Commit | Line | Data |
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726d810a | 1 | /* Copyright (C) 1995,1996,1997,1999,2000,2001 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 | |
15 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
16 | */ | |
1bbd0b84 | 17 | |
1bbd0b84 | 18 | |
0f2d19dd JB |
19 | \f |
20 | ||
a0599745 | 21 | #include "libguile/_scm.h" |
0f2d19dd | 22 | |
a0599745 MD |
23 | #include "libguile/objects.h" |
24 | #include "libguile/strings.h" | |
25 | #include "libguile/vectors.h" | |
0717dfd8 | 26 | #include "libguile/smob.h" |
c88a8162 | 27 | #include "libguile/deprecation.h" |
bdc88419 | 28 | |
a0599745 MD |
29 | #include "libguile/validate.h" |
30 | #include "libguile/procs.h" | |
0f2d19dd JB |
31 | \f |
32 | ||
33 | ||
34 | /* {Procedures} | |
35 | */ | |
36 | ||
92c2555f | 37 | scm_t_subr_entry *scm_subr_table; |
9de33deb | 38 | |
98f9c984 | 39 | /* libguile contained approx. 700 primitive procedures on 24 Aug 1999. */ |
9de33deb | 40 | |
7c582ec9 MG |
41 | /* Increased to 800 on 2001-05-07 -- Guile now has 779 primitives on |
42 | startup, 786 with guile-readline. 'martin */ | |
43 | ||
c014a02e ML |
44 | long scm_subr_table_size = 0; |
45 | long scm_subr_table_room = 800; | |
1cc91f1b | 46 | |
0f2d19dd | 47 | SCM |
c014a02e | 48 | scm_c_make_subr (const char *name, long type, SCM (*fcn) ()) |
0f2d19dd | 49 | { |
0f2d19dd | 50 | register SCM z; |
c014a02e | 51 | long entry; |
9de33deb MD |
52 | |
53 | if (scm_subr_table_size == scm_subr_table_room) | |
54 | { | |
c014a02e | 55 | long new_size = scm_subr_table_room * 3 / 2; |
98f9c984 | 56 | void *new_table |
4c9419ac MV |
57 | = scm_realloc ((char *) scm_subr_table, |
58 | sizeof (scm_t_subr_entry) * new_size); | |
9de33deb MD |
59 | scm_subr_table = new_table; |
60 | scm_subr_table_room = new_size; | |
61 | } | |
62 | ||
9de33deb | 63 | entry = scm_subr_table_size; |
228a24ef | 64 | z = scm_cell ((entry << 8) + type, (scm_t_bits) fcn); |
9de33deb | 65 | scm_subr_table[entry].handle = z; |
cc95e00a | 66 | scm_subr_table[entry].name = scm_from_locale_symbol (name); |
9de33deb | 67 | scm_subr_table[entry].generic = 0; |
23a62df4 | 68 | scm_subr_table[entry].properties = SCM_EOL; |
9de33deb MD |
69 | scm_subr_table_size++; |
70 | ||
0f2d19dd JB |
71 | return z; |
72 | } | |
73 | ||
c88a8162 | 74 | SCM |
c014a02e | 75 | scm_c_define_subr (const char *name, long type, SCM (*fcn) ()) |
c88a8162 MV |
76 | { |
77 | SCM subr = scm_c_make_subr (name, type, fcn); | |
78 | scm_define (SCM_SUBR_ENTRY(subr).name, subr); | |
79 | return subr; | |
80 | } | |
81 | ||
9de33deb MD |
82 | /* This function isn't currently used since subrs are never freed. */ |
83 | /* *fixme* Need mutex here. */ | |
84 | void | |
85 | scm_free_subr_entry (SCM subr) | |
86 | { | |
c014a02e | 87 | long entry = SCM_SUBRNUM (subr); |
9de33deb MD |
88 | /* Move last entry in table to the free position */ |
89 | scm_subr_table[entry] = scm_subr_table[scm_subr_table_size - 1]; | |
90 | SCM_SET_SUBRNUM (scm_subr_table[entry].handle, entry); | |
91 | scm_subr_table_size--; | |
92 | } | |
1cc91f1b | 93 | |
c88a8162 MV |
94 | SCM |
95 | scm_c_make_subr_with_generic (const char *name, | |
c014a02e | 96 | long type, SCM (*fcn) (), SCM *gf) |
0f2d19dd | 97 | { |
c88a8162 MV |
98 | SCM subr = scm_c_make_subr (name, type, fcn); |
99 | SCM_SUBR_ENTRY(subr).generic = gf; | |
100 | return subr; | |
0f2d19dd JB |
101 | } |
102 | ||
9de33deb | 103 | SCM |
c88a8162 | 104 | scm_c_define_subr_with_generic (const char *name, |
c014a02e | 105 | long type, SCM (*fcn) (), SCM *gf) |
9de33deb | 106 | { |
c88a8162 MV |
107 | SCM subr = scm_c_make_subr_with_generic (name, type, fcn, gf); |
108 | scm_define (SCM_SUBR_ENTRY(subr).name, subr); | |
9de33deb MD |
109 | return subr; |
110 | } | |
111 | ||
112 | void | |
113 | scm_mark_subr_table () | |
114 | { | |
c014a02e | 115 | long i; |
9de33deb MD |
116 | for (i = 0; i < scm_subr_table_size; ++i) |
117 | { | |
eab1b259 | 118 | scm_gc_mark (scm_subr_table[i].name); |
9de33deb MD |
119 | if (scm_subr_table[i].generic && *scm_subr_table[i].generic) |
120 | scm_gc_mark (*scm_subr_table[i].generic); | |
23a62df4 DH |
121 | if (SCM_NIMP (scm_subr_table[i].properties)) |
122 | scm_gc_mark (scm_subr_table[i].properties); | |
9de33deb MD |
123 | } |
124 | } | |
1cc91f1b | 125 | |
9de33deb MD |
126 | |
127 | #ifdef CCLO | |
0f2d19dd | 128 | SCM |
1be6b49c | 129 | scm_makcclo (SCM proc, size_t len) |
0f2d19dd | 130 | { |
4c9419ac MV |
131 | scm_t_bits *base = scm_gc_malloc (len * sizeof (scm_t_bits), |
132 | "compiled closure"); | |
74cc8503 | 133 | unsigned long i; |
0f2d19dd | 134 | SCM s; |
74cc8503 DH |
135 | |
136 | for (i = 0; i < len; ++i) | |
137 | base [i] = SCM_UNPACK (SCM_UNSPECIFIED); | |
138 | ||
228a24ef | 139 | s = scm_cell (SCM_MAKE_CCLO_TAG (len), (scm_t_bits) base); |
74cc8503 | 140 | SCM_SET_CCLO_SUBR (s, proc); |
0f2d19dd JB |
141 | return s; |
142 | } | |
d88094f9 MD |
143 | |
144 | /* Undocumented debugging procedure */ | |
145 | #ifdef GUILE_DEBUG | |
a1ec6916 | 146 | SCM_DEFINE (scm_make_cclo, "make-cclo", 2, 0, 0, |
1bbd0b84 | 147 | (SCM proc, SCM len), |
8cf97abf MG |
148 | "Create a compiled closure for @var{proc}, which reserves\n" |
149 | "@var{len} objects for its usage.") | |
1bbd0b84 | 150 | #define FUNC_NAME s_scm_make_cclo |
d88094f9 | 151 | { |
e11e83f3 | 152 | return scm_makcclo (proc, scm_to_size_t (len)); |
d88094f9 | 153 | } |
1bbd0b84 | 154 | #undef FUNC_NAME |
d88094f9 | 155 | #endif |
0f2d19dd JB |
156 | #endif |
157 | ||
158 | ||
159 | ||
3b3b36dd | 160 | SCM_DEFINE (scm_procedure_p, "procedure?", 1, 0, 0, |
8cf97abf MG |
161 | (SCM obj), |
162 | "Return @code{#t} if @var{obj} is a procedure.") | |
1bbd0b84 | 163 | #define FUNC_NAME s_scm_procedure_p |
0f2d19dd JB |
164 | { |
165 | if (SCM_NIMP (obj)) | |
166 | switch (SCM_TYP7 (obj)) | |
167 | { | |
904a077d | 168 | case scm_tcs_struct: |
bdc88419 MD |
169 | if (!SCM_I_OPERATORP (obj)) |
170 | break; | |
0f2d19dd | 171 | case scm_tcs_closures: |
0f2d19dd JB |
172 | case scm_tcs_subrs: |
173 | #ifdef CCLO | |
174 | case scm_tc7_cclo: | |
175 | #endif | |
b4cd6492 | 176 | case scm_tc7_pws: |
0f2d19dd | 177 | return SCM_BOOL_T; |
0717dfd8 | 178 | case scm_tc7_smob: |
7888309b | 179 | return scm_from_bool (SCM_SMOB_DESCRIPTOR (obj).apply); |
0f2d19dd JB |
180 | default: |
181 | return SCM_BOOL_F; | |
182 | } | |
183 | return SCM_BOOL_F; | |
184 | } | |
1bbd0b84 | 185 | #undef FUNC_NAME |
0f2d19dd | 186 | |
3b3b36dd | 187 | SCM_DEFINE (scm_closure_p, "closure?", 1, 0, 0, |
1bbd0b84 | 188 | (SCM obj), |
8cf97abf | 189 | "Return @code{#t} if @var{obj} is a closure.") |
1bbd0b84 | 190 | #define FUNC_NAME s_scm_closure_p |
ecdb5eb2 | 191 | { |
7888309b | 192 | return scm_from_bool (SCM_CLOSUREP (obj)); |
ecdb5eb2 | 193 | } |
1bbd0b84 | 194 | #undef FUNC_NAME |
ecdb5eb2 | 195 | |
3b3b36dd | 196 | SCM_DEFINE (scm_thunk_p, "thunk?", 1, 0, 0, |
8cf97abf MG |
197 | (SCM obj), |
198 | "Return @code{#t} if @var{obj} is a thunk.") | |
1bbd0b84 | 199 | #define FUNC_NAME s_scm_thunk_p |
44bd53b9 MD |
200 | { |
201 | if (SCM_NIMP (obj)) | |
b4cd6492 MD |
202 | { |
203 | again: | |
204 | switch (SCM_TYP7 (obj)) | |
205 | { | |
206 | case scm_tcs_closures: | |
d2e53ed6 | 207 | return scm_from_bool (!scm_is_pair (SCM_CLOSURE_FORMALS (obj))); |
b4cd6492 MD |
208 | case scm_tc7_subr_0: |
209 | case scm_tc7_subr_1o: | |
210 | case scm_tc7_lsubr: | |
211 | case scm_tc7_rpsubr: | |
212 | case scm_tc7_asubr: | |
44bd53b9 | 213 | #ifdef CCLO |
b4cd6492 | 214 | case scm_tc7_cclo: |
44bd53b9 | 215 | #endif |
b4cd6492 MD |
216 | return SCM_BOOL_T; |
217 | case scm_tc7_pws: | |
218 | obj = SCM_PROCEDURE (obj); | |
219 | goto again; | |
220 | default: | |
221 | ; | |
222 | } | |
223 | } | |
44bd53b9 MD |
224 | return SCM_BOOL_F; |
225 | } | |
1bbd0b84 | 226 | #undef FUNC_NAME |
44bd53b9 | 227 | |
9de33deb MD |
228 | /* Only used internally. */ |
229 | int | |
230 | scm_subr_p (SCM obj) | |
231 | { | |
232 | if (SCM_NIMP (obj)) | |
233 | switch (SCM_TYP7 (obj)) | |
234 | { | |
235 | case scm_tcs_subrs: | |
236 | return 1; | |
237 | default: | |
238 | ; | |
239 | } | |
240 | return 0; | |
241 | } | |
242 | ||
3b3b36dd | 243 | SCM_DEFINE (scm_procedure_documentation, "procedure-documentation", 1, 0, 0, |
1bbd0b84 | 244 | (SCM proc), |
b380b885 MD |
245 | "Return the documentation string associated with @code{proc}. By\n" |
246 | "convention, if a procedure contains more than one expression and the\n" | |
247 | "first expression is a string constant, that string is assumed to contain\n" | |
248 | "documentation for that procedure.") | |
1bbd0b84 | 249 | #define FUNC_NAME s_scm_procedure_documentation |
c2c82fba MD |
250 | { |
251 | SCM code; | |
bc36d050 | 252 | SCM_ASSERT (scm_is_true (scm_procedure_p (proc)), |
9a09deb1 | 253 | proc, SCM_ARG1, FUNC_NAME); |
c2c82fba MD |
254 | switch (SCM_TYP7 (proc)) |
255 | { | |
256 | case scm_tcs_closures: | |
f9450cdb | 257 | code = SCM_CLOSURE_BODY (proc); |
d2e53ed6 | 258 | if (scm_is_null (SCM_CDR (code))) |
c2c82fba MD |
259 | return SCM_BOOL_F; |
260 | code = SCM_CAR (code); | |
7f9994d9 | 261 | if (scm_is_string (code)) |
c2c82fba | 262 | return code; |
5c9e7dad DH |
263 | else |
264 | return SCM_BOOL_F; | |
c2c82fba MD |
265 | default: |
266 | return SCM_BOOL_F; | |
267 | /* | |
268 | case scm_tcs_subrs: | |
269 | #ifdef CCLO | |
270 | case scm_tc7_cclo: | |
271 | #endif | |
272 | */ | |
273 | } | |
274 | } | |
1bbd0b84 | 275 | #undef FUNC_NAME |
c2c82fba | 276 | |
0f2d19dd | 277 | |
b4cd6492 MD |
278 | /* Procedure-with-setter |
279 | */ | |
280 | ||
a1ec6916 | 281 | SCM_DEFINE (scm_procedure_with_setter_p, "procedure-with-setter?", 1, 0, 0, |
1bbd0b84 | 282 | (SCM obj), |
8cf97abf MG |
283 | "Return @code{#t} if @var{obj} is a procedure with an\n" |
284 | "associated setter procedure.") | |
1bbd0b84 | 285 | #define FUNC_NAME s_scm_procedure_with_setter_p |
b4cd6492 | 286 | { |
7888309b | 287 | return scm_from_bool(SCM_PROCEDURE_WITH_SETTER_P (obj)); |
b4cd6492 | 288 | } |
1bbd0b84 | 289 | #undef FUNC_NAME |
b4cd6492 | 290 | |
a1ec6916 | 291 | SCM_DEFINE (scm_make_procedure_with_setter, "make-procedure-with-setter", 2, 0, 0, |
1bbd0b84 | 292 | (SCM procedure, SCM setter), |
8cf97abf MG |
293 | "Create a new procedure which behaves like @var{procedure}, but\n" |
294 | "with the associated setter @var{setter}.") | |
1bbd0b84 | 295 | #define FUNC_NAME s_scm_make_procedure_with_setter |
b4cd6492 | 296 | { |
e1f8eb2b MD |
297 | SCM_VALIDATE_PROC (1, procedure); |
298 | SCM_VALIDATE_PROC (2, setter); | |
228a24ef DH |
299 | return scm_double_cell (scm_tc7_pws, |
300 | SCM_UNPACK (procedure), | |
301 | SCM_UNPACK (setter), 0); | |
b4cd6492 | 302 | } |
1bbd0b84 | 303 | #undef FUNC_NAME |
b4cd6492 | 304 | |
a1ec6916 | 305 | SCM_DEFINE (scm_procedure, "procedure", 1, 0, 0, |
1bbd0b84 | 306 | (SCM proc), |
8cf97abf MG |
307 | "Return the procedure of @var{proc}, which must be either a\n" |
308 | "procedure with setter, or an operator struct.") | |
1bbd0b84 | 309 | #define FUNC_NAME s_scm_procedure |
b4cd6492 | 310 | { |
e1f8eb2b | 311 | SCM_VALIDATE_NIM (1, proc); |
b4cd6492 MD |
312 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
313 | return SCM_PROCEDURE (proc); | |
314 | else if (SCM_STRUCTP (proc)) | |
315 | { | |
1bbd0b84 | 316 | SCM_ASSERT (SCM_I_OPERATORP (proc), proc, SCM_ARG1, FUNC_NAME); |
b4cd6492 MD |
317 | return proc; |
318 | } | |
1bbd0b84 | 319 | SCM_WRONG_TYPE_ARG (1, proc); |
4260a7fc | 320 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 321 | } |
1bbd0b84 | 322 | #undef FUNC_NAME |
b4cd6492 | 323 | |
f5267231 | 324 | SCM_GPROC (s_setter, "setter", 1, 0, 0, scm_setter, g_setter); |
b4cd6492 MD |
325 | |
326 | SCM | |
327 | scm_setter (SCM proc) | |
328 | { | |
f5267231 | 329 | SCM_GASSERT1 (SCM_NIMP (proc), g_setter, proc, SCM_ARG1, s_setter); |
b4cd6492 MD |
330 | if (SCM_PROCEDURE_WITH_SETTER_P (proc)) |
331 | return SCM_SETTER (proc); | |
332 | else if (SCM_STRUCTP (proc)) | |
333 | { | |
c72a774a | 334 | SCM setter; |
f5267231 MD |
335 | SCM_GASSERT1 (SCM_I_OPERATORP (proc), |
336 | g_setter, proc, SCM_ARG1, s_setter); | |
c72a774a MD |
337 | setter = (SCM_I_ENTITYP (proc) |
338 | ? SCM_ENTITY_SETTER (proc) | |
339 | : SCM_OPERATOR_SETTER (proc)); | |
340 | if (SCM_NIMP (setter)) | |
341 | return setter; | |
342 | /* fall through */ | |
b4cd6492 | 343 | } |
f5267231 | 344 | SCM_WTA_DISPATCH_1 (g_setter, proc, SCM_ARG1, s_setter); |
b038d983 | 345 | return SCM_BOOL_F; /* not reached */ |
b4cd6492 | 346 | } |
1cc91f1b | 347 | |
9de33deb | 348 | |
9de33deb MD |
349 | void |
350 | scm_init_subr_table () | |
351 | { | |
352 | scm_subr_table | |
92c2555f | 353 | = ((scm_t_subr_entry *) |
4c9419ac | 354 | scm_malloc (sizeof (scm_t_subr_entry) * scm_subr_table_room)); |
9de33deb | 355 | } |
1cc91f1b | 356 | |
0f2d19dd JB |
357 | void |
358 | scm_init_procs () | |
0f2d19dd | 359 | { |
a0599745 | 360 | #include "libguile/procs.x" |
0f2d19dd | 361 | } |
89e00824 ML |
362 | |
363 | /* | |
364 | Local Variables: | |
365 | c-file-style: "gnu" | |
366 | End: | |
367 | */ |