return 1; | |
245 | default: | |
246 | ; | |
247 | } | |
248 | return 0; | |
249 | } | |
250 | ||
3b3b36dd | 251 | SCM_DEFINE (scm_procedure_documentation, "procedure-documentation", 1, 0, 0, |
1bbd0b84 | 252 | (SCM proc), |
b380b885 MD |
253 | "Return the documentation string associated with @code{proc}. By\n" |
254 | "convention, if a procedure contains more than one expression and the\n" | |
255 | "first expression is a string constant, that string is assumed to contain\n" | |
256 | "documentation for that procedure.") | |
1bbd0b84 | 257 | #define FUNC_NAME s_scm_procedure_documentation |
c2c82fba MD |
258 | { |
259 | SCM code; | |
bc36d050 | 260 | SCM_ASSERT (scm_is_true (scm_procedure_p (proc)), |
9a09deb1 | 261 | proc, SCM_ARG1, FUNC_NAME); |
c2c82fba MD |
262 | switch (SCM_TYP7 (proc)) |
263 | { | |
264 | case scm_tcs_closures: | |
f9450cdb | 265 | code = SCM_CLOSURE_BODY (proc); |
d2e53ed6 | 266 | if (scm_is_null (SCM_CDR (code))) |
c2c82fba MD |
267 | return SCM_BOOL_F; |
268 | code = SCM_CAR (code); | |
7f9994d9 | 269 | if (scm_is_string (code)) |
c2c82fba | 270 | return code; |
5c9e7dad DH |
271 | else |
272 | return SCM_BOOL_F; | |
c2c82fba MD |
273 | default: |
274 | return SCM_BOOL_F; | |
275 | /* | |
276 | case scm_tcs_subrs: | |
277 | #ifdef CCLO | |
278 | case scm_tc7_cclo: | |
279 | #endif | |
280 | */ | |
281 | } | |
282 | } | |
1bbd0b84 | 283 | #undef FUNC_NAME |
c2c82fba | 284 | |
0f2d19dd | 285 | |
b4cd6492 MD |
286 | /* Procedure-with-setter |
287 | */ | |
288 | ||
a1ec6916 | 289 | SCM_DEFINE (scm_procedure_with_setter_p, "procedure-with-setter?", 1, 0, 0, |
1bbd0b84 | 290 | (SCM obj), |
8cf97abf MG |
291 | "Return @code{#t} if @var{obj} is a procedure with an\n" |
292 | "associated setter procedure.") | |
1bbd0b84 | 293 | #define FUNC_NAME s_scm_procedure_with_setter_p |
b4cd6492 | 294 | { |
7888309b | 295 | return scm_from_bool(SCM_PROCEDURE_WITH_SETTER_P (obj)); |
b4cd6492 | 296 | } |
1bbd0b84 | 297 | #undef FUNC_NAME |
b4cd6492 | 298 | |
a1ec6916 | 299 | SCM_DEFINE (scm_make_procedure_with_setter, "make-procedure-with-setter", 2, 0, 0, |
1bbd0b84 | 300 | (SCM procedure, SCM setter), |
8cf97abf MG |
301 | "Create a new procedure which behaves like @var{procedure}, but\n" |
302 | "with the associated setter @var{setter}.") | |
1bbd0b84 | 303 | #define FUNC_NAME s_scm_make_procedure_with_setter |
b4cd6492 | 304 | { |
3fd8807e | 305 | SCM name, ret; |
e1f8eb2b MD |
306 | SCM_VALIDATE_PROC (1, procedure); |
307 | SCM_VALIDATE_PROC (2, setter); | |
3fd8807e AW |
308 | ret = scm_double_cell (scm_tc7_pws, |
309 | SCM_UNPACK (procedure), | |
310 | SCM_UNPACK (setter), 0); | |
311 | /* don't use procedure_name, because don't care enough to do a reverse | |
312 | lookup */ | |
313 | switch (SCM_TYP7 (procedure)) { | |
314 | case scm_tcs_subrs: | |
315 | name = SCM_SNAME (procedure); | |
316 | break; | |
317 | default: | |
318 | name = scm_procedure_property (procedure, scm_sym_name); | |
319 | break; | |
320 | } | |
321 | if (scm_is_true (name)) | |
322 | scm_set_procedure_property_x (ret, scm_sym_name, name); | |
323 | return ret; | |
b4cd6492 | 324 | } |
1bbd0b84 | 325 | #undef FUNC_NAME |
b4cd6492 | 326 | |
a1ec6916 | 327 | SCM_DEFINE (scm_procedure, "procedure", 1, 0, 0, |
1bbd0b84 | 328 | (SCM proc), |
8cf97abf MG |
329 | "Return the procedure of @var{proc}, which must be either a\n" |
330 | "procedure with setter, or an operator struct.") | |
1bbd0b84 | 331 | #define FUNC_NAME s_scm_procedure |
b4cd6492 | 332 | { |
e1f8eb2b | 333 | SCM_VALIDATE_NIM (1, proc); |
b4cd6492 MD |
334 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
335 | return SCM_PROCEDURE (proc); | |
336 | else if (SCM_STRUCTP (proc)) | |
337 | { | |
1bbd0b84 | 338 | SCM_ASSERT (SCM_I_OPERATORP (proc), proc, SCM_ARG1, FUNC_NAME); |
b4cd6492 MD |
339 | return proc; |
340 | } | |
1bbd0b84 | 341 | SCM_WRONG_TYPE_ARG (1, proc); |
4260a7fc | 342 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 343 | } |
1bbd0b84 | 344 | #undef FUNC_NAME |
b4cd6492 | 345 | |
f5267231 | 346 | SCM_GPROC (s_setter, "setter", 1, 0, 0, scm_setter, g_setter); |
b4cd6492 MD |
347 | |
348 | SCM | |
349 | scm_setter (SCM proc) | |
350 | { | |
f5267231 | 351 | SCM_GASSERT1 (SCM_NIMP (proc), g_setter, proc, SCM_ARG1, s_setter); |
b4cd6492 MD |
352 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
353 | return SCM_SETTER (proc); | |
354 | else if (SCM_STRUCTP (proc)) | |
355 | { | |
c72a774a | 356 | SCM setter; |
f5267231 MD |
357 | SCM_GASSERT1 (SCM_I_OPERATORP (proc), |
358 | g_setter, proc, SCM_ARG1, s_setter); | |
c72a774a MD |
359 | setter = (SCM_I_ENTITYP (proc) |
360 | ? SCM_ENTITY_SETTER (proc) | |
361 | : SCM_OPERATOR_SETTER (proc)); | |
362 | if (SCM_NIMP (setter)) | |
363 | return setter; | |
364 | /* fall through */ | |
b4cd6492 | 365 | } |
f5267231 | 366 | SCM_WTA_DISPATCH_1 (g_setter, proc, SCM_ARG1, s_setter); |
b038d983 | 367 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 368 | } |
1cc91f1b | 369 | |
9de33deb | 370 | |
9de33deb MD |
371 | void |
372 | scm_init_subr_table () | |
373 | { | |
374 | scm_subr_table | |
92c2555f | 375 | = ((scm_t_subr_entry *) |
4c9419ac | 376 | scm_malloc (sizeof (scm_t_subr_entry) * scm_subr_table_room)); |
9de33deb | 377 | } |
1cc91f1b | 378 | |
0f2d19dd JB |
379 | void |
380 | scm_init_procs () | |
0f2d19dd | 381 | { |
a0599745 | 382 | #include "libguile/procs.x" |
0f2d19dd | 383 | } |
89e00824 ML |
384 | |
385 | /* | |
386 | Local Variables: | |
387 | c-file-style: "gnu" | |
388 | End: | |
389 | */ |