Commit | Line | Data |
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68ec53f3 MW |
1 | /* -*-c-*- |
2 | * | |
68ec53f3 MW |
3 | * Miscellaneous utilities (not Catacomb-specific) |
4 | * | |
5 | * (c) 2005 Straylight/Edgeware | |
6 | */ | |
7 | ||
0b1eafbf | 8 | /*----- Licensing notice --------------------------------------------------* |
68ec53f3 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. | |
0b1eafbf | 16 | * |
68ec53f3 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. | |
0b1eafbf | 21 | * |
68ec53f3 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 | ||
31 | /*----- Conversions -------------------------------------------------------*/ | |
32 | ||
1e082a86 MW |
33 | PyObject *getulong(unsigned long w) |
34 | { | |
4f3d0934 | 35 | if (w <= LONG_MAX) |
1e082a86 MW |
36 | return (PyInt_FromLong(w)); |
37 | else | |
38 | return (PyLong_FromUnsignedLong(w)); | |
39 | } | |
68ec53f3 MW |
40 | |
41 | PyObject *getbool(int b) | |
42 | { | |
43 | if (b) RETURN_TRUE; | |
44 | else RETURN_FALSE; | |
45 | } | |
46 | ||
47 | PyObject *abstract_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) | |
48 | { | |
49 | PyErr_SetString(PyExc_TypeError, "can't instantiate this class"); | |
50 | return (0); | |
51 | } | |
52 | ||
53 | int convulong(PyObject *o, void *pp) | |
54 | { | |
55 | long i; | |
56 | unsigned long *p = pp; | |
57 | PyObject *t; | |
58 | ||
59 | if (PyInt_Check(o)) { | |
60 | i = PyInt_AS_LONG(o); | |
799dffb2 | 61 | if (i < 0) VALERR("must be nonnegative"); |
68ec53f3 MW |
62 | *p = i; |
63 | } else { | |
64 | if ((t = PyNumber_Long(o)) == 0) goto end; | |
65 | *p = PyLong_AsUnsignedLong(t); | |
66 | Py_DECREF(t); | |
67 | if (PyErr_Occurred()) goto end; | |
68 | } | |
69 | return (1); | |
70 | end: | |
71 | return (0); | |
72 | } | |
73 | ||
74 | #define CONVU_(n) \ | |
75 | int convu##n(PyObject *o, void *pp) \ | |
76 | { \ | |
77 | unsigned long u; \ | |
78 | uint##n *p = pp; \ | |
79 | \ | |
80 | if (!convulong(o, &u)) goto end; \ | |
799dffb2 | 81 | if (u > MASK##n) VALERR("out of range"); \ |
68ec53f3 MW |
82 | *p = u; \ |
83 | return (1); \ | |
84 | end: \ | |
85 | return (0); \ | |
86 | } | |
87 | DOUINTSZ(CONVU_) | |
88 | ||
89 | int convuint(PyObject *o, void *pp) | |
90 | { | |
91 | unsigned long u; | |
92 | unsigned *p = pp; | |
93 | ||
94 | if (!convulong(o, &u)) goto end; | |
799dffb2 | 95 | if (u > UINT_MAX) VALERR("out of range"); |
68ec53f3 MW |
96 | *p = u; |
97 | return (1); | |
98 | end: | |
99 | return (0); | |
100 | } | |
101 | ||
102 | int convmpw(PyObject *o, void *pp) | |
103 | { | |
104 | unsigned long u; | |
105 | unsigned *p = pp; | |
106 | ||
107 | if (!convulong(o, &u)) goto end; | |
799dffb2 | 108 | if (u > MPW_MAX) VALERR("out of range"); |
68ec53f3 MW |
109 | *p = u; |
110 | return (1); | |
111 | end: | |
112 | return (0); | |
113 | } | |
114 | ||
115 | int convszt(PyObject *o, void *pp) | |
116 | { | |
117 | unsigned long u; | |
118 | size_t *p = pp; | |
119 | ||
120 | if (!convulong(o, &u)) goto end; | |
799dffb2 | 121 | if (u > ~(size_t)0) VALERR("out of range"); |
68ec53f3 MW |
122 | *p = u; |
123 | return (1); | |
124 | end: | |
125 | return (0); | |
126 | } | |
127 | ||
128 | int convbool(PyObject *o, void *pp) | |
129 | { | |
130 | *(int *)pp = PyObject_IsTrue(o); | |
131 | return (1); | |
132 | } | |
133 | ||
134 | /*----- Type messing ------------------------------------------------------*/ | |
135 | ||
136 | static const PyTypeObject emptytype = { 0 }; | |
137 | ||
138 | void *newtype(PyTypeObject *metaty, | |
139 | const PyTypeObject *skel, | |
140 | const char *name) | |
141 | { | |
142 | PyHeapTypeObject *ty = | |
143 | (PyHeapTypeObject *)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty, 0)); | |
144 | if (!skel) skel = &emptytype; | |
145 | memcpy(ty, skel, sizeof(*skel)); | |
d4a9e7e7 | 146 | if (ty->ht_type.tp_base) Py_INCREF(ty->ht_type.tp_base); |
68ec53f3 | 147 | #define COPY(blah) do { \ |
d4a9e7e7 | 148 | if (ty->ht_type.tp_as_##blah) { \ |
68ec53f3 | 149 | memcpy(&ty->as_##blah, \ |
d4a9e7e7 | 150 | ty->ht_type.tp_as_##blah, \ |
68ec53f3 | 151 | sizeof(ty->as_##blah)); \ |
d4a9e7e7 | 152 | ty->ht_type.tp_as_##blah = &ty->as_##blah; \ |
68ec53f3 MW |
153 | } \ |
154 | } while (0) | |
155 | COPY(number); | |
156 | COPY(sequence); | |
157 | COPY(mapping); | |
158 | COPY(buffer); | |
159 | #undef COPY | |
160 | if (name) | |
d4a9e7e7 MW |
161 | ty->ht_name = PyString_FromString(name); |
162 | else if (ty->ht_type.tp_name) | |
163 | ty->ht_name = PyString_FromString(ty->ht_type.tp_name); | |
164 | if (ty->ht_name) | |
165 | ty->ht_type.tp_name = PyString_AS_STRING(ty->ht_name); | |
f60b520f | 166 | DISCARD(PyObject_INIT(&ty->ht_type, metaty)); |
68ec53f3 MW |
167 | Py_INCREF(metaty); |
168 | return (ty); | |
169 | } | |
170 | ||
171 | PyTypeObject *inittype(PyTypeObject *tyskel) | |
172 | { | |
173 | PyTypeObject *ty = newtype(&PyType_Type, tyskel, 0); | |
174 | ty->tp_flags |= Py_TPFLAGS_HEAPTYPE; | |
175 | PyType_Ready(ty); | |
176 | return (ty); | |
177 | } | |
178 | ||
179 | /*----- Constants ---------------------------------------------------------*/ | |
180 | ||
181 | void setconstants(PyObject *mod, const struct nameval *c) | |
182 | { | |
183 | PyObject *x; | |
184 | ||
185 | while (c->name) { | |
186 | if (c->value > LONG_MAX) | |
187 | x = PyLong_FromUnsignedLong(c->value); | |
188 | else | |
189 | x = PyInt_FromLong(c->value); | |
190 | PyModule_AddObject(mod, (/*unconst*/ char *)c->name, x); | |
191 | c++; | |
192 | } | |
193 | } | |
194 | ||
195 | /*----- Building method tables --------------------------------------------*/ | |
196 | ||
197 | DA_DECL(method_v, PyMethodDef); | |
198 | static method_v global_pymethods = DA_INIT; | |
199 | void addmethods(const PyMethodDef *m) | |
200 | { | |
201 | size_t n; | |
202 | ||
203 | for (n = 0; m[n].ml_name; n++); | |
204 | DA_ENSURE(&global_pymethods, n); | |
205 | memcpy(DA(&global_pymethods) + DA_LEN(&global_pymethods), | |
206 | m, n * sizeof(*m)); | |
207 | DA_EXTEND(&global_pymethods, n); | |
208 | } | |
209 | ||
210 | PyMethodDef *donemethods(void) | |
211 | { | |
212 | static const PyMethodDef mzero = { 0 }; | |
213 | DA_PUSH(&global_pymethods, mzero); | |
214 | return (DA(&global_pymethods)); | |
215 | } | |
216 | ||
217 | /*----- Exceptions --------------------------------------------------------*/ | |
218 | ||
219 | PyObject * mkexc(PyObject *mod, PyObject *base, | |
220 | const char *name, PyMethodDef *mm) | |
221 | { | |
222 | PyObject *nameobj = 0; | |
223 | PyObject *dict = 0; | |
224 | PyObject *exc = 0; | |
225 | PyObject *func = 0; | |
226 | PyObject *meth = 0; | |
227 | ||
228 | if ((nameobj = PyString_FromFormat("%s.%s", | |
229 | PyModule_GetName(mod), | |
230 | name)) == 0 || | |
231 | (dict = PyDict_New()) == 0 || | |
232 | (exc = PyErr_NewException(PyString_AS_STRING(nameobj), | |
233 | base, dict)) == 0) | |
234 | goto fail; | |
235 | ||
236 | if (mm) { | |
237 | while (mm->ml_name) { | |
238 | if ((func = PyCFunction_NewEx(mm, 0, mod)) == 0 || | |
239 | (meth = PyMethod_New(func, 0, exc)) == 0 || | |
240 | PyDict_SetItemString(dict, mm->ml_name, meth)) | |
241 | goto fail; | |
242 | Py_DECREF(func); func = 0; | |
243 | Py_DECREF(meth); meth = 0; | |
244 | mm++; | |
245 | } | |
246 | } | |
247 | ||
248 | done: | |
249 | Py_XDECREF(nameobj); | |
250 | Py_XDECREF(dict); | |
251 | return (exc); | |
252 | ||
253 | fail: | |
254 | Py_XDECREF(exc); | |
255 | Py_XDECREF(func); | |
256 | Py_XDECREF(meth); | |
257 | exc = 0; | |
258 | goto done; | |
259 | } | |
260 | ||
261 | /*----- Generic dictionary methods ----------------------------------------*/ | |
262 | ||
263 | static PyTypeObject *itemiter_pytype, *valiter_pytype; | |
264 | ||
265 | typedef struct iter_pyobj { | |
266 | PyObject_HEAD | |
267 | PyObject *map; | |
268 | PyObject *i; | |
269 | } iter_pyobj; | |
270 | #define ITER_MAP(o) (((iter_pyobj *)(o))->map) | |
271 | #define ITER_I(o) (((iter_pyobj *)(o))->i) | |
272 | ||
273 | static void iter_pydealloc(PyObject *me) | |
274 | { Py_DECREF(ITER_MAP(me)); Py_DECREF(ITER_I(me)); FREEOBJ(me); } | |
275 | ||
276 | static PyObject *itemiter_pynext(PyObject *me) | |
277 | { | |
278 | PyObject *k = 0, *v = 0, *rc = 0; | |
0b1eafbf | 279 | |
68ec53f3 MW |
280 | if ((k = PyIter_Next(ITER_I(me))) != 0 && |
281 | (v = PyObject_GetItem(ITER_MAP(me), k)) != 0) | |
282 | rc = Py_BuildValue("(OO)", k, v); | |
283 | Py_XDECREF(k); Py_XDECREF(v); | |
284 | return (rc); | |
285 | } | |
286 | ||
287 | static PyTypeObject itemiter_pytype_skel = { | |
288 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
289 | "ItemIter", /* @tp_name@ */ | |
290 | sizeof(iter_pyobj), /* @tp_basicsize@ */ | |
291 | 0, /* @tp_itemsize@ */ | |
292 | ||
293 | iter_pydealloc, /* @tp_dealloc@ */ | |
294 | 0, /* @tp_print@ */ | |
295 | 0, /* @tp_getattr@ */ | |
296 | 0, /* @tp_setattr@ */ | |
297 | 0, /* @tp_compare@ */ | |
298 | 0, /* @tp_repr@ */ | |
299 | 0, /* @tp_as_number@ */ | |
300 | 0, /* @tp_as_sequence@ */ | |
301 | 0, /* @tp_as_mapping@ */ | |
302 | 0, /* @tp_hash@ */ | |
303 | 0, /* @tp_call@ */ | |
304 | 0, /* @tp_str@ */ | |
305 | 0, /* @tp_getattro@ */ | |
306 | 0, /* @tp_setattro@ */ | |
307 | 0, /* @tp_as_buffer@ */ | |
308 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
309 | Py_TPFLAGS_BASETYPE, | |
310 | ||
311 | /* @tp_doc@ */ | |
312 | "Iterates over the items of a mapping.", | |
313 | ||
314 | 0, /* @tp_traverse@ */ | |
315 | 0, /* @tp_clear@ */ | |
316 | 0, /* @tp_richcompare@ */ | |
317 | 0, /* @tp_weaklistoffset@ */ | |
318 | PyObject_SelfIter, /* @tp_iter@ */ | |
319 | itemiter_pynext, /* @tp_iternext@ */ | |
320 | 0, /* @tp_methods@ */ | |
321 | 0, /* @tp_members@ */ | |
322 | 0, /* @tp_getset@ */ | |
323 | 0, /* @tp_base@ */ | |
324 | 0, /* @tp_dict@ */ | |
325 | 0, /* @tp_descr_get@ */ | |
326 | 0, /* @tp_descr_set@ */ | |
327 | 0, /* @tp_dictoffset@ */ | |
328 | 0, /* @tp_init@ */ | |
329 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
330 | abstract_pynew, /* @tp_new@ */ | |
331 | 0, /* @tp_free@ */ | |
332 | 0 /* @tp_is_gc@ */ | |
333 | }; | |
334 | ||
335 | static PyObject *valiter_pynext(PyObject *me) | |
336 | { | |
337 | PyObject *k = 0, *rc = 0; | |
0b1eafbf | 338 | |
68ec53f3 MW |
339 | if ((k = PyIter_Next(ITER_I(me))) != 0) |
340 | rc = PyObject_GetItem(ITER_MAP(me), k); | |
341 | Py_XDECREF(k); | |
342 | return (rc); | |
343 | } | |
344 | ||
345 | static PyTypeObject valiter_pytype_skel = { | |
346 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
347 | "ValueIter", /* @tp_name@ */ | |
348 | sizeof(iter_pyobj), /* @tp_basicsize@ */ | |
349 | 0, /* @tp_itemsize@ */ | |
350 | ||
351 | iter_pydealloc, /* @tp_dealloc@ */ | |
352 | 0, /* @tp_print@ */ | |
353 | 0, /* @tp_getattr@ */ | |
354 | 0, /* @tp_setattr@ */ | |
355 | 0, /* @tp_compare@ */ | |
356 | 0, /* @tp_repr@ */ | |
357 | 0, /* @tp_as_number@ */ | |
358 | 0, /* @tp_as_sequence@ */ | |
359 | 0, /* @tp_as_mapping@ */ | |
360 | 0, /* @tp_hash@ */ | |
361 | 0, /* @tp_call@ */ | |
362 | 0, /* @tp_str@ */ | |
363 | 0, /* @tp_getattro@ */ | |
364 | 0, /* @tp_setattro@ */ | |
365 | 0, /* @tp_as_buffer@ */ | |
366 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
367 | Py_TPFLAGS_BASETYPE, | |
368 | ||
369 | /* @tp_doc@ */ | |
370 | "Iterates over the items of a mapping.", | |
371 | ||
372 | 0, /* @tp_traverse@ */ | |
373 | 0, /* @tp_clear@ */ | |
374 | 0, /* @tp_richcompare@ */ | |
375 | 0, /* @tp_weaklistoffset@ */ | |
376 | PyObject_SelfIter, /* @tp_iter@ */ | |
377 | valiter_pynext, /* @tp_iternext@ */ | |
378 | 0, /* @tp_methods@ */ | |
379 | 0, /* @tp_members@ */ | |
380 | 0, /* @tp_getset@ */ | |
381 | 0, /* @tp_base@ */ | |
382 | 0, /* @tp_dict@ */ | |
383 | 0, /* @tp_descr_get@ */ | |
384 | 0, /* @tp_descr_set@ */ | |
385 | 0, /* @tp_dictoffset@ */ | |
386 | 0, /* @tp_init@ */ | |
387 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
388 | abstract_pynew, /* @tp_new@ */ | |
389 | 0, /* @tp_free@ */ | |
390 | 0 /* @tp_is_gc@ */ | |
391 | }; | |
392 | ||
393 | PySequenceMethods gmap_pysequence = { | |
394 | 0, /* @sq_length@ */ | |
395 | 0, /* @sq_concat@ */ | |
396 | 0, /* @sq_repeat@ */ | |
397 | 0, /* @sq_item@ */ | |
398 | 0, /* @sq_slice@ */ | |
399 | 0, /* @sq_ass_item@ */ | |
400 | 0, /* @sq_ass_slice@ */ | |
401 | PyMapping_HasKey, /* @sq_contains@ */ | |
402 | 0, /* @sq_inplace_concat@ */ | |
403 | 0 /* @sq_inplace_repeat@ */ | |
0b1eafbf | 404 | }; |
68ec53f3 MW |
405 | |
406 | int gmap_pysize(PyObject *me) | |
407 | { | |
408 | PyObject *i = 0, *x = 0; | |
409 | int rc = -1; | |
410 | int n = 0; | |
411 | ||
412 | if ((i = PyObject_GetIter(me)) == 0) goto done; | |
413 | while ((x = PyIter_Next(i)) != 0) { n++; Py_DECREF(x); x = 0; } | |
414 | if (PyErr_Occurred()) goto done; | |
415 | rc = n; | |
416 | done: | |
417 | Py_XDECREF(i); Py_XDECREF(x); | |
418 | return (rc); | |
419 | } | |
420 | ||
421 | PyObject *gmapmeth_has_key(PyObject *me, PyObject *arg) | |
422 | { | |
423 | PyObject *k; | |
424 | if (!PyArg_ParseTuple(arg, "O:has_key", &k)) return (0); | |
425 | return (getbool(PyMapping_HasKey(me, k))); | |
426 | } | |
427 | ||
428 | PyObject *gmapmeth_keys(PyObject *me, PyObject *arg) | |
429 | { | |
430 | PyObject *l = 0, *i = 0, *k, *rc = 0; | |
431 | int err; | |
432 | ||
433 | if (!PyArg_ParseTuple(arg, ":keys") || | |
434 | (l = PyList_New(0)) == 0 || | |
435 | (i = PyObject_GetIter(me)) == 0) | |
436 | goto done; | |
437 | while ((k = PyIter_Next(i)) != 0) | |
438 | { err = PyList_Append(l, k); Py_DECREF(k); if (err) goto done; } | |
439 | if (PyErr_Occurred()) goto done; | |
440 | rc = l; l = 0; | |
441 | done: | |
442 | Py_XDECREF(l); Py_XDECREF(i); | |
443 | return (rc); | |
444 | } | |
445 | ||
446 | PyObject *gmapmeth_values(PyObject *me, PyObject *arg) | |
447 | { | |
448 | PyObject *l = 0, *i = 0, *k, *v, *rc = 0; | |
449 | int err = 0; | |
450 | ||
451 | if (!PyArg_ParseTuple(arg, ":values") || | |
452 | (l = PyList_New(0)) == 0 || | |
453 | (i = PyObject_GetIter(me)) == 0) | |
454 | goto done; | |
0b1eafbf | 455 | while ((k = PyIter_Next(i)) != 0) { |
68ec53f3 MW |
456 | if ((v = PyObject_GetItem(me, k)) == 0 || |
457 | PyList_Append(l, v)) | |
458 | err = -1; | |
459 | Py_DECREF(k); Py_XDECREF(v); | |
460 | if (err) goto done; | |
461 | } | |
462 | if (PyErr_Occurred()) goto done; | |
463 | rc = l; l = 0; | |
464 | done: | |
465 | Py_XDECREF(l); Py_XDECREF(i); | |
466 | return (rc); | |
467 | } | |
468 | ||
469 | PyObject *gmapmeth_items(PyObject *me, PyObject *arg) | |
470 | { | |
471 | PyObject *l = 0, *i = 0, *k, *v, *z, *rc = 0; | |
472 | int err = 0; | |
473 | ||
474 | if (!PyArg_ParseTuple(arg, ":items") || | |
475 | (l = PyList_New(0)) == 0 || | |
476 | (i = PyObject_GetIter(me)) == 0) | |
477 | goto done; | |
478 | while ((k = PyIter_Next(i)) != 0) { | |
479 | z = 0; | |
480 | if ((v = PyObject_GetItem(me, k)) == 0 || | |
481 | (z = Py_BuildValue("(OO)", k, v)) == 0 || | |
482 | PyList_Append(l, z)) | |
483 | err = -1; | |
484 | Py_DECREF(k); Py_XDECREF(v); Py_XDECREF(z); | |
485 | if (err) goto done; | |
486 | } | |
487 | if (PyErr_Occurred()) goto done; | |
488 | rc = l; l = 0; | |
489 | done: | |
490 | Py_XDECREF(l); Py_XDECREF(i); | |
491 | return (rc); | |
492 | } | |
493 | ||
494 | PyObject *gmapmeth_iterkeys(PyObject *me, PyObject *arg) | |
495 | { | |
496 | if (!PyArg_ParseTuple(arg, ":iterkeys")) return (0); | |
497 | return (PyObject_GetIter(me)); | |
498 | } | |
499 | ||
500 | PyObject *gmapmeth_itervalues(PyObject *me, PyObject *arg) | |
501 | { | |
502 | PyObject *i; | |
503 | iter_pyobj *ii; | |
504 | ||
505 | if (!PyArg_ParseTuple(arg, ":itervalues") || | |
506 | (i = PyObject_GetIter(me)) == 0) | |
507 | return (0); | |
508 | ii = PyObject_NEW(iter_pyobj, valiter_pytype); | |
509 | ii->map = me; Py_INCREF(me); | |
510 | ii->i = i; | |
511 | return ((PyObject *)ii); | |
512 | } | |
513 | ||
514 | PyObject *gmapmeth_iteritems(PyObject *me, PyObject *arg) | |
515 | { | |
516 | PyObject *i; | |
517 | iter_pyobj *ii; | |
518 | ||
519 | if (!PyArg_ParseTuple(arg, ":iteritems") || | |
520 | (i = PyObject_GetIter(me)) == 0) | |
521 | return (0); | |
522 | ii = PyObject_NEW(iter_pyobj, itemiter_pytype); | |
523 | ii->map = me; Py_INCREF(me); | |
524 | ii->i = i; | |
525 | return ((PyObject *)ii); | |
526 | } | |
527 | ||
528 | PyObject *gmapmeth_clear(PyObject *me, PyObject *arg) | |
529 | { | |
530 | PyObject *i = 0, *k = 0, *rc = 0; | |
531 | ||
532 | if (!PyArg_ParseTuple(arg, ":clear") || | |
533 | (i = PyObject_GetIter(me)) == 0) | |
534 | goto end; | |
535 | while ((k = PyIter_Next(i)) != 0) { | |
536 | PyObject_DelItem(me, k); | |
537 | Py_DECREF(k); | |
538 | } | |
539 | if (PyErr_Occurred()) goto end; | |
540 | rc = me; Py_INCREF(me); | |
541 | end: | |
542 | Py_XDECREF(i); | |
543 | return (rc); | |
544 | } | |
545 | ||
546 | static char *def_kwlist[] = { "key", "default", 0 }; | |
547 | ||
548 | PyObject *gmapmeth_get(PyObject *me, PyObject *arg, PyObject *kw) | |
549 | { | |
550 | PyObject *k, *def = Py_None, *v; | |
551 | ||
552 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:get", def_kwlist, &k, &def)) | |
553 | return (0); | |
554 | if ((v = PyObject_GetItem(me, k)) != 0) return (v); | |
555 | PyErr_Clear(); | |
556 | RETURN_OBJ(def); | |
557 | } | |
558 | ||
559 | PyObject *gmapmeth_setdefault(PyObject *me, PyObject *arg, PyObject *kw) | |
560 | { | |
561 | PyObject *k, *def = Py_None, *v; | |
562 | ||
563 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:setdefault", | |
564 | def_kwlist, &k, &def)) | |
565 | return (0); | |
566 | if ((v = PyObject_GetItem(me, k)) != 0) return (v); | |
567 | PyErr_Clear(); | |
568 | if (PyObject_SetItem(me, k, def)) return (0); | |
569 | RETURN_OBJ(def); | |
570 | } | |
571 | ||
572 | PyObject *gmapmeth_pop(PyObject *me, PyObject *arg, PyObject *kw) | |
573 | { | |
574 | PyObject *k, *def = 0, *v; | |
575 | ||
576 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:pop", def_kwlist, &k, &def)) | |
577 | return (0); | |
578 | if ((v = PyObject_GetItem(me, k)) != 0) { | |
579 | PyObject_DelItem(me, k); | |
580 | return (v); | |
581 | } | |
582 | PyErr_Clear(); | |
583 | RETURN_OBJ(def); | |
584 | } | |
585 | ||
586 | PyObject *gmapmeth_update(PyObject *me, PyObject *arg) | |
587 | { | |
588 | PyObject *map, *i = 0, *k, *v, *rc = 0; | |
589 | int err = 0; | |
590 | ||
591 | if (!PyArg_ParseTuple(arg, "O:update", &map) || | |
592 | (i = PyObject_GetIter(map)) == 0) | |
593 | goto end; | |
594 | while ((k = PyIter_Next(i)) != 0) { | |
595 | if ((v = PyObject_GetItem(map, k)) == 0 || | |
596 | PyObject_SetItem(me, k, v)) | |
597 | err = -1; | |
598 | Py_DECREF(k); Py_XDECREF(v); | |
599 | if (err) goto end; | |
600 | } | |
601 | if (PyErr_Occurred()) goto end; | |
602 | rc = me; Py_INCREF(me); | |
603 | end: | |
604 | Py_XDECREF(i); | |
605 | return (rc); | |
606 | } | |
607 | ||
608 | PyObject *gmapmeth_popitem(PyObject *me, PyObject *arg) | |
609 | { | |
610 | PyObject *i = 0, *k = 0, *v = 0, *rc = 0; | |
611 | ||
612 | if (!PyArg_ParseTuple(arg, ":popitem") || | |
613 | (i = PyObject_GetIter(me))) | |
614 | goto end; | |
615 | if ((k = PyIter_Next(i)) == 0) { | |
616 | if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty"); | |
617 | goto end; | |
618 | } | |
619 | if ((v = PyObject_GetItem(me, k)) == 0 || | |
620 | PyObject_DelItem(me, k)) | |
621 | goto end; | |
622 | rc = Py_BuildValue("(OO)", k, v); | |
623 | end: | |
624 | Py_XDECREF(i); Py_XDECREF(k); Py_XDECREF(v); | |
625 | return (rc); | |
626 | } | |
627 | ||
628 | PyMethodDef gmap_pymethods[] = { | |
629 | GMAP_METHODS | |
630 | { 0 } | |
631 | }; | |
632 | ||
633 | /*----- Initialization ----------------------------------------------------*/ | |
634 | ||
8ca23175 | 635 | void util_pyinit(void) |
68ec53f3 MW |
636 | { |
637 | INITTYPE(itemiter, root); | |
638 | INITTYPE(valiter, root); | |
639 | } | |
640 | ||
8ca23175 | 641 | void util_pyinsert(PyObject *mod) |
68ec53f3 MW |
642 | { |
643 | INSERT("ItemIter", itemiter_pytype); | |
644 | INSERT("ValueIter", valiter_pytype); | |
645 | } | |
646 | ||
647 | /*----- That's all, folks -------------------------------------------------*/ |