cclass.c
2.66 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
/**
* \file
* cclass.c: basic "class-like" handling of code and data structures
* Copyright (C) 2011 Georg Hopp
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdarg.h>
#include <string.h>
#include <stdlib.h>
#include <json/json.h>
#include "cclass.h"
#undef __construct
#undef __clear
#undef __destruct
#undef __jsonConst
#undef __toJson
void *
_new(const CCLASS _class, ...)
{
const CCLASS class = _class;
void * object = calloc(1, class->size + sizeof(CCLASS));
* (const struct _CCLASS **)object = class;
object += sizeof(CCLASS);
if (class->__construct) {
va_list params;
va_start(params, _class);
class->__construct(object, ¶ms);
va_end(params);
}
return object;
}
void *
_newFromJson(const CCLASS _class, struct json_object * json)
{
const CCLASS class = _class;
void * object = calloc(1, class->size + sizeof(CCLASS));
* (const struct _CCLASS **) object = class;
object += sizeof(CCLASS);
if (class->__jsonConst && json) {
class->__jsonConst(object, json);
}
return object;
}
int
_instanceOf(const CCLASS _class, void * _object)
{
const CCLASS * class = _object - sizeof(CCLASS);
return (class && _class == *class);
}
void
clear(void * _object)
{
const CCLASS * class = _object - sizeof(CCLASS);
if (_object && *class && (*class)->__clear) {
(*class)->__clear(_object);
}
}
void
delete(void * _object)
{
const CCLASS * class = (*(void**)_object) - sizeof(CCLASS);
if (*(void**)_object && *class && (*class)->__destruct) {
(*class)->__destruct(*(void**)_object);
}
free((void *)class);
*(void**)_object = NULL;
}
void
toJson(void * _object, struct json_object ** json)
{
const CCLASS * class = _object - sizeof(CCLASS);
if (_object && *class && (*class)->__toJson) {
(*class)->__toJson(_object, json);
}
}
int
isObject(void * _object)
{
const CCLASS * class = _object - sizeof(CCLASS);
return (_object && (*class) && CCLASS_MAGIC == (*class)->magic);
}
// vim: set et ts=4 sw=4: