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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
|
/* iterator.c generated by valac 0.18.0, the Vala compiler
* generated from iterator.vala, do not modify */
/* iterator.vala
*
* Copyright (C) 2007-2008 Jürg Billeter
* Copyright (C) 2009 Didier Villevalois, Maciej Piechotka
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Author:
* Jürg Billeter <j@bitron.ch>
* Maciej Piechotka <uzytkownik2@gmail.com>
* Didier 'Ptitjes Villevalois <ptitjes@free.fr>
*/
#include <glib.h>
#include <glib-object.h>
#define GEE_TYPE_ITERATOR (gee_iterator_get_type ())
#define GEE_ITERATOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GEE_TYPE_ITERATOR, GeeIterator))
#define GEE_IS_ITERATOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GEE_TYPE_ITERATOR))
#define GEE_ITERATOR_GET_INTERFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GEE_TYPE_ITERATOR, GeeIteratorIface))
typedef struct _GeeIterator GeeIterator;
typedef struct _GeeIteratorIface GeeIteratorIface;
struct _GeeIteratorIface {
GTypeInterface parent_iface;
gboolean (*next) (GeeIterator* self);
gboolean (*has_next) (GeeIterator* self);
gboolean (*first) (GeeIterator* self);
gpointer (*get) (GeeIterator* self);
void (*remove) (GeeIterator* self);
};
GType gee_iterator_get_type (void) G_GNUC_CONST;
gboolean gee_iterator_next (GeeIterator* self);
gboolean gee_iterator_has_next (GeeIterator* self);
gboolean gee_iterator_first (GeeIterator* self);
gpointer gee_iterator_get (GeeIterator* self);
void gee_iterator_remove (GeeIterator* self);
/**
* Advances to the next element in the iteration.
*
* @return ``true`` if the iterator has a next element
*/
gboolean gee_iterator_next (GeeIterator* self) {
g_return_val_if_fail (self != NULL, FALSE);
return GEE_ITERATOR_GET_INTERFACE (self)->next (self);
}
/**
* Checks whether there is a next element in the iteration.
*
* @return ``true`` if the iterator has a next element
*/
gboolean gee_iterator_has_next (GeeIterator* self) {
g_return_val_if_fail (self != NULL, FALSE);
return GEE_ITERATOR_GET_INTERFACE (self)->has_next (self);
}
/**
* Rewinds to the first element in the iteration.
*
* @return ``true`` if the iterator has a first element
*/
gboolean gee_iterator_first (GeeIterator* self) {
g_return_val_if_fail (self != NULL, FALSE);
return GEE_ITERATOR_GET_INTERFACE (self)->first (self);
}
/**
* Returns the current element in the iteration.
*
* @return the current element in the iteration
*/
gpointer gee_iterator_get (GeeIterator* self) {
g_return_val_if_fail (self != NULL, NULL);
return GEE_ITERATOR_GET_INTERFACE (self)->get (self);
}
/**
* Removes the current element in the iteration. The cursor is set in an
* in-between state. Both {@link get} and {@link remove} will fail until
* the next move of the cursor (calling {@link next} or {@link first}).
*/
void gee_iterator_remove (GeeIterator* self) {
g_return_if_fail (self != NULL);
GEE_ITERATOR_GET_INTERFACE (self)->remove (self);
}
static void gee_iterator_base_init (GeeIteratorIface * iface) {
static gboolean initialized = FALSE;
if (!initialized) {
initialized = TRUE;
}
}
/**
* An iterator over a collection.
*
* Gee's iterators are "on-track" iterators. They always point to an item
* except before the first call to {@link next} or {@link first}, or, when an
* item has been removed, until the next call to {@link next} or {@link first}.
*
* Please note that when the iterator is out of track, neither {@link get} nor
* {@link remove} are defined and both will fail. After the next call to
* {@link next} or {@link first}, they will be defined again.
*/
GType gee_iterator_get_type (void) {
static volatile gsize gee_iterator_type_id__volatile = 0;
if (g_once_init_enter (&gee_iterator_type_id__volatile)) {
static const GTypeInfo g_define_type_info = { sizeof (GeeIteratorIface), (GBaseInitFunc) gee_iterator_base_init, (GBaseFinalizeFunc) NULL, (GClassInitFunc) NULL, (GClassFinalizeFunc) NULL, NULL, 0, 0, (GInstanceInitFunc) NULL, NULL };
GType gee_iterator_type_id;
gee_iterator_type_id = g_type_register_static (G_TYPE_INTERFACE, "GeeIterator", &g_define_type_info, 0);
g_type_interface_add_prerequisite (gee_iterator_type_id, G_TYPE_OBJECT);
g_once_init_leave (&gee_iterator_type_id__volatile, gee_iterator_type_id);
}
return gee_iterator_type_id__volatile;
}
|
