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16d35552 | 1 | /* Copyright (C) 1995, 1996, 1998, 1999, 2000 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> | |
a0599745 | 48 | #include "libguile/_scm.h" |
20e6290e | 49 | |
a0599745 MD |
50 | #include "libguile/objects.h" |
51 | #include "libguile/ports.h" | |
d7ec6b9f | 52 | |
0f2d19dd JB |
53 | #ifdef HAVE_MALLOC_H |
54 | #include <malloc.h> | |
55 | #endif | |
56 | ||
a0599745 | 57 | #include "libguile/smob.h" |
9dd5943c | 58 | |
0f2d19dd JB |
59 | \f |
60 | ||
61 | /* scm_smobs scm_numsmob | |
62 | * implement a dynamicly resized array of smob records. | |
63 | * Indexes into this table are used when generating type | |
64 | * tags for smobjects (if you know a tag you can get an index and conversely). | |
65 | */ | |
4e6e2119 | 66 | int scm_numsmob; |
9dd5943c | 67 | scm_smob_descriptor *scm_smobs; |
0f2d19dd | 68 | |
9dd5943c MD |
69 | /* {Mark} |
70 | */ | |
71 | ||
72 | /* This function is vestigial. It used to be the mark function's | |
73 | responsibility to set the mark bit on the smob or port, but now the | |
74 | generic marking routine in gc.c takes care of that, and a zero | |
75 | pointer for a mark function means "don't bother". So you never | |
76 | need scm_mark0. | |
77 | ||
78 | However, we leave it here because it's harmless to call it, and | |
79 | people out there have smob code that uses it, and there's no reason | |
80 | to make their links fail. */ | |
81 | ||
82 | SCM | |
6e8d25a6 | 83 | scm_mark0 (SCM ptr) |
9dd5943c MD |
84 | { |
85 | return SCM_BOOL_F; | |
86 | } | |
87 | ||
88 | SCM | |
6e8d25a6 | 89 | scm_markcdr (SCM ptr) |
9dd5943c MD |
90 | { |
91 | return SCM_CDR (ptr); | |
92 | } | |
93 | ||
94 | /* {Free} | |
95 | */ | |
96 | ||
97 | scm_sizet | |
6e8d25a6 | 98 | scm_free0 (SCM ptr) |
9dd5943c MD |
99 | { |
100 | return 0; | |
101 | } | |
102 | ||
103 | scm_sizet | |
104 | scm_smob_free (SCM obj) | |
105 | { | |
54778cd3 | 106 | scm_must_free ((char *) SCM_CELL_WORD_1 (obj)); |
9dd5943c MD |
107 | return scm_smobs[SCM_SMOBNUM (obj)].size; |
108 | } | |
109 | ||
110 | /* {Print} | |
111 | */ | |
112 | ||
113 | int | |
114 | scm_smob_print (SCM exp, SCM port, scm_print_state *pstate) | |
115 | { | |
116 | int n = SCM_SMOBNUM (exp); | |
117 | scm_puts ("#<", port); | |
2c16a78a | 118 | scm_puts (SCM_SMOBNAME (n) ? SCM_SMOBNAME (n) : "smob", port); |
9dd5943c | 119 | scm_putc (' ', port); |
f1267706 | 120 | scm_intprint (SCM_UNPACK (scm_smobs[n].size ? SCM_CDR (exp) : exp), 16, port); |
9dd5943c MD |
121 | scm_putc ('>', port); |
122 | return 1; | |
123 | } | |
1cc91f1b | 124 | |
0717dfd8 KN |
125 | /* {Apply} |
126 | */ | |
127 | ||
cb1c46c5 KN |
128 | #define SCM_SMOB_APPLY0(SMOB) \ |
129 | SCM_SMOB_DESCRIPTOR (SMOB).apply (SMOB) | |
130 | #define SCM_SMOB_APPLY1(SMOB,A1) \ | |
131 | SCM_SMOB_DESCRIPTOR (SMOB).apply (SMOB, A1) | |
132 | #define SCM_SMOB_APPLY2(SMOB,A1,A2) \ | |
133 | SCM_SMOB_DESCRIPTOR (SMOB).apply (SMOB, A1, A2) | |
134 | #define SCM_SMOB_APPLY3(SMOB,A1,A2,A3) \ | |
135 | SCM_SMOB_DESCRIPTOR (SMOB).apply (SMOB, A1, A2, A3) | |
136 | ||
137 | static SCM | |
138 | scm_smob_apply_0_000 (SCM smob) | |
139 | { | |
140 | return SCM_SMOB_APPLY0 (smob); | |
141 | } | |
29a34ff6 | 142 | |
cb1c46c5 KN |
143 | static SCM |
144 | scm_smob_apply_0_010 (SCM smob) | |
0717dfd8 | 145 | { |
cb1c46c5 | 146 | return SCM_SMOB_APPLY1 (smob, SCM_UNDEFINED); |
0717dfd8 KN |
147 | } |
148 | ||
cb1c46c5 KN |
149 | static SCM |
150 | scm_smob_apply_0_020 (SCM smob) | |
0717dfd8 | 151 | { |
cb1c46c5 | 152 | return SCM_SMOB_APPLY2 (smob, SCM_UNDEFINED, SCM_UNDEFINED); |
0717dfd8 KN |
153 | } |
154 | ||
cb1c46c5 KN |
155 | static SCM |
156 | scm_smob_apply_0_030 (SCM smob) | |
0717dfd8 | 157 | { |
cb1c46c5 | 158 | return SCM_SMOB_APPLY3 (smob, SCM_UNDEFINED, SCM_UNDEFINED, SCM_UNDEFINED); |
0717dfd8 KN |
159 | } |
160 | ||
cb1c46c5 KN |
161 | static SCM |
162 | scm_smob_apply_0_001 (SCM smob) | |
0717dfd8 | 163 | { |
cb1c46c5 KN |
164 | return SCM_SMOB_APPLY1 (smob, SCM_EOL); |
165 | } | |
166 | ||
167 | static SCM | |
168 | scm_smob_apply_0_011 (SCM smob) | |
169 | { | |
170 | return SCM_SMOB_APPLY2 (smob, SCM_UNDEFINED, SCM_EOL); | |
171 | } | |
172 | ||
173 | static SCM | |
174 | scm_smob_apply_0_021 (SCM smob) | |
175 | { | |
176 | return SCM_SMOB_APPLY3 (smob, SCM_UNDEFINED, SCM_UNDEFINED, SCM_EOL); | |
177 | } | |
178 | ||
179 | static SCM | |
180 | scm_smob_apply_0_error (SCM smob) | |
181 | { | |
182 | scm_wrong_num_args (smob); | |
183 | } | |
184 | ||
185 | static SCM | |
186 | scm_smob_apply_1_010 (SCM smob, SCM a1) | |
187 | { | |
188 | return SCM_SMOB_APPLY1 (smob, a1); | |
189 | } | |
190 | ||
191 | static SCM | |
192 | scm_smob_apply_1_020 (SCM smob, SCM a1) | |
193 | { | |
194 | return SCM_SMOB_APPLY2 (smob, a1, SCM_UNDEFINED); | |
195 | } | |
196 | ||
197 | static SCM | |
198 | scm_smob_apply_1_030 (SCM smob, SCM a1) | |
199 | { | |
200 | return SCM_SMOB_APPLY3 (smob, a1, SCM_UNDEFINED, SCM_UNDEFINED); | |
201 | } | |
202 | ||
203 | static SCM | |
204 | scm_smob_apply_1_001 (SCM smob, SCM a1) | |
205 | { | |
206 | return SCM_SMOB_APPLY1 (smob, SCM_LIST1 (a1)); | |
207 | } | |
208 | ||
209 | static SCM | |
210 | scm_smob_apply_1_011 (SCM smob, SCM a1) | |
211 | { | |
212 | return SCM_SMOB_APPLY2 (smob, a1, SCM_EOL); | |
213 | } | |
214 | ||
215 | static SCM | |
216 | scm_smob_apply_1_021 (SCM smob, SCM a1) | |
217 | { | |
218 | return SCM_SMOB_APPLY3 (smob, a1, SCM_UNDEFINED, SCM_EOL); | |
219 | } | |
220 | ||
221 | static SCM | |
222 | scm_smob_apply_1_error (SCM smob, SCM a1) | |
223 | { | |
224 | scm_wrong_num_args (smob); | |
225 | } | |
226 | ||
227 | static SCM | |
228 | scm_smob_apply_2_020 (SCM smob, SCM a1, SCM a2) | |
229 | { | |
230 | return SCM_SMOB_APPLY2 (smob, a1, a2); | |
231 | } | |
232 | ||
233 | static SCM | |
234 | scm_smob_apply_2_030 (SCM smob, SCM a1, SCM a2) | |
235 | { | |
236 | return SCM_SMOB_APPLY3 (smob, a1, a2, SCM_UNDEFINED); | |
237 | } | |
238 | ||
239 | static SCM | |
240 | scm_smob_apply_2_001 (SCM smob, SCM a1, SCM a2) | |
241 | { | |
242 | return SCM_SMOB_APPLY1 (smob, SCM_LIST2 (a1, a2)); | |
0717dfd8 | 243 | } |
cb1c46c5 KN |
244 | |
245 | static SCM | |
246 | scm_smob_apply_2_011 (SCM smob, SCM a1, SCM a2) | |
247 | { | |
248 | return SCM_SMOB_APPLY2 (smob, a1, SCM_LIST1 (a2)); | |
249 | } | |
250 | ||
251 | static SCM | |
252 | scm_smob_apply_2_021 (SCM smob, SCM a1, SCM a2) | |
253 | { | |
254 | return SCM_SMOB_APPLY3 (smob, a1, a2, SCM_EOL); | |
255 | } | |
256 | ||
257 | static SCM | |
258 | scm_smob_apply_2_error (SCM smob, SCM a1, SCM a2) | |
259 | { | |
260 | scm_wrong_num_args (smob); | |
261 | } | |
262 | ||
263 | static SCM | |
264 | scm_smob_apply_3_030 (SCM smob, SCM a1, SCM a2, SCM rst) | |
265 | { | |
266 | if (!SCM_NULLP (SCM_CDR (rst))) | |
267 | scm_wrong_num_args (smob); | |
268 | return SCM_SMOB_APPLY3 (smob, a1, a2, SCM_CAR (rst)); | |
269 | } | |
270 | ||
271 | static SCM | |
272 | scm_smob_apply_3_001 (SCM smob, SCM a1, SCM a2, SCM rst) | |
273 | { | |
274 | return SCM_SMOB_APPLY1 (smob, scm_cons2 (a1, a2, rst)); | |
0717dfd8 KN |
275 | } |
276 | ||
cb1c46c5 KN |
277 | static SCM |
278 | scm_smob_apply_3_011 (SCM smob, SCM a1, SCM a2, SCM rst) | |
279 | { | |
280 | return SCM_SMOB_APPLY2 (smob, a1, scm_cons (a2, rst)); | |
281 | } | |
282 | ||
283 | static SCM | |
284 | scm_smob_apply_3_021 (SCM smob, SCM a1, SCM a2, SCM rst) | |
285 | { | |
286 | return SCM_SMOB_APPLY3 (smob, a1, a2, rst); | |
287 | } | |
288 | ||
289 | static SCM | |
290 | scm_smob_apply_3_error (SCM smob, SCM a1, SCM a2, SCM rst) | |
291 | { | |
292 | scm_wrong_num_args (smob); | |
293 | } | |
294 | ||
295 | \f | |
0f2d19dd | 296 | long |
9dd5943c | 297 | scm_make_smob_type (char *name, scm_sizet size) |
0f2d19dd JB |
298 | { |
299 | char *tmp; | |
300 | if (255 <= scm_numsmob) | |
301 | goto smoberr; | |
302 | SCM_DEFER_INTS; | |
9dd5943c MD |
303 | SCM_SYSCALL (tmp = (char *) realloc ((char *) scm_smobs, |
304 | (1 + scm_numsmob) | |
305 | * sizeof (scm_smob_descriptor))); | |
0f2d19dd JB |
306 | if (tmp) |
307 | { | |
9dd5943c MD |
308 | scm_smobs = (scm_smob_descriptor *) tmp; |
309 | scm_smobs[scm_numsmob].name = name; | |
310 | scm_smobs[scm_numsmob].size = size; | |
311 | scm_smobs[scm_numsmob].mark = 0; | |
312 | scm_smobs[scm_numsmob].free = (size == 0 ? scm_free0 : scm_smob_free); | |
313 | scm_smobs[scm_numsmob].print = scm_smob_print; | |
314 | scm_smobs[scm_numsmob].equalp = 0; | |
0717dfd8 | 315 | scm_smobs[scm_numsmob].apply = 0; |
cb1c46c5 KN |
316 | scm_smobs[scm_numsmob].apply_0 = 0; |
317 | scm_smobs[scm_numsmob].apply_1 = 0; | |
318 | scm_smobs[scm_numsmob].apply_2 = 0; | |
319 | scm_smobs[scm_numsmob].apply_3 = 0; | |
0f2d19dd JB |
320 | scm_numsmob++; |
321 | } | |
322 | SCM_ALLOW_INTS; | |
2500356c DH |
323 | if (!tmp) |
324 | { | |
325 | smoberr: | |
326 | scm_memory_error ("scm_make_smob_type"); | |
327 | } | |
d7ec6b9f MD |
328 | /* Make a class object if Goops is present. */ |
329 | if (scm_smob_class) | |
330 | scm_smob_class[scm_numsmob - 1] | |
331 | = scm_make_extended_class (SCM_SMOBNAME (scm_numsmob - 1)); | |
0f2d19dd JB |
332 | return scm_tc7_smob + (scm_numsmob - 1) * 256; |
333 | } | |
334 | ||
23a62151 MD |
335 | long |
336 | scm_make_smob_type_mfpe (char *name, scm_sizet size, | |
337 | SCM (*mark) (SCM), | |
338 | scm_sizet (*free) (SCM), | |
339 | int (*print) (SCM, SCM, scm_print_state *), | |
340 | SCM (*equalp) (SCM, SCM)) | |
341 | { | |
342 | long answer = scm_make_smob_type (name, size); | |
343 | scm_set_smob_mfpe (answer, mark, free, print, equalp); | |
344 | return answer; | |
345 | } | |
346 | ||
9dd5943c MD |
347 | void |
348 | scm_set_smob_mark (long tc, SCM (*mark) (SCM)) | |
349 | { | |
350 | scm_smobs[SCM_TC2SMOBNUM (tc)].mark = mark; | |
351 | } | |
352 | ||
353 | void | |
354 | scm_set_smob_free (long tc, scm_sizet (*free) (SCM)) | |
355 | { | |
356 | scm_smobs[SCM_TC2SMOBNUM (tc)].free = free; | |
357 | } | |
358 | ||
359 | void | |
360 | scm_set_smob_print (long tc, int (*print) (SCM, SCM, scm_print_state*)) | |
361 | { | |
362 | scm_smobs[SCM_TC2SMOBNUM (tc)].print = print; | |
363 | } | |
364 | ||
365 | void | |
366 | scm_set_smob_equalp (long tc, SCM (*equalp) (SCM, SCM)) | |
367 | { | |
368 | scm_smobs[SCM_TC2SMOBNUM (tc)].equalp = equalp; | |
369 | } | |
370 | ||
0717dfd8 KN |
371 | void |
372 | scm_set_smob_apply (long tc, SCM (*apply) (), int req, int opt, int rst) | |
373 | { | |
cb1c46c5 KN |
374 | SCM (*apply_0) (SCM); |
375 | SCM (*apply_1) (SCM, SCM); | |
376 | SCM (*apply_2) (SCM, SCM, SCM); | |
377 | SCM (*apply_3) (SCM, SCM, SCM, SCM); | |
378 | int type = SCM_GSUBR_MAKTYPE (req, opt, rst); | |
379 | ||
380 | if (!(req >= 0 && opt >= 0 && (rst == 0 || rst == 1) | |
381 | && req + opt + rst <= 3)) | |
382 | { | |
383 | puts ("Unsupported smob application type"); | |
384 | abort (); | |
385 | } | |
386 | ||
387 | switch (type) | |
388 | { | |
389 | case SCM_GSUBR_MAKTYPE (0, 0, 0): | |
390 | apply_0 = scm_smob_apply_0_000; break; | |
391 | case SCM_GSUBR_MAKTYPE (0, 1, 0): | |
392 | apply_0 = scm_smob_apply_0_010; break; | |
393 | case SCM_GSUBR_MAKTYPE (0, 2, 0): | |
394 | apply_0 = scm_smob_apply_0_020; break; | |
395 | case SCM_GSUBR_MAKTYPE (0, 3, 0): | |
396 | apply_0 = scm_smob_apply_0_030; break; | |
397 | case SCM_GSUBR_MAKTYPE (0, 0, 1): | |
398 | apply_0 = scm_smob_apply_0_001; break; | |
399 | case SCM_GSUBR_MAKTYPE (0, 1, 1): | |
400 | apply_0 = scm_smob_apply_0_011; break; | |
401 | case SCM_GSUBR_MAKTYPE (0, 2, 1): | |
402 | apply_0 = scm_smob_apply_0_021; break; | |
403 | default: | |
404 | apply_0 = scm_smob_apply_0_error; break; | |
405 | } | |
406 | ||
407 | switch (type) | |
408 | { | |
409 | case SCM_GSUBR_MAKTYPE (1, 0, 0): | |
410 | case SCM_GSUBR_MAKTYPE (0, 1, 0): | |
411 | apply_1 = scm_smob_apply_1_010; break; | |
412 | case SCM_GSUBR_MAKTYPE (1, 1, 0): | |
413 | case SCM_GSUBR_MAKTYPE (0, 2, 0): | |
414 | apply_1 = scm_smob_apply_1_020; break; | |
415 | case SCM_GSUBR_MAKTYPE (1, 2, 0): | |
416 | case SCM_GSUBR_MAKTYPE (0, 3, 0): | |
417 | apply_1 = scm_smob_apply_1_030; break; | |
418 | case SCM_GSUBR_MAKTYPE (0, 0, 1): | |
419 | apply_1 = scm_smob_apply_1_001; break; | |
420 | case SCM_GSUBR_MAKTYPE (1, 0, 1): | |
421 | case SCM_GSUBR_MAKTYPE (0, 1, 1): | |
422 | apply_1 = scm_smob_apply_1_011; break; | |
423 | case SCM_GSUBR_MAKTYPE (1, 1, 1): | |
424 | case SCM_GSUBR_MAKTYPE (0, 2, 1): | |
425 | apply_1 = scm_smob_apply_1_021; break; | |
426 | default: | |
427 | apply_1 = scm_smob_apply_1_error; break; | |
428 | } | |
429 | ||
430 | switch (type) | |
431 | { | |
432 | case SCM_GSUBR_MAKTYPE (2, 0, 0): | |
433 | case SCM_GSUBR_MAKTYPE (1, 1, 0): | |
434 | case SCM_GSUBR_MAKTYPE (0, 2, 0): | |
435 | apply_2 = scm_smob_apply_2_020; break; | |
436 | case SCM_GSUBR_MAKTYPE (2, 1, 0): | |
437 | case SCM_GSUBR_MAKTYPE (1, 2, 0): | |
438 | case SCM_GSUBR_MAKTYPE (0, 3, 0): | |
439 | apply_2 = scm_smob_apply_2_030; break; | |
440 | case SCM_GSUBR_MAKTYPE (0, 0, 1): | |
441 | apply_2 = scm_smob_apply_2_001; break; | |
442 | case SCM_GSUBR_MAKTYPE (1, 0, 1): | |
443 | case SCM_GSUBR_MAKTYPE (0, 1, 1): | |
444 | apply_2 = scm_smob_apply_2_011; break; | |
445 | case SCM_GSUBR_MAKTYPE (2, 0, 1): | |
446 | case SCM_GSUBR_MAKTYPE (1, 1, 1): | |
447 | case SCM_GSUBR_MAKTYPE (0, 2, 1): | |
448 | apply_2 = scm_smob_apply_2_021; break; | |
449 | default: | |
450 | apply_2 = scm_smob_apply_2_error; break; | |
451 | } | |
452 | ||
453 | switch (type) | |
454 | { | |
455 | case SCM_GSUBR_MAKTYPE (3, 0, 0): | |
456 | case SCM_GSUBR_MAKTYPE (2, 1, 0): | |
457 | case SCM_GSUBR_MAKTYPE (1, 2, 0): | |
458 | case SCM_GSUBR_MAKTYPE (0, 3, 0): | |
459 | apply_3 = scm_smob_apply_3_030; break; | |
460 | case SCM_GSUBR_MAKTYPE (0, 0, 1): | |
461 | apply_3 = scm_smob_apply_3_001; break; | |
462 | case SCM_GSUBR_MAKTYPE (1, 0, 1): | |
463 | case SCM_GSUBR_MAKTYPE (0, 1, 1): | |
464 | apply_3 = scm_smob_apply_3_011; break; | |
465 | case SCM_GSUBR_MAKTYPE (2, 0, 1): | |
466 | case SCM_GSUBR_MAKTYPE (1, 1, 1): | |
467 | case SCM_GSUBR_MAKTYPE (0, 2, 1): | |
468 | apply_3 = scm_smob_apply_3_021; break; | |
469 | default: | |
470 | apply_3 = scm_smob_apply_3_error; break; | |
471 | } | |
472 | ||
473 | scm_smobs[SCM_TC2SMOBNUM (tc)].gsubr_type = type; /* Used in procprop.c */ | |
0717dfd8 | 474 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply = apply; |
cb1c46c5 KN |
475 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply_0 = apply_0; |
476 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply_1 = apply_1; | |
477 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply_2 = apply_2; | |
478 | scm_smobs[SCM_TC2SMOBNUM (tc)].apply_3 = apply_3; | |
0717dfd8 KN |
479 | } |
480 | ||
23a62151 MD |
481 | void |
482 | scm_set_smob_mfpe (long tc, | |
483 | SCM (*mark) (SCM), | |
484 | scm_sizet (*free) (SCM), | |
485 | int (*print) (SCM, SCM, scm_print_state *), | |
486 | SCM (*equalp) (SCM, SCM)) | |
487 | { | |
488 | if (mark) scm_set_smob_mark (tc, mark); | |
489 | if (free) scm_set_smob_free (tc, free); | |
490 | if (print) scm_set_smob_print (tc, print); | |
491 | if (equalp) scm_set_smob_equalp (tc, equalp); | |
492 | } | |
493 | ||
f5f2dcff | 494 | |
9dd5943c MD |
495 | SCM |
496 | scm_make_smob (long tc) | |
497 | { | |
498 | int n = SCM_TC2SMOBNUM (tc); | |
499 | scm_sizet size = scm_smobs[n].size; | |
500 | SCM z; | |
501 | SCM_NEWCELL (z); | |
502 | if (size != 0) | |
503 | { | |
504 | #if 0 | |
505 | SCM_ASSERT (scm_smobs[n].mark == 0, | |
506 | 0, | |
507 | "forbidden operation for smobs with GC data, use SCM_NEWSMOB", | |
508 | SCM_SMOBNAME (n)); | |
509 | #endif | |
510 | SCM_SET_SMOB_DATA (z, scm_must_malloc (size, SCM_SMOBNAME (n))); | |
511 | } | |
54778cd3 | 512 | SCM_SET_CELL_TYPE (z, tc); |
9dd5943c MD |
513 | return z; |
514 | } | |
515 | ||
ceef3208 | 516 | \f |
0f2d19dd JB |
517 | /* {Initialization for i/o types, float, bignum, the type of free cells} |
518 | */ | |
519 | ||
ceef3208 JB |
520 | static int |
521 | freeprint (SCM exp, | |
522 | SCM port, | |
523 | scm_print_state *pstate) | |
524 | { | |
525 | char buf[100]; | |
526 | ||
54778cd3 | 527 | sprintf (buf, "#<freed cell %p; GC missed a reference>", (void *) SCM_UNPACK (exp)); |
ceef3208 JB |
528 | scm_puts (buf, port); |
529 | ||
530 | return 1; | |
531 | } | |
532 | ||
533 | ||
0f2d19dd JB |
534 | void |
535 | scm_smob_prehistory () | |
0f2d19dd JB |
536 | { |
537 | scm_numsmob = 0; | |
9dd5943c MD |
538 | scm_smobs = ((scm_smob_descriptor *) |
539 | malloc (7 * sizeof (scm_smob_descriptor))); | |
540 | ||
541 | /* WARNING: These scm_make_smob_type calls must be done in this order */ | |
23a62151 MD |
542 | scm_make_smob_type_mfpe ("free", 0, |
543 | NULL, NULL, freeprint, NULL); | |
544 | ||
16d35552 | 545 | scm_make_smob_type_mfpe ("big", 0, /* freed in gc */ |
23a62151 MD |
546 | NULL, NULL, scm_bigprint, scm_bigequal); |
547 | ||
16d35552 MD |
548 | scm_make_smob_type_mfpe ("real", 0, /* freed in gc */ |
549 | NULL, NULL, scm_print_real, scm_real_equalp); | |
550 | ||
551 | scm_make_smob_type_mfpe ("complex", 0, /* freed in gc */ | |
552 | NULL, NULL, scm_print_complex, scm_complex_equalp); | |
0f2d19dd | 553 | } |
89e00824 ML |
554 | |
555 | /* | |
556 | Local Variables: | |
557 | c-file-style: "gnu" | |
558 | End: | |
559 | */ |