5 * Miscellaneous utilities (not Catacomb-specific)
7 * (c) 2005 Straylight/Edgeware
10 /*----- Licensing notice --------------------------------------------------*
12 * This file is part of the Python interface to Catacomb.
14 * Catacomb/Python is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
19 * Catacomb/Python is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with Catacomb/Python; if not, write to the Free Software Foundation,
26 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
29 /*----- Header files ------------------------------------------------------*/
31 #include "catacomb-python.h"
33 /*----- Conversions -------------------------------------------------------*/
36 PyObject *getu##n(uint##n w) \
39 return (PyInt_FromLong(w)); \
41 return (PyLong_FromUnsignedLong(w)); \
45 PyObject *getbool(int b)
51 PyObject *abstract_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw)
53 PyErr_SetString(PyExc_TypeError, "can't instantiate this class");
57 int convulong(PyObject *o, void *pp)
60 unsigned long *p = pp;
65 if (i < 0) TYERR("must be nonnegative");
68 if ((t = PyNumber_Long(o)) == 0) goto end;
69 *p = PyLong_AsUnsignedLong(t);
71 if (PyErr_Occurred()) goto end;
79 int convu##n(PyObject *o, void *pp) \
84 if (!convulong(o, &u)) goto end; \
85 if (u > MASK##n) TYERR("out of range"); \
93 int convuint(PyObject *o, void *pp)
98 if (!convulong(o, &u)) goto end;
99 if (u > UINT_MAX) TYERR("out of range");
106 int convmpw(PyObject *o, void *pp)
111 if (!convulong(o, &u)) goto end;
112 if (u > MPW_MAX) TYERR("out of range");
119 int convszt(PyObject *o, void *pp)
124 if (!convulong(o, &u)) goto end;
125 if (u > ~(size_t)0) TYERR("out of range");
132 int convbool(PyObject *o, void *pp)
134 *(int *)pp = PyObject_IsTrue(o);
138 /*----- Type messing ------------------------------------------------------*/
140 static const PyTypeObject emptytype = { 0 };
142 void *newtype(PyTypeObject *metaty,
143 const PyTypeObject *skel,
146 PyHeapTypeObject *ty =
147 (PyHeapTypeObject *)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty, 0));
148 if (!skel) skel = &emptytype;
149 memcpy(ty, skel, sizeof(*skel));
150 if (ty->type.tp_base) Py_INCREF(ty->type.tp_base);
151 #define COPY(blah) do { \
152 if (ty->type.tp_as_##blah) { \
153 memcpy(&ty->as_##blah, \
154 ty->type.tp_as_##blah, \
155 sizeof(ty->as_##blah)); \
156 ty->type.tp_as_##blah = &ty->as_##blah; \
165 ty->name = PyString_FromString(name);
166 else if (ty->type.tp_name)
167 ty->name = PyString_FromString(ty->type.tp_name);
169 ty->type.tp_name = PyString_AS_STRING(ty->name);
170 PyObject_INIT(&ty->type, metaty);
175 PyTypeObject *inittype(PyTypeObject *tyskel)
177 PyTypeObject *ty = newtype(&PyType_Type, tyskel, 0);
178 ty->tp_flags |= Py_TPFLAGS_HEAPTYPE;
183 /*----- Constants ---------------------------------------------------------*/
185 void setconstants(PyObject *mod, const struct nameval *c)
190 if (c->value > LONG_MAX)
191 x = PyLong_FromUnsignedLong(c->value);
193 x = PyInt_FromLong(c->value);
194 PyModule_AddObject(mod, (/*unconst*/ char *)c->name, x);
199 /*----- Building method tables --------------------------------------------*/
201 DA_DECL(method_v, PyMethodDef);
202 static method_v global_pymethods = DA_INIT;
203 void addmethods(const PyMethodDef *m)
207 for (n = 0; m[n].ml_name; n++);
208 DA_ENSURE(&global_pymethods, n);
209 memcpy(DA(&global_pymethods) + DA_LEN(&global_pymethods),
211 DA_EXTEND(&global_pymethods, n);
214 PyMethodDef *donemethods(void)
216 static const PyMethodDef mzero = { 0 };
217 DA_PUSH(&global_pymethods, mzero);
218 return (DA(&global_pymethods));
221 /*----- Exceptions --------------------------------------------------------*/
223 PyObject * mkexc(PyObject *mod, PyObject *base,
224 const char *name, PyMethodDef *mm)
226 PyObject *nameobj = 0;
232 if ((nameobj = PyString_FromFormat("%s.%s",
233 PyModule_GetName(mod),
235 (dict = PyDict_New()) == 0 ||
236 (exc = PyErr_NewException(PyString_AS_STRING(nameobj),
241 while (mm->ml_name) {
242 if ((func = PyCFunction_NewEx(mm, 0, mod)) == 0 ||
243 (meth = PyMethod_New(func, 0, exc)) == 0 ||
244 PyDict_SetItemString(dict, mm->ml_name, meth))
246 Py_DECREF(func); func = 0;
247 Py_DECREF(meth); meth = 0;
265 /*----- Generic dictionary methods ----------------------------------------*/
267 static PyTypeObject *itemiter_pytype, *valiter_pytype;
269 typedef struct iter_pyobj {
274 #define ITER_MAP(o) (((iter_pyobj *)(o))->map)
275 #define ITER_I(o) (((iter_pyobj *)(o))->i)
277 static void iter_pydealloc(PyObject *me)
278 { Py_DECREF(ITER_MAP(me)); Py_DECREF(ITER_I(me)); FREEOBJ(me); }
280 static PyObject *itemiter_pynext(PyObject *me)
282 PyObject *k = 0, *v = 0, *rc = 0;
284 if ((k = PyIter_Next(ITER_I(me))) != 0 &&
285 (v = PyObject_GetItem(ITER_MAP(me), k)) != 0)
286 rc = Py_BuildValue("(OO)", k, v);
287 Py_XDECREF(k); Py_XDECREF(v);
291 static PyTypeObject itemiter_pytype_skel = {
292 PyObject_HEAD_INIT(0) 0, /* Header */
293 "ItemIter", /* @tp_name@ */
294 sizeof(iter_pyobj), /* @tp_basicsize@ */
295 0, /* @tp_itemsize@ */
297 iter_pydealloc, /* @tp_dealloc@ */
299 0, /* @tp_getattr@ */
300 0, /* @tp_setattr@ */
301 0, /* @tp_compare@ */
303 0, /* @tp_as_number@ */
304 0, /* @tp_as_sequence@ */
305 0, /* @tp_as_mapping@ */
309 0, /* @tp_getattro@ */
310 0, /* @tp_setattro@ */
311 0, /* @tp_as_buffer@ */
312 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
316 "Iterates over the items of a mapping.",
318 0, /* @tp_traverse@ */
320 0, /* @tp_richcompare@ */
321 0, /* @tp_weaklistoffset@ */
322 PyObject_SelfIter, /* @tp_iter@ */
323 itemiter_pynext, /* @tp_iternext@ */
324 0, /* @tp_methods@ */
325 0, /* @tp_members@ */
329 0, /* @tp_descr_get@ */
330 0, /* @tp_descr_set@ */
331 0, /* @tp_dictoffset@ */
333 PyType_GenericAlloc, /* @tp_alloc@ */
334 abstract_pynew, /* @tp_new@ */
339 static PyObject *valiter_pynext(PyObject *me)
341 PyObject *k = 0, *rc = 0;
343 if ((k = PyIter_Next(ITER_I(me))) != 0)
344 rc = PyObject_GetItem(ITER_MAP(me), k);
349 static PyTypeObject valiter_pytype_skel = {
350 PyObject_HEAD_INIT(0) 0, /* Header */
351 "ValueIter", /* @tp_name@ */
352 sizeof(iter_pyobj), /* @tp_basicsize@ */
353 0, /* @tp_itemsize@ */
355 iter_pydealloc, /* @tp_dealloc@ */
357 0, /* @tp_getattr@ */
358 0, /* @tp_setattr@ */
359 0, /* @tp_compare@ */
361 0, /* @tp_as_number@ */
362 0, /* @tp_as_sequence@ */
363 0, /* @tp_as_mapping@ */
367 0, /* @tp_getattro@ */
368 0, /* @tp_setattro@ */
369 0, /* @tp_as_buffer@ */
370 Py_TPFLAGS_DEFAULT | /* @tp_flags@ */
374 "Iterates over the items of a mapping.",
376 0, /* @tp_traverse@ */
378 0, /* @tp_richcompare@ */
379 0, /* @tp_weaklistoffset@ */
380 PyObject_SelfIter, /* @tp_iter@ */
381 valiter_pynext, /* @tp_iternext@ */
382 0, /* @tp_methods@ */
383 0, /* @tp_members@ */
387 0, /* @tp_descr_get@ */
388 0, /* @tp_descr_set@ */
389 0, /* @tp_dictoffset@ */
391 PyType_GenericAlloc, /* @tp_alloc@ */
392 abstract_pynew, /* @tp_new@ */
397 PySequenceMethods gmap_pysequence = {
403 0, /* @sq_ass_item@ */
404 0, /* @sq_ass_slice@ */
405 PyMapping_HasKey, /* @sq_contains@ */
406 0, /* @sq_inplace_concat@ */
407 0 /* @sq_inplace_repeat@ */
410 int gmap_pysize(PyObject *me)
412 PyObject *i = 0, *x = 0;
416 if ((i = PyObject_GetIter(me)) == 0) goto done;
417 while ((x = PyIter_Next(i)) != 0) { n++; Py_DECREF(x); x = 0; }
418 if (PyErr_Occurred()) goto done;
421 Py_XDECREF(i); Py_XDECREF(x);
425 PyObject *gmapmeth_has_key(PyObject *me, PyObject *arg)
428 if (!PyArg_ParseTuple(arg, "O:has_key", &k)) return (0);
429 return (getbool(PyMapping_HasKey(me, k)));
432 PyObject *gmapmeth_keys(PyObject *me, PyObject *arg)
434 PyObject *l = 0, *i = 0, *k, *rc = 0;
437 if (!PyArg_ParseTuple(arg, ":keys") ||
438 (l = PyList_New(0)) == 0 ||
439 (i = PyObject_GetIter(me)) == 0)
441 while ((k = PyIter_Next(i)) != 0)
442 { err = PyList_Append(l, k); Py_DECREF(k); if (err) goto done; }
443 if (PyErr_Occurred()) goto done;
446 Py_XDECREF(l); Py_XDECREF(i);
450 PyObject *gmapmeth_values(PyObject *me, PyObject *arg)
452 PyObject *l = 0, *i = 0, *k, *v, *rc = 0;
455 if (!PyArg_ParseTuple(arg, ":values") ||
456 (l = PyList_New(0)) == 0 ||
457 (i = PyObject_GetIter(me)) == 0)
459 while ((k = PyIter_Next(i)) != 0) {
460 if ((v = PyObject_GetItem(me, k)) == 0 ||
463 Py_DECREF(k); Py_XDECREF(v);
466 if (PyErr_Occurred()) goto done;
469 Py_XDECREF(l); Py_XDECREF(i);
473 PyObject *gmapmeth_items(PyObject *me, PyObject *arg)
475 PyObject *l = 0, *i = 0, *k, *v, *z, *rc = 0;
478 if (!PyArg_ParseTuple(arg, ":items") ||
479 (l = PyList_New(0)) == 0 ||
480 (i = PyObject_GetIter(me)) == 0)
482 while ((k = PyIter_Next(i)) != 0) {
484 if ((v = PyObject_GetItem(me, k)) == 0 ||
485 (z = Py_BuildValue("(OO)", k, v)) == 0 ||
488 Py_DECREF(k); Py_XDECREF(v); Py_XDECREF(z);
491 if (PyErr_Occurred()) goto done;
494 Py_XDECREF(l); Py_XDECREF(i);
498 PyObject *gmapmeth_iterkeys(PyObject *me, PyObject *arg)
500 if (!PyArg_ParseTuple(arg, ":iterkeys")) return (0);
501 return (PyObject_GetIter(me));
504 PyObject *gmapmeth_itervalues(PyObject *me, PyObject *arg)
509 if (!PyArg_ParseTuple(arg, ":itervalues") ||
510 (i = PyObject_GetIter(me)) == 0)
512 ii = PyObject_NEW(iter_pyobj, valiter_pytype);
513 ii->map = me; Py_INCREF(me);
515 return ((PyObject *)ii);
518 PyObject *gmapmeth_iteritems(PyObject *me, PyObject *arg)
523 if (!PyArg_ParseTuple(arg, ":iteritems") ||
524 (i = PyObject_GetIter(me)) == 0)
526 ii = PyObject_NEW(iter_pyobj, itemiter_pytype);
527 ii->map = me; Py_INCREF(me);
529 return ((PyObject *)ii);
532 PyObject *gmapmeth_clear(PyObject *me, PyObject *arg)
534 PyObject *i = 0, *k = 0, *rc = 0;
536 if (!PyArg_ParseTuple(arg, ":clear") ||
537 (i = PyObject_GetIter(me)) == 0)
539 while ((k = PyIter_Next(i)) != 0) {
540 PyObject_DelItem(me, k);
543 if (PyErr_Occurred()) goto end;
544 rc = me; Py_INCREF(me);
550 static char *def_kwlist[] = { "key", "default", 0 };
552 PyObject *gmapmeth_get(PyObject *me, PyObject *arg, PyObject *kw)
554 PyObject *k, *def = Py_None, *v;
556 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:get", def_kwlist, &k, &def))
558 if ((v = PyObject_GetItem(me, k)) != 0) return (v);
563 PyObject *gmapmeth_setdefault(PyObject *me, PyObject *arg, PyObject *kw)
565 PyObject *k, *def = Py_None, *v;
567 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:setdefault",
568 def_kwlist, &k, &def))
570 if ((v = PyObject_GetItem(me, k)) != 0) return (v);
572 if (PyObject_SetItem(me, k, def)) return (0);
576 PyObject *gmapmeth_pop(PyObject *me, PyObject *arg, PyObject *kw)
578 PyObject *k, *def = 0, *v;
580 if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO:pop", def_kwlist, &k, &def))
582 if ((v = PyObject_GetItem(me, k)) != 0) {
583 PyObject_DelItem(me, k);
590 PyObject *gmapmeth_update(PyObject *me, PyObject *arg)
592 PyObject *map, *i = 0, *k, *v, *rc = 0;
595 if (!PyArg_ParseTuple(arg, "O:update", &map) ||
596 (i = PyObject_GetIter(map)) == 0)
598 while ((k = PyIter_Next(i)) != 0) {
599 if ((v = PyObject_GetItem(map, k)) == 0 ||
600 PyObject_SetItem(me, k, v))
602 Py_DECREF(k); Py_XDECREF(v);
605 if (PyErr_Occurred()) goto end;
606 rc = me; Py_INCREF(me);
612 PyObject *gmapmeth_popitem(PyObject *me, PyObject *arg)
614 PyObject *i = 0, *k = 0, *v = 0, *rc = 0;
616 if (!PyArg_ParseTuple(arg, ":popitem") ||
617 (i = PyObject_GetIter(me)))
619 if ((k = PyIter_Next(i)) == 0) {
620 if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty");
623 if ((v = PyObject_GetItem(me, k)) == 0 ||
624 PyObject_DelItem(me, k))
626 rc = Py_BuildValue("(OO)", k, v);
628 Py_XDECREF(i); Py_XDECREF(k); Py_XDECREF(v);
632 PyMethodDef gmap_pymethods[] = {
637 /*----- Initialization ----------------------------------------------------*/
641 INITTYPE(itemiter, root);
642 INITTYPE(valiter, root);
645 void util_insert(PyObject *mod)
647 INSERT("ItemIter", itemiter_pytype);
648 INSERT("ValueIter", valiter_pytype);
651 /*----- That's all, folks -------------------------------------------------*/