Commit | Line | Data |
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5b1830f3 MW |
1 | ### -*-pyrex-*- |
2 | ### | |
3 | ### Association tables | |
4 | ### | |
5 | ### (c) 2005 Straylight/Edgeware | |
6 | ### | |
579d0169 | 7 | |
5b1830f3 MW |
8 | ###----- Licensing notice --------------------------------------------------- |
9 | ### | |
10 | ### This file is part of the Python interface to mLib. | |
11 | ### | |
12 | ### mLib/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. | |
16 | ### | |
17 | ### mLib/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. | |
21 | ### | |
22 | ### You should have received a copy of the GNU General Public License | |
23 | ### along with mLib/Python; if not, write to the Free Software Foundation, | |
24 | ### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. | |
579d0169 | 25 | |
26 | cdef struct _assoc_entry: | |
27 | sym_base _b | |
28 | PyObject *v | |
29 | ||
30 | cdef class AssocTable (Mapping): | |
31 | cdef assoc_table _t | |
32 | cdef int _init(me) except -1: | |
33 | assoc_create(&me._t) | |
34 | return 0 | |
35 | cdef void *_find(me, object key, unsigned *f) except NULL: | |
36 | cdef void *p | |
37 | cdef int n | |
38 | cdef _assoc_entry *e | |
39 | cdef atom *a | |
40 | a = ATOM_A(atom_pyintern(key)) | |
41 | PyObject_AsReadBuffer(key, &p, &n) | |
42 | if f: | |
43 | f[0] = 0 | |
44 | e = <_assoc_entry *>assoc_find(&me._t, a, PSIZEOF(e), f) | |
45 | if not f[0]: | |
46 | e.v = NULL | |
47 | else: | |
48 | e = <_assoc_entry *>assoc_find(&me._t, a, 0, NULL) | |
49 | return <void *>e | |
50 | cdef object _key(me, void *e): | |
51 | return atom_pywrap(ASSOC_ATOM(e)) | |
52 | cdef object _value(me, void *e): | |
53 | cdef _assoc_entry *ee | |
54 | ee = <_assoc_entry *>e | |
55 | Py_INCREF(ee.v) | |
56 | return <object>ee.v | |
d8d81d1b | 57 | cdef void _setval(me, void *e, object val): |
579d0169 | 58 | cdef _assoc_entry *ee |
59 | ee = <_assoc_entry *>e | |
60 | if ee.v: | |
61 | Py_DECREF(ee.v) | |
62 | ee.v = <PyObject *>v | |
63 | Py_INCREF(ee.v) | |
64 | cdef void _del(me, void *e): | |
65 | cdef _assoc_entry *ee | |
66 | ee = <_assoc_entry *>e | |
67 | if ee.v: | |
68 | Py_DECREF(ee.v) | |
69 | assoc_remove(&me._t, <void *>ee) | |
70 | cdef _MapIterator _iter(me): | |
71 | return _AssocIter(me) | |
72 | ||
73 | cdef class _AssocIter (_MapIterator): | |
74 | cdef AssocTable t | |
75 | cdef assoc_iter i | |
376ad06d | 76 | def __cinit__(me, AssocTable t): |
579d0169 | 77 | me.t = t |
78 | assoc_mkiter(&me.i, &me.t._t) | |
79 | cdef void *_next(me): | |
80 | return assoc_next(&me.i) | |
81 | ||
5b1830f3 | 82 | ###----- That's all, folks -------------------------------------------------- |