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 | { | |
35ac67cc | 173 | static PyObject *modname = 0; |
68ec53f3 | 174 | PyTypeObject *ty = newtype(&PyType_Type, tyskel, 0); |
35ac67cc | 175 | if (!modname) modname = PyString_FromString("catacomb"); |
68ec53f3 MW |
176 | ty->tp_flags |= Py_TPFLAGS_HEAPTYPE; |
177 | PyType_Ready(ty); | |
35ac67cc | 178 | PyDict_SetItemString(ty->tp_dict, "__module__", modname); |
68ec53f3 MW |
179 | return (ty); |
180 | } | |
181 | ||
182 | /*----- Constants ---------------------------------------------------------*/ | |
183 | ||
184 | void setconstants(PyObject *mod, const struct nameval *c) | |
185 | { | |
186 | PyObject *x; | |
187 | ||
188 | while (c->name) { | |
189 | if (c->value > LONG_MAX) | |
190 | x = PyLong_FromUnsignedLong(c->value); | |
191 | else | |
192 | x = PyInt_FromLong(c->value); | |
193 | PyModule_AddObject(mod, (/*unconst*/ char *)c->name, x); | |
194 | c++; | |
195 | } | |
196 | } | |
197 | ||
198 | /*----- Building method tables --------------------------------------------*/ | |
199 | ||
200 | DA_DECL(method_v, PyMethodDef); | |
201 | static method_v global_pymethods = DA_INIT; | |
202 | void addmethods(const PyMethodDef *m) | |
203 | { | |
204 | size_t n; | |
205 | ||
206 | for (n = 0; m[n].ml_name; n++); | |
207 | DA_ENSURE(&global_pymethods, n); | |
208 | memcpy(DA(&global_pymethods) + DA_LEN(&global_pymethods), | |
209 | m, n * sizeof(*m)); | |
210 | DA_EXTEND(&global_pymethods, n); | |
211 | } | |
212 | ||
213 | PyMethodDef *donemethods(void) | |
214 | { | |
215 | static const PyMethodDef mzero = { 0 }; | |
216 | DA_PUSH(&global_pymethods, mzero); | |
217 | return (DA(&global_pymethods)); | |
218 | } | |
219 | ||
220 | /*----- Exceptions --------------------------------------------------------*/ | |
221 | ||
222 | PyObject * mkexc(PyObject *mod, PyObject *base, | |
223 | const char *name, PyMethodDef *mm) | |
224 | { | |
225 | PyObject *nameobj = 0; | |
226 | PyObject *dict = 0; | |
227 | PyObject *exc = 0; | |
228 | PyObject *func = 0; | |
229 | PyObject *meth = 0; | |
230 | ||
231 | if ((nameobj = PyString_FromFormat("%s.%s", | |
232 | PyModule_GetName(mod), | |
233 | name)) == 0 || | |
234 | (dict = PyDict_New()) == 0 || | |
235 | (exc = PyErr_NewException(PyString_AS_STRING(nameobj), | |
236 | base, dict)) == 0) | |
237 | goto fail; | |
238 | ||
239 | if (mm) { | |
240 | while (mm->ml_name) { | |
241 | if ((func = PyCFunction_NewEx(mm, 0, mod)) == 0 || | |
242 | (meth = PyMethod_New(func, 0, exc)) == 0 || | |
243 | PyDict_SetItemString(dict, mm->ml_name, meth)) | |
244 | goto fail; | |
245 | Py_DECREF(func); func = 0; | |
246 | Py_DECREF(meth); meth = 0; | |
247 | mm++; | |
248 | } | |
249 | } | |
250 | ||
251 | done: | |
252 | Py_XDECREF(nameobj); | |
253 | Py_XDECREF(dict); | |
254 | return (exc); | |
255 | ||
256 | fail: | |
257 | Py_XDECREF(exc); | |
258 | Py_XDECREF(func); | |
259 | Py_XDECREF(meth); | |
260 | exc = 0; | |
261 | goto done; | |
262 | } | |
263 | ||
264 | /*----- Generic dictionary methods ----------------------------------------*/ | |
265 | ||
266 | static PyTypeObject *itemiter_pytype, *valiter_pytype; | |
267 | ||
268 | typedef struct iter_pyobj { | |
269 | PyObject_HEAD | |
270 | PyObject *map; | |
271 | PyObject *i; | |
272 | } iter_pyobj; | |
273 | #define ITER_MAP(o) (((iter_pyobj *)(o))->map) | |
274 | #define ITER_I(o) (((iter_pyobj *)(o))->i) | |
275 | ||
276 | static void iter_pydealloc(PyObject *me) | |
277 | { Py_DECREF(ITER_MAP(me)); Py_DECREF(ITER_I(me)); FREEOBJ(me); } | |
278 | ||
279 | static PyObject *itemiter_pynext(PyObject *me) | |
280 | { | |
281 | PyObject *k = 0, *v = 0, *rc = 0; | |
0b1eafbf | 282 | |
68ec53f3 MW |
283 | if ((k = PyIter_Next(ITER_I(me))) != 0 && |
284 | (v = PyObject_GetItem(ITER_MAP(me), k)) != 0) | |
285 | rc = Py_BuildValue("(OO)", k, v); | |
286 | Py_XDECREF(k); Py_XDECREF(v); | |
287 | return (rc); | |
288 | } | |
289 | ||
290 | static PyTypeObject itemiter_pytype_skel = { | |
291 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
292 | "ItemIter", /* @tp_name@ */ | |
293 | sizeof(iter_pyobj), /* @tp_basicsize@ */ | |
294 | 0, /* @tp_itemsize@ */ | |
295 | ||
296 | iter_pydealloc, /* @tp_dealloc@ */ | |
297 | 0, /* @tp_print@ */ | |
298 | 0, /* @tp_getattr@ */ | |
299 | 0, /* @tp_setattr@ */ | |
300 | 0, /* @tp_compare@ */ | |
301 | 0, /* @tp_repr@ */ | |
302 | 0, /* @tp_as_number@ */ | |
303 | 0, /* @tp_as_sequence@ */ | |
304 | 0, /* @tp_as_mapping@ */ | |
305 | 0, /* @tp_hash@ */ | |
306 | 0, /* @tp_call@ */ | |
307 | 0, /* @tp_str@ */ | |
308 | 0, /* @tp_getattro@ */ | |
309 | 0, /* @tp_setattro@ */ | |
310 | 0, /* @tp_as_buffer@ */ | |
311 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
312 | Py_TPFLAGS_BASETYPE, | |
313 | ||
314 | /* @tp_doc@ */ | |
315 | "Iterates over the items of a mapping.", | |
316 | ||
317 | 0, /* @tp_traverse@ */ | |
318 | 0, /* @tp_clear@ */ | |
319 | 0, /* @tp_richcompare@ */ | |
320 | 0, /* @tp_weaklistoffset@ */ | |
321 | PyObject_SelfIter, /* @tp_iter@ */ | |
322 | itemiter_pynext, /* @tp_iternext@ */ | |
323 | 0, /* @tp_methods@ */ | |
324 | 0, /* @tp_members@ */ | |
325 | 0, /* @tp_getset@ */ | |
326 | 0, /* @tp_base@ */ | |
327 | 0, /* @tp_dict@ */ | |
328 | 0, /* @tp_descr_get@ */ | |
329 | 0, /* @tp_descr_set@ */ | |
330 | 0, /* @tp_dictoffset@ */ | |
331 | 0, /* @tp_init@ */ | |
332 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
333 | abstract_pynew, /* @tp_new@ */ | |
334 | 0, /* @tp_free@ */ | |
335 | 0 /* @tp_is_gc@ */ | |
336 | }; | |
337 | ||
338 | static PyObject *valiter_pynext(PyObject *me) | |
339 | { | |
340 | PyObject *k = 0, *rc = 0; | |
0b1eafbf | 341 | |
68ec53f3 MW |
342 | if ((k = PyIter_Next(ITER_I(me))) != 0) |
343 | rc = PyObject_GetItem(ITER_MAP(me), k); | |
344 | Py_XDECREF(k); | |
345 | return (rc); | |
346 | } | |
347 | ||
348 | static PyTypeObject valiter_pytype_skel = { | |
349 | PyObject_HEAD_INIT(0) 0, /* Header */ | |
350 | "ValueIter", /* @tp_name@ */ | |
351 | sizeof(iter_pyobj), /* @tp_basicsize@ */ | |
352 | 0, /* @tp_itemsize@ */ | |
353 | ||
354 | iter_pydealloc, /* @tp_dealloc@ */ | |
355 | 0, /* @tp_print@ */ | |
356 | 0, /* @tp_getattr@ */ | |
357 | 0, /* @tp_setattr@ */ | |
358 | 0, /* @tp_compare@ */ | |
359 | 0, /* @tp_repr@ */ | |
360 | 0, /* @tp_as_number@ */ | |
361 | 0, /* @tp_as_sequence@ */ | |
362 | 0, /* @tp_as_mapping@ */ | |
363 | 0, /* @tp_hash@ */ | |
364 | 0, /* @tp_call@ */ | |
365 | 0, /* @tp_str@ */ | |
366 | 0, /* @tp_getattro@ */ | |
367 | 0, /* @tp_setattro@ */ | |
368 | 0, /* @tp_as_buffer@ */ | |
369 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ | |
370 | Py_TPFLAGS_BASETYPE, | |
371 | ||
372 | /* @tp_doc@ */ | |
373 | "Iterates over the items of a mapping.", | |
374 | ||
375 | 0, /* @tp_traverse@ */ | |
376 | 0, /* @tp_clear@ */ | |
377 | 0, /* @tp_richcompare@ */ | |
378 | 0, /* @tp_weaklistoffset@ */ | |
379 | PyObject_SelfIter, /* @tp_iter@ */ | |
380 | valiter_pynext, /* @tp_iternext@ */ | |
381 | 0, /* @tp_methods@ */ | |
382 | 0, /* @tp_members@ */ | |
383 | 0, /* @tp_getset@ */ | |
384 | 0, /* @tp_base@ */ | |
385 | 0, /* @tp_dict@ */ | |
386 | 0, /* @tp_descr_get@ */ | |
387 | 0, /* @tp_descr_set@ */ | |
388 | 0, /* @tp_dictoffset@ */ | |
389 | 0, /* @tp_init@ */ | |
390 | PyType_GenericAlloc, /* @tp_alloc@ */ | |
391 | abstract_pynew, /* @tp_new@ */ | |
392 | 0, /* @tp_free@ */ | |
393 | 0 /* @tp_is_gc@ */ | |
394 | }; | |
395 | ||
396 | PySequenceMethods gmap_pysequence = { | |
397 | 0, /* @sq_length@ */ | |
398 | 0, /* @sq_concat@ */ | |
399 | 0, /* @sq_repeat@ */ | |
400 | 0, /* @sq_item@ */ | |
401 | 0, /* @sq_slice@ */ | |
402 | 0, /* @sq_ass_item@ */ | |
403 | 0, /* @sq_ass_slice@ */ | |
404 | PyMapping_HasKey, /* @sq_contains@ */ | |
405 | 0, /* @sq_inplace_concat@ */ | |
406 | 0 /* @sq_inplace_repeat@ */ | |
0b1eafbf | 407 | }; |
68ec53f3 MW |
408 | |
409 | int gmap_pysize(PyObject *me) | |
410 | { | |
411 | PyObject *i = 0, *x = 0; | |
412 | int rc = -1; | |
413 | int n = 0; | |
414 | ||
415 | if ((i = PyObject_GetIter(me)) == 0) goto done; | |
416 | while ((x = PyIter_Next(i)) != 0) { n++; Py_DECREF(x); x = 0; } | |
417 | if (PyErr_Occurred()) goto done; | |
418 | rc = n; | |
419 | done: | |
420 | Py_XDECREF(i); Py_XDECREF(x); | |
421 | return (rc); | |
422 | } | |
423 | ||
424 | PyObject *gmapmeth_has_key(PyObject *me, PyObject *arg) | |
425 | { | |
426 | PyObject *k; | |
427 | if (!PyArg_ParseTuple(arg, "O:has_key", &k)) return (0); | |
428 | return (getbool(PyMapping_HasKey(me, k))); | |
429 | } | |
430 | ||
431 | PyObject *gmapmeth_keys(PyObject *me, PyObject *arg) | |
432 | { | |
433 | PyObject *l = 0, *i = 0, *k, *rc = 0; | |
434 | int err; | |
435 | ||
436 | if (!PyArg_ParseTuple(arg, ":keys") || | |
437 | (l = PyList_New(0)) == 0 || | |
438 | (i = PyObject_GetIter(me)) == 0) | |
439 | goto done; | |
440 | while ((k = PyIter_Next(i)) != 0) | |
441 | { err = PyList_Append(l, k); Py_DECREF(k); if (err) goto done; } | |
442 | if (PyErr_Occurred()) goto done; | |
443 | rc = l; l = 0; | |
444 | done: | |
445 | Py_XDECREF(l); Py_XDECREF(i); | |
446 | return (rc); | |
447 | } | |
448 | ||
449 | PyObject *gmapmeth_values(PyObject *me, PyObject *arg) | |
450 | { | |
451 | PyObject *l = 0, *i = 0, *k, *v, *rc = 0; | |
452 | int err = 0; | |
453 | ||
454 | if (!PyArg_ParseTuple(arg, ":values") || | |
455 | (l = PyList_New(0)) == 0 || | |
456 | (i = PyObject_GetIter(me)) == 0) | |
457 | goto done; | |
0b1eafbf | 458 | while ((k = PyIter_Next(i)) != 0) { |
68ec53f3 MW |
459 | if ((v = PyObject_GetItem(me, k)) == 0 || |
460 | PyList_Append(l, v)) | |
461 | err = -1; | |
462 | Py_DECREF(k); Py_XDECREF(v); | |
463 | if (err) goto done; | |
464 | } | |
465 | if (PyErr_Occurred()) goto done; | |
466 | rc = l; l = 0; | |
467 | done: | |
468 | Py_XDECREF(l); Py_XDECREF(i); | |
469 | return (rc); | |
470 | } | |
471 | ||
472 | PyObject *gmapmeth_items(PyObject *me, PyObject *arg) | |
473 | { | |
474 | PyObject *l = 0, *i = 0, *k, *v, *z, *rc = 0; | |
475 | int err = 0; | |
476 | ||
477 | if (!PyArg_ParseTuple(arg, ":items") || | |
478 | (l = PyList_New(0)) == 0 || | |
479 | (i = PyObject_GetIter(me)) == 0) | |
480 | goto done; | |
481 | while ((k = PyIter_Next(i)) != 0) { | |
482 | z = 0; | |
483 | if ((v = PyObject_GetItem(me, k)) == 0 || | |
484 | (z = Py_BuildValue("(OO)", k, v)) == 0 || | |
485 | PyList_Append(l, z)) | |
486 | err = -1; | |
487 | Py_DECREF(k); Py_XDECREF(v); Py_XDECREF(z); | |
488 | if (err) goto done; | |
489 | } | |
490 | if (PyErr_Occurred()) goto done; | |
491 | rc = l; l = 0; | |
492 | done: | |
493 | Py_XDECREF(l); Py_XDECREF(i); | |
494 | return (rc); | |
495 | } | |
496 | ||
497 | PyObject *gmapmeth_iterkeys(PyObject *me, PyObject *arg) | |
498 | { | |
499 | if (!PyArg_ParseTuple(arg, ":iterkeys")) return (0); | |
500 | return (PyObject_GetIter(me)); | |
501 | } | |
502 | ||
503 | PyObject *gmapmeth_itervalues(PyObject *me, PyObject *arg) | |
504 | { | |
505 | PyObject *i; | |
506 | iter_pyobj *ii; | |
507 | ||
508 | if (!PyArg_ParseTuple(arg, ":itervalues") || | |
509 | (i = PyObject_GetIter(me)) == 0) | |
510 | return (0); | |
511 | ii = PyObject_NEW(iter_pyobj, valiter_pytype); | |
512 | ii->map = me; Py_INCREF(me); | |
513 | ii->i = i; | |
514 | return ((PyObject *)ii); | |
515 | } | |
516 | ||
517 | PyObject *gmapmeth_iteritems(PyObject *me, PyObject *arg) | |
518 | { | |
519 | PyObject *i; | |
520 | iter_pyobj *ii; | |
521 | ||
522 | if (!PyArg_ParseTuple(arg, ":iteritems") || | |
523 | (i = PyObject_GetIter(me)) == 0) | |
524 | return (0); | |
525 | ii = PyObject_NEW(iter_pyobj, itemiter_pytype); | |
526 | ii->map = me; Py_INCREF(me); | |
527 | ii->i = i; | |
528 | return ((PyObject *)ii); | |
529 | } | |
530 | ||
531 | PyObject *gmapmeth_clear(PyObject *me, PyObject *arg) | |
532 | { | |
533 | PyObject *i = 0, *k = 0, *rc = 0; | |
534 | ||
535 | if (!PyArg_ParseTuple(arg, ":clear") || | |
536 | (i = PyObject_GetIter(me)) == 0) | |
537 | goto end; | |
538 | while ((k = PyIter_Next(i)) != 0) { | |
539 | PyObject_DelItem(me, k); | |
540 | Py_DECREF(k); | |
541 | } | |
542 | if (PyErr_Occurred()) goto end; | |
543 | rc = me; Py_INCREF(me); | |
544 | end: | |
545 | Py_XDECREF(i); | |
546 | return (rc); | |
547 | } | |
548 | ||
549 | static char *def_kwlist[] = { "key", "default", 0 }; | |
550 | ||
551 | PyObject *gmapmeth_get(PyObject *me, PyObject *arg, PyObject *kw) | |
552 | { | |
553 | PyObject *k, *def = Py_None, *v; | |
554 | ||
555 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:get", def_kwlist, &k, &def)) | |
556 | return (0); | |
557 | if ((v = PyObject_GetItem(me, k)) != 0) return (v); | |
558 | PyErr_Clear(); | |
559 | RETURN_OBJ(def); | |
560 | } | |
561 | ||
562 | PyObject *gmapmeth_setdefault(PyObject *me, PyObject *arg, PyObject *kw) | |
563 | { | |
564 | PyObject *k, *def = Py_None, *v; | |
565 | ||
566 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:setdefault", | |
567 | def_kwlist, &k, &def)) | |
568 | return (0); | |
569 | if ((v = PyObject_GetItem(me, k)) != 0) return (v); | |
570 | PyErr_Clear(); | |
571 | if (PyObject_SetItem(me, k, def)) return (0); | |
572 | RETURN_OBJ(def); | |
573 | } | |
574 | ||
575 | PyObject *gmapmeth_pop(PyObject *me, PyObject *arg, PyObject *kw) | |
576 | { | |
577 | PyObject *k, *def = 0, *v; | |
578 | ||
579 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:pop", def_kwlist, &k, &def)) | |
580 | return (0); | |
581 | if ((v = PyObject_GetItem(me, k)) != 0) { | |
582 | PyObject_DelItem(me, k); | |
583 | return (v); | |
584 | } | |
585 | PyErr_Clear(); | |
586 | RETURN_OBJ(def); | |
587 | } | |
588 | ||
589 | PyObject *gmapmeth_update(PyObject *me, PyObject *arg) | |
590 | { | |
591 | PyObject *map, *i = 0, *k, *v, *rc = 0; | |
592 | int err = 0; | |
593 | ||
594 | if (!PyArg_ParseTuple(arg, "O:update", &map) || | |
595 | (i = PyObject_GetIter(map)) == 0) | |
596 | goto end; | |
597 | while ((k = PyIter_Next(i)) != 0) { | |
598 | if ((v = PyObject_GetItem(map, k)) == 0 || | |
599 | PyObject_SetItem(me, k, v)) | |
600 | err = -1; | |
601 | Py_DECREF(k); Py_XDECREF(v); | |
602 | if (err) goto end; | |
603 | } | |
604 | if (PyErr_Occurred()) goto end; | |
605 | rc = me; Py_INCREF(me); | |
606 | end: | |
607 | Py_XDECREF(i); | |
608 | return (rc); | |
609 | } | |
610 | ||
611 | PyObject *gmapmeth_popitem(PyObject *me, PyObject *arg) | |
612 | { | |
613 | PyObject *i = 0, *k = 0, *v = 0, *rc = 0; | |
614 | ||
615 | if (!PyArg_ParseTuple(arg, ":popitem") || | |
616 | (i = PyObject_GetIter(me))) | |
617 | goto end; | |
618 | if ((k = PyIter_Next(i)) == 0) { | |
619 | if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty"); | |
620 | goto end; | |
621 | } | |
622 | if ((v = PyObject_GetItem(me, k)) == 0 || | |
623 | PyObject_DelItem(me, k)) | |
624 | goto end; | |
625 | rc = Py_BuildValue("(OO)", k, v); | |
626 | end: | |
627 | Py_XDECREF(i); Py_XDECREF(k); Py_XDECREF(v); | |
628 | return (rc); | |
629 | } | |
630 | ||
631 | PyMethodDef gmap_pymethods[] = { | |
632 | GMAP_METHODS | |
633 | { 0 } | |
634 | }; | |
635 | ||
636 | /*----- Initialization ----------------------------------------------------*/ | |
637 | ||
8ca23175 | 638 | void util_pyinit(void) |
68ec53f3 MW |
639 | { |
640 | INITTYPE(itemiter, root); | |
641 | INITTYPE(valiter, root); | |
642 | } | |
643 | ||
8ca23175 | 644 | void util_pyinsert(PyObject *mod) |
68ec53f3 MW |
645 | { |
646 | INSERT("ItemIter", itemiter_pytype); | |
647 | INSERT("ValueIter", valiter_pytype); | |
648 | } | |
649 | ||
650 | /*----- That's all, folks -------------------------------------------------*/ |