3 * Miscellaneous utilities (not Catacomb-specific)
5 * (c) 2005 Straylight/Edgeware
8 /*----- Licensing notice --------------------------------------------------*
10 * This file is part of the Python interface to Catacomb.
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.
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.
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.
27 /*----- Header files ------------------------------------------------------*/
29 #include "catacomb-python.h"
31 /*----- Conversions -------------------------------------------------------*/
33 PyObject
*getulong(unsigned long w
)
36 return (PyInt_FromLong(w
));
38 return (PyLong_FromUnsignedLong(w
));
41 PyObject
*getbool(int b
)
47 PyObject
*abstract_pynew(PyTypeObject
*ty
, PyObject
*arg
, PyObject
*kw
)
49 PyErr_SetString(PyExc_TypeError
, "can't instantiate this class");
53 int convulong(PyObject
*o
, void *pp
)
56 unsigned long *p
= pp
;
61 if (i
< 0) VALERR("must be nonnegative");
64 if ((t
= PyNumber_Long(o
)) == 0) goto end
;
65 *p
= PyLong_AsUnsignedLong(t
);
67 if (PyErr_Occurred()) goto end
;
75 int convu##n(PyObject *o, void *pp) \
80 if (!convulong(o, &u)) goto end; \
81 if (u > MASK##n) VALERR("out of range"); \
89 int convuint(PyObject
*o
, void *pp
)
94 if (!convulong(o
, &u
)) goto end
;
95 if (u
> UINT_MAX
) VALERR("out of range");
102 int convmpw(PyObject
*o
, void *pp
)
107 if (!convulong(o
, &u
)) goto end
;
108 if (u
> MPW_MAX
) VALERR("out of range");
115 int convszt(PyObject
*o
, void *pp
)
120 if (!convulong(o
, &u
)) goto end
;
121 if (u
> ~(size_t)0) VALERR("out of range");
128 int convbool(PyObject
*o
, void *pp
)
130 *(int *)pp
= PyObject_IsTrue(o
);
134 /*----- Type messing ------------------------------------------------------*/
136 static const PyTypeObject emptytype
= { 0 };
138 void *newtype(PyTypeObject
*metaty
,
139 const PyTypeObject
*skel
,
142 PyHeapTypeObject
*ty
=
143 (PyHeapTypeObject
*)_PyObject_GC_Malloc(_PyObject_VAR_SIZE(metaty
, 0));
144 if (!skel
) skel
= &emptytype
;
145 memcpy(ty
, skel
, sizeof(*skel
));
146 if (ty
->ht_type
.tp_base
) Py_INCREF(ty
->ht_type
.tp_base
);
147 #define COPY(blah) do { \
148 if (ty->ht_type.tp_as_##blah) { \
149 memcpy(&ty->as_##blah, \
150 ty->ht_type.tp_as_##blah, \
151 sizeof(ty->as_##blah)); \
152 ty->ht_type.tp_as_##blah = &ty->as_##blah; \
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
);
165 ty
->ht_type
.tp_name
= PyString_AS_STRING(ty
->ht_name
);
166 DISCARD(PyObject_INIT(&ty
->ht_type
, metaty
));
171 PyTypeObject
*inittype(PyTypeObject
*tyskel
)
173 PyTypeObject
*ty
= newtype(&PyType_Type
, tyskel
, 0);
174 ty
->tp_flags
|= Py_TPFLAGS_HEAPTYPE
;
179 /*----- Constants ---------------------------------------------------------*/
181 void setconstants(PyObject
*mod
, const struct nameval
*c
)
186 if (c
->value
> LONG_MAX
)
187 x
= PyLong_FromUnsignedLong(c
->value
);
189 x
= PyInt_FromLong(c
->value
);
190 PyModule_AddObject(mod
, (/*unconst*/ char *)c
->name
, x
);
195 /*----- Building method tables --------------------------------------------*/
197 DA_DECL(method_v
, PyMethodDef
);
198 static method_v global_pymethods
= DA_INIT
;
199 void addmethods(const PyMethodDef
*m
)
203 for (n
= 0; m
[n
].ml_name
; n
++);
204 DA_ENSURE(&global_pymethods
, n
);
205 memcpy(DA(&global_pymethods
) + DA_LEN(&global_pymethods
),
207 DA_EXTEND(&global_pymethods
, n
);
210 PyMethodDef
*donemethods(void)
212 static const PyMethodDef mzero
= { 0 };
213 DA_PUSH(&global_pymethods
, mzero
);
214 return (DA(&global_pymethods
));
217 /*----- Exceptions --------------------------------------------------------*/
219 PyObject
* mkexc(PyObject
*mod
, PyObject
*base
,
220 const char *name
, PyMethodDef
*mm
)
222 PyObject
*nameobj
= 0;
228 if ((nameobj
= PyString_FromFormat("%s.%s",
229 PyModule_GetName(mod
),
231 (dict
= PyDict_New()) == 0 ||
232 (exc
= PyErr_NewException(PyString_AS_STRING(nameobj
),
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
))
242 Py_DECREF(func
); func
= 0;
243 Py_DECREF(meth
); meth
= 0;
261 /*----- Generic dictionary methods ----------------------------------------*/
263 static PyTypeObject
*itemiter_pytype
, *valiter_pytype
;
265 typedef struct iter_pyobj
{
270 #define ITER_MAP(o) (((iter_pyobj *)(o))->map)
271 #define ITER_I(o) (((iter_pyobj *)(o))->i)
273 static void iter_pydealloc(PyObject
*me
)
274 { Py_DECREF(ITER_MAP(me
)); Py_DECREF(ITER_I(me
)); FREEOBJ(me
); }
276 static PyObject
*itemiter_pynext(PyObject
*me
)
278 PyObject
*k
= 0, *v
= 0, *rc
= 0;
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
);
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@ */
293 iter_pydealloc
, /* @tp_dealloc@ */
295 0, /* @tp_getattr@ */
296 0, /* @tp_setattr@ */
297 0, /* @tp_compare@ */
299 0, /* @tp_as_number@ */
300 0, /* @tp_as_sequence@ */
301 0, /* @tp_as_mapping@ */
305 0, /* @tp_getattro@ */
306 0, /* @tp_setattro@ */
307 0, /* @tp_as_buffer@ */
308 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
312 "Iterates over the items of a mapping.",
314 0, /* @tp_traverse@ */
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@ */
325 0, /* @tp_descr_get@ */
326 0, /* @tp_descr_set@ */
327 0, /* @tp_dictoffset@ */
329 PyType_GenericAlloc
, /* @tp_alloc@ */
330 abstract_pynew
, /* @tp_new@ */
335 static PyObject
*valiter_pynext(PyObject
*me
)
337 PyObject
*k
= 0, *rc
= 0;
339 if ((k
= PyIter_Next(ITER_I(me
))) != 0)
340 rc
= PyObject_GetItem(ITER_MAP(me
), k
);
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@ */
351 iter_pydealloc
, /* @tp_dealloc@ */
353 0, /* @tp_getattr@ */
354 0, /* @tp_setattr@ */
355 0, /* @tp_compare@ */
357 0, /* @tp_as_number@ */
358 0, /* @tp_as_sequence@ */
359 0, /* @tp_as_mapping@ */
363 0, /* @tp_getattro@ */
364 0, /* @tp_setattro@ */
365 0, /* @tp_as_buffer@ */
366 Py_TPFLAGS_DEFAULT
| /* @tp_flags@ */
370 "Iterates over the items of a mapping.",
372 0, /* @tp_traverse@ */
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@ */
383 0, /* @tp_descr_get@ */
384 0, /* @tp_descr_set@ */
385 0, /* @tp_dictoffset@ */
387 PyType_GenericAlloc
, /* @tp_alloc@ */
388 abstract_pynew
, /* @tp_new@ */
393 PySequenceMethods gmap_pysequence
= {
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@ */
406 int gmap_pysize(PyObject
*me
)
408 PyObject
*i
= 0, *x
= 0;
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
;
417 Py_XDECREF(i
); Py_XDECREF(x
);
421 PyObject
*gmapmeth_has_key(PyObject
*me
, PyObject
*arg
)
424 if (!PyArg_ParseTuple(arg
, "O:has_key", &k
)) return (0);
425 return (getbool(PyMapping_HasKey(me
, k
)));
428 PyObject
*gmapmeth_keys(PyObject
*me
, PyObject
*arg
)
430 PyObject
*l
= 0, *i
= 0, *k
, *rc
= 0;
433 if (!PyArg_ParseTuple(arg
, ":keys") ||
434 (l
= PyList_New(0)) == 0 ||
435 (i
= PyObject_GetIter(me
)) == 0)
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
;
442 Py_XDECREF(l
); Py_XDECREF(i
);
446 PyObject
*gmapmeth_values(PyObject
*me
, PyObject
*arg
)
448 PyObject
*l
= 0, *i
= 0, *k
, *v
, *rc
= 0;
451 if (!PyArg_ParseTuple(arg
, ":values") ||
452 (l
= PyList_New(0)) == 0 ||
453 (i
= PyObject_GetIter(me
)) == 0)
455 while ((k
= PyIter_Next(i
)) != 0) {
456 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
459 Py_DECREF(k
); Py_XDECREF(v
);
462 if (PyErr_Occurred()) goto done
;
465 Py_XDECREF(l
); Py_XDECREF(i
);
469 PyObject
*gmapmeth_items(PyObject
*me
, PyObject
*arg
)
471 PyObject
*l
= 0, *i
= 0, *k
, *v
, *z
, *rc
= 0;
474 if (!PyArg_ParseTuple(arg
, ":items") ||
475 (l
= PyList_New(0)) == 0 ||
476 (i
= PyObject_GetIter(me
)) == 0)
478 while ((k
= PyIter_Next(i
)) != 0) {
480 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
481 (z
= Py_BuildValue("(OO)", k
, v
)) == 0 ||
484 Py_DECREF(k
); Py_XDECREF(v
); Py_XDECREF(z
);
487 if (PyErr_Occurred()) goto done
;
490 Py_XDECREF(l
); Py_XDECREF(i
);
494 PyObject
*gmapmeth_iterkeys(PyObject
*me
, PyObject
*arg
)
496 if (!PyArg_ParseTuple(arg
, ":iterkeys")) return (0);
497 return (PyObject_GetIter(me
));
500 PyObject
*gmapmeth_itervalues(PyObject
*me
, PyObject
*arg
)
505 if (!PyArg_ParseTuple(arg
, ":itervalues") ||
506 (i
= PyObject_GetIter(me
)) == 0)
508 ii
= PyObject_NEW(iter_pyobj
, valiter_pytype
);
509 ii
->map
= me
; Py_INCREF(me
);
511 return ((PyObject
*)ii
);
514 PyObject
*gmapmeth_iteritems(PyObject
*me
, PyObject
*arg
)
519 if (!PyArg_ParseTuple(arg
, ":iteritems") ||
520 (i
= PyObject_GetIter(me
)) == 0)
522 ii
= PyObject_NEW(iter_pyobj
, itemiter_pytype
);
523 ii
->map
= me
; Py_INCREF(me
);
525 return ((PyObject
*)ii
);
528 PyObject
*gmapmeth_clear(PyObject
*me
, PyObject
*arg
)
530 PyObject
*i
= 0, *k
= 0, *rc
= 0;
532 if (!PyArg_ParseTuple(arg
, ":clear") ||
533 (i
= PyObject_GetIter(me
)) == 0)
535 while ((k
= PyIter_Next(i
)) != 0) {
536 PyObject_DelItem(me
, k
);
539 if (PyErr_Occurred()) goto end
;
540 rc
= me
; Py_INCREF(me
);
546 static char *def_kwlist
[] = { "key", "default", 0 };
548 PyObject
*gmapmeth_get(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
550 PyObject
*k
, *def
= Py_None
, *v
;
552 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:get", def_kwlist
, &k
, &def
))
554 if ((v
= PyObject_GetItem(me
, k
)) != 0) return (v
);
559 PyObject
*gmapmeth_setdefault(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
561 PyObject
*k
, *def
= Py_None
, *v
;
563 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:setdefault",
564 def_kwlist
, &k
, &def
))
566 if ((v
= PyObject_GetItem(me
, k
)) != 0) return (v
);
568 if (PyObject_SetItem(me
, k
, def
)) return (0);
572 PyObject
*gmapmeth_pop(PyObject
*me
, PyObject
*arg
, PyObject
*kw
)
574 PyObject
*k
, *def
= 0, *v
;
576 if (!PyArg_ParseTupleAndKeywords(arg
, kw
, "OO:pop", def_kwlist
, &k
, &def
))
578 if ((v
= PyObject_GetItem(me
, k
)) != 0) {
579 PyObject_DelItem(me
, k
);
586 PyObject
*gmapmeth_update(PyObject
*me
, PyObject
*arg
)
588 PyObject
*map
, *i
= 0, *k
, *v
, *rc
= 0;
591 if (!PyArg_ParseTuple(arg
, "O:update", &map
) ||
592 (i
= PyObject_GetIter(map
)) == 0)
594 while ((k
= PyIter_Next(i
)) != 0) {
595 if ((v
= PyObject_GetItem(map
, k
)) == 0 ||
596 PyObject_SetItem(me
, k
, v
))
598 Py_DECREF(k
); Py_XDECREF(v
);
601 if (PyErr_Occurred()) goto end
;
602 rc
= me
; Py_INCREF(me
);
608 PyObject
*gmapmeth_popitem(PyObject
*me
, PyObject
*arg
)
610 PyObject
*i
= 0, *k
= 0, *v
= 0, *rc
= 0;
612 if (!PyArg_ParseTuple(arg
, ":popitem") ||
613 (i
= PyObject_GetIter(me
)))
615 if ((k
= PyIter_Next(i
)) == 0) {
616 if (!PyErr_Occurred()) VALERR("popitem(): mapping is empty");
619 if ((v
= PyObject_GetItem(me
, k
)) == 0 ||
620 PyObject_DelItem(me
, k
))
622 rc
= Py_BuildValue("(OO)", k
, v
);
624 Py_XDECREF(i
); Py_XDECREF(k
); Py_XDECREF(v
);
628 PyMethodDef gmap_pymethods
[] = {
633 /*----- Initialization ----------------------------------------------------*/
635 void util_pyinit(void)
637 INITTYPE(itemiter
, root
);
638 INITTYPE(valiter
, root
);
641 void util_pyinsert(PyObject
*mod
)
643 INSERT("ItemIter", itemiter_pytype
);
644 INSERT("ValueIter", valiter_pytype
);
647 /*----- That's all, folks -------------------------------------------------*/