Commit | Line | Data |
---|---|---|
11cb3d97 | 1 | /* -*-c-*- |
11cb3d97 MW |
2 | * |
3 | * Miscellaneous utilities (not Catacomb-specific) | |
4 | * | |
5 | * (c) 2005 Straylight/Edgeware | |
6 | */ | |
7 | ||
b2687a0a | 8 | /*----- Licensing notice --------------------------------------------------* |
11cb3d97 MW |
9 | * |
10 | * This file is part of the Python interface to Catacomb. | |
11 | * | |
12 | * Catacomb/Python is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License as published by | |
14 | * the Free Software Foundation; either version 2 of the License, or | |
15 | * (at your option) any later version. | |
b2687a0a | 16 | * |
11cb3d97 MW |
17 | * Catacomb/Python is distributed in the hope that it will be useful, |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
b2687a0a | 21 | * |
11cb3d97 MW |
22 | * You should have received a copy of the GNU General Public License |
23 | * along with Catacomb/Python; if not, write to the Free Software Foundation, | |
24 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
25 | */ | |
26 | ||
27 | /*----- Header files ------------------------------------------------------*/ | |
28 | ||
29 | #include "catacomb-python.h" | |
30 | ||
dc075750 MW |
31 | /*----- External values ---------------------------------------------------*/ |
32 | ||
33 | static PyObject *modname = 0; | |
34 | ||
11cb3d97 MW |
35 | /*----- Conversions -------------------------------------------------------*/ |
36 | ||
fbca05a1 MW |
37 | PyObject *getulong(unsigned long w) |
38 | { | |
2308db6f | 39 | if (w <= LONG_MAX) |
fbca05a1 MW |
40 | return (PyInt_FromLong(w)); |
41 | else | |
42 | return (PyLong_FromUnsignedLong(w)); | |
43 | } | |
11cb3d97 MW |
44 | |
45 | PyObject *getbool(int b) | |
46 | { | |
47 | if (b) RETURN_TRUE; | |
48 | else RETURN_FALSE; | |
49 | } | |
50 | ||
51 | PyObject *abstract_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
52 | { | |
53 | PyErr_SetString(PyExc_TypeError, "can't instantiate this class"); | |
54 | return (0); | |
55 | } | |
56 | ||
57 | int convulong(PyObject *o, void *pp) | |
58 | { | |
59 | long i; | |
60 | unsigned long *p = pp; | |
61 | PyObject *t; | |
62 | ||
63 | if (PyInt_Check(o)) { | |
64 | i = PyInt_AS_LONG(o); | |
79144037 | 65 | if (i < 0) VALERR("must be nonnegative"); |
11cb3d97 MW |
66 | *p = i; |
67 | } else { | |
68 | if ((t = PyNumber_Long(o)) == 0) goto end; | |
69 | *p = PyLong_AsUnsignedLong(t); | |
70 | Py_DECREF(t); | |
71 | if (PyErr_Occurred()) goto end; | |
72 | } | |
73 | return (1); | |
74 | end: | |
75 | return (0); | |
76 | } | |
77 | ||
78 | #define CONVU_(n) \ | |
79 | int convu##n(PyObject *o, void *pp) \ | |
80 | { \ | |
81 | unsigned long u; \ | |
82 | uint##n *p = pp; \ | |
83 | \ | |
84 | if (!convulong(o, &u)) goto end; \ | |
79144037 | 85 | if (u > MASK##n) VALERR("out of range"); \ |
11cb3d97 MW |
86 | *p = u; \ |
87 | return (1); \ | |
88 | end: \ | |
89 | return (0); \ | |
90 | } | |
91 | DOUINTSZ(CONVU_) | |
92 | ||
93 | int convuint(PyObject *o, void *pp) | |
94 | { | |
95 | unsigned long u; | |
96 | unsigned *p = pp; | |
97 | ||
98 | if (!convulong(o, &u)) goto end; | |
79144037 | 99 | if (u > UINT_MAX) VALERR("out of range"); |
11cb3d97 MW |
100 | *p = u; |
101 | return (1); | |
102 | end: | |
103 | return (0); | |
104 | } | |
105 | ||
106 | int convmpw(PyObject *o, void *pp) | |
107 | { | |
108 | unsigned long u; | |
109 | unsigned *p = pp; | |
110 | ||
111 | if (!convulong(o, &u)) goto end; | |
79144037 | 112 | if (u > MPW_MAX) VALERR("out of range"); |
11cb3d97 MW |
113 | *p = u; |
114 | return (1); | |
115 | end: | |
116 | return (0); | |
117 | } | |
118 | ||
119 | int convszt(PyObject *o, void *pp) | |
120 | { | |
121 | unsigned long u; | |
122 | size_t *p = pp; | |
123 | ||
124 | if (!convulong(o, &u)) goto end; | |
79144037 | 125 | if (u > ~(size_t)0) VALERR("out of range"); |
11cb3d97 MW |
126 | *p = u; |
127 | return (1); | |
128 | end: | |
129 | return (0); | |
130 | } | |
131 | ||
132 | int convbool(PyObject *o, void *pp) | |
133 | { | |
134 | *(int *)pp = PyObject_IsTrue(o); | |
135 | return (1); | |
136 | } | |
137 | ||
138 | /*----- Type messing ------------------------------------------------------*/ | |
139 | ||
140 | static const PyTypeObject emptytype = { 0 }; | |
141 | ||
142 | void *newtype(PyTypeObject *metaty, | |
143 | const PyTypeObject *skel, | |
144 | const char *name) | |
145 | { | |
146 | PyHeapTypeObject *ty = | |
147 | (PyHeapTypeObject *)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty, 0)); | |
148 | if (!skel) skel = &emptytype; | |
149 | memcpy(ty, skel, sizeof(*skel)); | |
24b3d57b | 150 | if (ty->ht_type.tp_base) Py_INCREF(ty->ht_type.tp_base); |
11cb3d97 | 151 | #define COPY(blah) do { \ |
24b3d57b | 152 | if (ty->ht_type.tp_as_##blah) { \ |
11cb3d97 | 153 | memcpy(&ty->as_##blah, \ |
24b3d57b | 154 | ty->ht_type.tp_as_##blah, \ |
11cb3d97 | 155 | sizeof(ty->as_##blah)); \ |
24b3d57b | 156 | ty->ht_type.tp_as_##blah = &ty->as_##blah; \ |
11cb3d97 MW |
157 | } \ |
158 | } while (0) | |
159 | COPY(number); | |
160 | COPY(sequence); | |
161 | COPY(mapping); | |
162 | COPY(buffer); | |
163 | #undef COPY | |
164 | if (name) | |
24b3d57b MW |
165 | ty->ht_name = PyString_FromString(name); |
166 | else if (ty->ht_type.tp_name) | |
167 | ty->ht_name = PyString_FromString(ty->ht_type.tp_name); | |
168 | if (ty->ht_name) | |
169 | ty->ht_type.tp_name = PyString_AS_STRING(ty->ht_name); | |
98963817 | 170 | DISCARD(PyObject_INIT(&ty->ht_type, metaty)); |
11cb3d97 MW |
171 | Py_INCREF(metaty); |
172 | return (ty); | |
173 | } | |
174 | ||
dc075750 MW |
175 | void typeready(PyTypeObject *ty) |
176 | { | |
177 | PyType_Ready(ty); | |
178 | PyDict_SetItemString(ty->tp_dict, "__module__", modname); | |
179 | } | |
180 | ||
11cb3d97 MW |
181 | PyTypeObject *inittype(PyTypeObject *tyskel) |
182 | { | |
183 | PyTypeObject *ty = newtype(&PyType_Type, tyskel, 0); | |
184 | ty->tp_flags |= Py_TPFLAGS_HEAPTYPE; | |
dc075750 | 185 | typeready(ty); |
11cb3d97 MW |
186 | return (ty); |
187 | } | |
188 | ||
189 | /*----- Constants ---------------------------------------------------------*/ | |
190 | ||
191 | void setconstants(PyObject *mod, const struct nameval *c) | |
192 | { | |
193 | PyObject *x; | |
194 | ||
195 | while (c->name) { | |
196 | if (c->value > LONG_MAX) | |
197 | x = PyLong_FromUnsignedLong(c->value); | |
198 | else | |
199 | x = PyInt_FromLong(c->value); | |
200 | PyModule_AddObject(mod, (/*unconst*/ char *)c->name, x); | |
201 | c++; | |
202 | } | |
203 | } | |
204 | ||
205 | /*----- Building method tables --------------------------------------------*/ | |
206 | ||
207 | DA_DECL(method_v, PyMethodDef); | |
208 | static method_v global_pymethods = DA_INIT; | |
209 | void addmethods(const PyMethodDef *m) | |
210 | { | |
211 | size_t n; | |
212 | ||
213 | for (n = 0; m[n].ml_name; n++); | |
214 | DA_ENSURE(&global_pymethods, n); | |
215 | memcpy(DA(&global_pymethods) + DA_LEN(&global_pymethods), | |
216 | m, n * sizeof(*m)); | |
217 | DA_EXTEND(&global_pymethods, n); | |
218 | } | |
219 | ||
220 | PyMethodDef *donemethods(void) | |
221 | { | |
222 | static const PyMethodDef mzero = { 0 }; | |
223 | DA_PUSH(&global_pymethods, mzero); | |
224 | return (DA(&global_pymethods)); | |
225 | } | |
226 | ||
227 | /*----- Exceptions --------------------------------------------------------*/ | |
228 | ||
634f3db3 MW |
229 | PyObject *mkexc(PyObject *mod, PyObject *base, |
230 | const char *name, PyMethodDef *mm) | |
11cb3d97 MW |
231 | { |
232 | PyObject *nameobj = 0; | |
233 | PyObject *dict = 0; | |
234 | PyObject *exc = 0; | |
235 | PyObject *func = 0; | |
236 | PyObject *meth = 0; | |
237 | ||
238 | if ((nameobj = PyString_FromFormat("%s.%s", | |
239 | PyModule_GetName(mod), | |
240 | name)) == 0 || | |
241 | (dict = PyDict_New()) == 0 || | |
242 | (exc = PyErr_NewException(PyString_AS_STRING(nameobj), | |
243 | base, dict)) == 0) | |
244 | goto fail; | |
245 | ||
246 | if (mm) { | |
247 | while (mm->ml_name) { | |
248 | if ((func = PyCFunction_NewEx(mm, 0, mod)) == 0 || | |
249 | (meth = PyMethod_New(func, 0, exc)) == 0 || | |
250 | PyDict_SetItemString(dict, mm->ml_name, meth)) | |
251 | goto fail; | |
252 | Py_DECREF(func); func = 0; | |
253 | Py_DECREF(meth); meth = 0; | |
254 | mm++; | |
255 | } | |
256 | } | |
257 | ||
258 | done: | |
259 | Py_XDECREF(nameobj); | |
260 | Py_XDECREF(dict); | |
261 | return (exc); | |
262 | ||
263 | fail: | |
264 | Py_XDECREF(exc); | |
265 | Py_XDECREF(func); | |
266 | Py_XDECREF(meth); | |
267 | exc = 0; | |
268 | goto done; | |
269 | } | |
270 | ||
271 | /*----- Generic dictionary methods ----------------------------------------*/ | |
272 | ||
273 | static PyTypeObject *itemiter_pytype, *valiter_pytype; | |
274 | ||
275 | typedef struct iter_pyobj { | |
276 | PyObject_HEAD | |
277 | PyObject *map; | |
278 | PyObject *i; | |
279 | } iter_pyobj; | |
280 | #define ITER_MAP(o) (((iter_pyobj *)(o))->map) | |
281 | #define ITER_I(o) (((iter_pyobj *)(o))->i) | |
282 | ||
283 | static void iter_pydealloc(PyObject *me) | |
284 | { Py_DECREF(ITER_MAP(me)); Py_DECREF(ITER_I(me)); FREEOBJ(me); } | |
285 | ||
286 | static PyObject *itemiter_pynext(PyObject *me) | |
287 | { | |
288 | PyObject *k = 0, *v = 0, *rc = 0; | |
b2687a0a | 289 | |
11cb3d97 MW |
290 | if ((k = PyIter_Next(ITER_I(me))) != 0 && |
291 | (v = PyObject_GetItem(ITER_MAP(me), k)) != 0) | |
292 | rc = Py_BuildValue("(OO)", k, v); | |
293 | Py_XDECREF(k); Py_XDECREF(v); | |
294 | return (rc); | |
295 | } | |
296 | ||
297 | static PyTypeObject itemiter_pytype_skel = { | |
298 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
299 | "ItemIter", /* @tp_name@ */ | |
300 | sizeof(iter_pyobj), /* @tp_basicsize@ */ | |
301 | 0, /* @tp_itemsize@ */ | |
302 | ||
303 | iter_pydealloc, /* @tp_dealloc@ */ | |
304 | 0, /* @tp_print@ */ | |
305 | 0, /* @tp_getattr@ */ | |
306 | 0, /* @tp_setattr@ */ | |
307 | 0, /* @tp_compare@ */ | |
308 | 0, /* @tp_repr@ */ | |
309 | 0, /* @tp_as_number@ */ | |
310 | 0, /* @tp_as_sequence@ */ | |
311 | 0, /* @tp_as_mapping@ */ | |
312 | 0, /* @tp_hash@ */ | |
313 | 0, /* @tp_call@ */ | |
314 | 0, /* @tp_str@ */ | |
315 | 0, /* @tp_getattro@ */ | |
316 | 0, /* @tp_setattro@ */ | |
317 | 0, /* @tp_as_buffer@ */ | |
318 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
319 | Py_TPFLAGS_BASETYPE, | |
320 | ||
321 | /* @tp_doc@ */ | |
322 | "Iterates over the items of a mapping.", | |
323 | ||
324 | 0, /* @tp_traverse@ */ | |
325 | 0, /* @tp_clear@ */ | |
326 | 0, /* @tp_richcompare@ */ | |
327 | 0, /* @tp_weaklistoffset@ */ | |
328 | PyObject_SelfIter, /* @tp_iter@ */ | |
329 | itemiter_pynext, /* @tp_iternext@ */ | |
330 | 0, /* @tp_methods@ */ | |
331 | 0, /* @tp_members@ */ | |
332 | 0, /* @tp_getset@ */ | |
333 | 0, /* @tp_base@ */ | |
334 | 0, /* @tp_dict@ */ | |
335 | 0, /* @tp_descr_get@ */ | |
336 | 0, /* @tp_descr_set@ */ | |
337 | 0, /* @tp_dictoffset@ */ | |
338 | 0, /* @tp_init@ */ | |
339 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
340 | abstract_pynew, /* @tp_new@ */ | |
341 | 0, /* @tp_free@ */ | |
342 | 0 /* @tp_is_gc@ */ | |
343 | }; | |
344 | ||
345 | static PyObject *valiter_pynext(PyObject *me) | |
346 | { | |
347 | PyObject *k = 0, *rc = 0; | |
b2687a0a | 348 | |
11cb3d97 MW |
349 | if ((k = PyIter_Next(ITER_I(me))) != 0) |
350 | rc = PyObject_GetItem(ITER_MAP(me), k); | |
351 | Py_XDECREF(k); | |
352 | return (rc); | |
353 | } | |
354 | ||
355 | static PyTypeObject valiter_pytype_skel = { | |
356 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
357 | "ValueIter", /* @tp_name@ */ | |
358 | sizeof(iter_pyobj), /* @tp_basicsize@ */ | |
359 | 0, /* @tp_itemsize@ */ | |
360 | ||
361 | iter_pydealloc, /* @tp_dealloc@ */ | |
362 | 0, /* @tp_print@ */ | |
363 | 0, /* @tp_getattr@ */ | |
364 | 0, /* @tp_setattr@ */ | |
365 | 0, /* @tp_compare@ */ | |
366 | 0, /* @tp_repr@ */ | |
367 | 0, /* @tp_as_number@ */ | |
368 | 0, /* @tp_as_sequence@ */ | |
369 | 0, /* @tp_as_mapping@ */ | |
370 | 0, /* @tp_hash@ */ | |
371 | 0, /* @tp_call@ */ | |
372 | 0, /* @tp_str@ */ | |
373 | 0, /* @tp_getattro@ */ | |
374 | 0, /* @tp_setattro@ */ | |
375 | 0, /* @tp_as_buffer@ */ | |
376 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
377 | Py_TPFLAGS_BASETYPE, | |
378 | ||
379 | /* @tp_doc@ */ | |
380 | "Iterates over the items of a mapping.", | |
381 | ||
382 | 0, /* @tp_traverse@ */ | |
383 | 0, /* @tp_clear@ */ | |
384 | 0, /* @tp_richcompare@ */ | |
385 | 0, /* @tp_weaklistoffset@ */ | |
386 | PyObject_SelfIter, /* @tp_iter@ */ | |
387 | valiter_pynext, /* @tp_iternext@ */ | |
388 | 0, /* @tp_methods@ */ | |
389 | 0, /* @tp_members@ */ | |
390 | 0, /* @tp_getset@ */ | |
391 | 0, /* @tp_base@ */ | |
392 | 0, /* @tp_dict@ */ | |
393 | 0, /* @tp_descr_get@ */ | |
394 | 0, /* @tp_descr_set@ */ | |
395 | 0, /* @tp_dictoffset@ */ | |
396 | 0, /* @tp_init@ */ | |
397 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
398 | abstract_pynew, /* @tp_new@ */ | |
399 | 0, /* @tp_free@ */ | |
400 | 0 /* @tp_is_gc@ */ | |
401 | }; | |
402 | ||
403 | PySequenceMethods gmap_pysequence = { | |
404 | 0, /* @sq_length@ */ | |
405 | 0, /* @sq_concat@ */ | |
406 | 0, /* @sq_repeat@ */ | |
407 | 0, /* @sq_item@ */ | |
408 | 0, /* @sq_slice@ */ | |
409 | 0, /* @sq_ass_item@ */ | |
410 | 0, /* @sq_ass_slice@ */ | |
411 | PyMapping_HasKey, /* @sq_contains@ */ | |
412 | 0, /* @sq_inplace_concat@ */ | |
413 | 0 /* @sq_inplace_repeat@ */ | |
b2687a0a | 414 | }; |
11cb3d97 | 415 | |
3d8f5f7c | 416 | Py_ssize_t gmap_pysize(PyObject *me) |
11cb3d97 MW |
417 | { |
418 | PyObject *i = 0, *x = 0; | |
419 | int rc = -1; | |
420 | int n = 0; | |
421 | ||
422 | if ((i = PyObject_GetIter(me)) == 0) goto done; | |
423 | while ((x = PyIter_Next(i)) != 0) { n++; Py_DECREF(x); x = 0; } | |
424 | if (PyErr_Occurred()) goto done; | |
425 | rc = n; | |
426 | done: | |
427 | Py_XDECREF(i); Py_XDECREF(x); | |
428 | return (rc); | |
429 | } | |
430 | ||
431 | PyObject *gmapmeth_has_key(PyObject *me, PyObject *arg) | |
432 | { | |
433 | PyObject *k; | |
434 | if (!PyArg_ParseTuple(arg, "O:has_key", &k)) return (0); | |
435 | return (getbool(PyMapping_HasKey(me, k))); | |
436 | } | |
437 | ||
438 | PyObject *gmapmeth_keys(PyObject *me, PyObject *arg) | |
439 | { | |
440 | PyObject *l = 0, *i = 0, *k, *rc = 0; | |
441 | int err; | |
442 | ||
443 | if (!PyArg_ParseTuple(arg, ":keys") || | |
444 | (l = PyList_New(0)) == 0 || | |
445 | (i = PyObject_GetIter(me)) == 0) | |
446 | goto done; | |
447 | while ((k = PyIter_Next(i)) != 0) | |
448 | { err = PyList_Append(l, k); Py_DECREF(k); if (err) goto done; } | |
449 | if (PyErr_Occurred()) goto done; | |
450 | rc = l; l = 0; | |
451 | done: | |
452 | Py_XDECREF(l); Py_XDECREF(i); | |
453 | return (rc); | |
454 | } | |
455 | ||
456 | PyObject *gmapmeth_values(PyObject *me, PyObject *arg) | |
457 | { | |
458 | PyObject *l = 0, *i = 0, *k, *v, *rc = 0; | |
459 | int err = 0; | |
460 | ||
461 | if (!PyArg_ParseTuple(arg, ":values") || | |
462 | (l = PyList_New(0)) == 0 || | |
463 | (i = PyObject_GetIter(me)) == 0) | |
464 | goto done; | |
b2687a0a | 465 | while ((k = PyIter_Next(i)) != 0) { |
11cb3d97 MW |
466 | if ((v = PyObject_GetItem(me, k)) == 0 || |
467 | PyList_Append(l, v)) | |
468 | err = -1; | |
469 | Py_DECREF(k); Py_XDECREF(v); | |
470 | if (err) goto done; | |
471 | } | |
472 | if (PyErr_Occurred()) goto done; | |
473 | rc = l; l = 0; | |
474 | done: | |
475 | Py_XDECREF(l); Py_XDECREF(i); | |
476 | return (rc); | |
477 | } | |
478 | ||
479 | PyObject *gmapmeth_items(PyObject *me, PyObject *arg) | |
480 | { | |
481 | PyObject *l = 0, *i = 0, *k, *v, *z, *rc = 0; | |
482 | int err = 0; | |
483 | ||
484 | if (!PyArg_ParseTuple(arg, ":items") || | |
485 | (l = PyList_New(0)) == 0 || | |
486 | (i = PyObject_GetIter(me)) == 0) | |
487 | goto done; | |
488 | while ((k = PyIter_Next(i)) != 0) { | |
489 | z = 0; | |
490 | if ((v = PyObject_GetItem(me, k)) == 0 || | |
491 | (z = Py_BuildValue("(OO)", k, v)) == 0 || | |
492 | PyList_Append(l, z)) | |
493 | err = -1; | |
494 | Py_DECREF(k); Py_XDECREF(v); Py_XDECREF(z); | |
495 | if (err) goto done; | |
496 | } | |
497 | if (PyErr_Occurred()) goto done; | |
498 | rc = l; l = 0; | |
499 | done: | |
500 | Py_XDECREF(l); Py_XDECREF(i); | |
501 | return (rc); | |
502 | } | |
503 | ||
504 | PyObject *gmapmeth_iterkeys(PyObject *me, PyObject *arg) | |
505 | { | |
506 | if (!PyArg_ParseTuple(arg, ":iterkeys")) return (0); | |
507 | return (PyObject_GetIter(me)); | |
508 | } | |
509 | ||
510 | PyObject *gmapmeth_itervalues(PyObject *me, PyObject *arg) | |
511 | { | |
512 | PyObject *i; | |
513 | iter_pyobj *ii; | |
514 | ||
515 | if (!PyArg_ParseTuple(arg, ":itervalues") || | |
516 | (i = PyObject_GetIter(me)) == 0) | |
517 | return (0); | |
518 | ii = PyObject_NEW(iter_pyobj, valiter_pytype); | |
519 | ii->map = me; Py_INCREF(me); | |
520 | ii->i = i; | |
521 | return ((PyObject *)ii); | |
522 | } | |
523 | ||
524 | PyObject *gmapmeth_iteritems(PyObject *me, PyObject *arg) | |
525 | { | |
526 | PyObject *i; | |
527 | iter_pyobj *ii; | |
528 | ||
529 | if (!PyArg_ParseTuple(arg, ":iteritems") || | |
530 | (i = PyObject_GetIter(me)) == 0) | |
531 | return (0); | |
532 | ii = PyObject_NEW(iter_pyobj, itemiter_pytype); | |
533 | ii->map = me; Py_INCREF(me); | |
534 | ii->i = i; | |
535 | return ((PyObject *)ii); | |
536 | } | |
537 | ||
538 | PyObject *gmapmeth_clear(PyObject *me, PyObject *arg) | |
539 | { | |
540 | PyObject *i = 0, *k = 0, *rc = 0; | |
541 | ||
542 | if (!PyArg_ParseTuple(arg, ":clear") || | |
543 | (i = PyObject_GetIter(me)) == 0) | |
544 | goto end; | |
545 | while ((k = PyIter_Next(i)) != 0) { | |
546 | PyObject_DelItem(me, k); | |
547 | Py_DECREF(k); | |
548 | } | |
549 | if (PyErr_Occurred()) goto end; | |
550 | rc = me; Py_INCREF(me); | |
551 | end: | |
552 | Py_XDECREF(i); | |
553 | return (rc); | |
554 | } | |
555 | ||
556 | static char *def_kwlist[] = { "key", "default", 0 }; | |
557 | ||
558 | PyObject *gmapmeth_get(PyObject *me, PyObject *arg, PyObject *kw) | |
559 | { | |
560 | PyObject *k, *def = Py_None, *v; | |
561 | ||
562 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:get", def_kwlist, &k, &def)) | |
563 | return (0); | |
564 | if ((v = PyObject_GetItem(me, k)) != 0) return (v); | |
565 | PyErr_Clear(); | |
566 | RETURN_OBJ(def); | |
567 | } | |
568 | ||
569 | PyObject *gmapmeth_setdefault(PyObject *me, PyObject *arg, PyObject *kw) | |
570 | { | |
571 | PyObject *k, *def = Py_None, *v; | |
572 | ||
573 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:setdefault", | |
574 | def_kwlist, &k, &def)) | |
575 | return (0); | |
576 | if ((v = PyObject_GetItem(me, k)) != 0) return (v); | |
577 | PyErr_Clear(); | |
578 | if (PyObject_SetItem(me, k, def)) return (0); | |
579 | RETURN_OBJ(def); | |
580 | } | |
581 | ||
582 | PyObject *gmapmeth_pop(PyObject *me, PyObject *arg, PyObject *kw) | |
583 | { | |
584 | PyObject *k, *def = 0, *v; | |
585 | ||
586 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:pop", def_kwlist, &k, &def)) | |
587 | return (0); | |
588 | if ((v = PyObject_GetItem(me, k)) != 0) { | |
589 | PyObject_DelItem(me, k); | |
590 | return (v); | |
591 | } | |
592 | PyErr_Clear(); | |
593 | RETURN_OBJ(def); | |
594 | } | |
595 | ||
596 | PyObject *gmapmeth_update(PyObject *me, PyObject *arg) | |
597 | { | |
598 | PyObject *map, *i = 0, *k, *v, *rc = 0; | |
599 | int err = 0; | |
600 | ||
601 | if (!PyArg_ParseTuple(arg, "O:update", &map) || | |
602 | (i = PyObject_GetIter(map)) == 0) | |
603 | goto end; | |
604 | while ((k = PyIter_Next(i)) != 0) { | |
605 | if ((v = PyObject_GetItem(map, k)) == 0 || | |
606 | PyObject_SetItem(me, k, v)) | |
607 | err = -1; | |
608 | Py_DECREF(k); Py_XDECREF(v); | |
609 | if (err) goto end; | |
610 | } | |
611 | if (PyErr_Occurred()) goto end; | |
612 | rc = me; Py_INCREF(me); | |
613 | end: | |
614 | Py_XDECREF(i); | |
615 | return (rc); | |
616 | } | |
617 | ||
618 | PyObject *gmapmeth_popitem(PyObject *me, PyObject *arg) | |
619 | { | |
620 | PyObject *i = 0, *k = 0, *v = 0, *rc = 0; | |
621 | ||
622 | if (!PyArg_ParseTuple(arg, ":popitem") || | |
623 | (i = PyObject_GetIter(me))) | |
624 | goto end; | |
625 | if ((k = PyIter_Next(i)) == 0) { | |
626 | if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty"); | |
627 | goto end; | |
628 | } | |
629 | if ((v = PyObject_GetItem(me, k)) == 0 || | |
630 | PyObject_DelItem(me, k)) | |
631 | goto end; | |
632 | rc = Py_BuildValue("(OO)", k, v); | |
633 | end: | |
634 | Py_XDECREF(i); Py_XDECREF(k); Py_XDECREF(v); | |
635 | return (rc); | |
636 | } | |
637 | ||
638 | PyMethodDef gmap_pymethods[] = { | |
639 | GMAP_METHODS | |
640 | { 0 } | |
641 | }; | |
642 | ||
643 | /*----- Initialization ----------------------------------------------------*/ | |
644 | ||
e56eb7d6 | 645 | void util_pyinit(void) |
11cb3d97 | 646 | { |
dc075750 | 647 | modname = PyString_FromString("catacomb"); |
11cb3d97 MW |
648 | INITTYPE(itemiter, root); |
649 | INITTYPE(valiter, root); | |
650 | } | |
651 | ||
e56eb7d6 | 652 | void util_pyinsert(PyObject *mod) |
11cb3d97 MW |
653 | { |
654 | INSERT("ItemIter", itemiter_pytype); | |
655 | INSERT("ValueIter", valiter_pytype); | |
656 | } | |
657 | ||
658 | /*----- That's all, folks -------------------------------------------------*/ |