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/tmp/gdb-8.1/gdb/varobj-iter.h
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1 /* Iterator of varobj.
2 Copyright (C) 2013-2018 Free Software Foundation, Inc.
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 3 of the License, or
7 (at your option) any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
13
14 You should have received a copy of the GNU General Public License
15 along with this program. If not, see <http://www.gnu.org/licenses/>. */
16
17 /* A node or item of varobj, composed of the name and the value. */
18
19 typedef struct varobj_item
20 {
21 /* Name of this item. */
22 std::string name;
23
24 /* Value of this item. */
25 struct value *value;
26 } varobj_item;
27
28 struct varobj_iter_ops;
29
30 /* A dynamic varobj iterator "class". */
31
32 struct varobj_iter
33 {
34 /* The 'vtable'. */
35 const struct varobj_iter_ops *ops;
36
37 /* The varobj this iterator is listing children for. */
38 struct varobj *var;
39
40 /* The next raw index we will try to check is available. If it is
41 equal to number_of_children, then we've already iterated the
42 whole set. */
43 int next_raw_index;
44 };
45
46 /* The vtable of the varobj iterator class. */
47
48 struct varobj_iter_ops
49 {
50 /* Destructor. Releases everything from SELF (but not SELF
51 itself). */
52 void (*dtor) (struct varobj_iter *self);
53
54 /* Returns the next object or NULL if it has reached the end. */
55 varobj_item *(*next) (struct varobj_iter *self);
56 };
57
58 /* Returns the next varobj or NULL if it has reached the end. */
59
60 #define varobj_iter_next(ITER) (ITER)->ops->next (ITER)
61
62 /* Delete a varobj_iter object. */
63
64 #define varobj_iter_delete(ITER) \
65 do \
66 { \
67 if ((ITER) != NULL) \
68 { \
69 (ITER)->ops->dtor (ITER); \
70 xfree (ITER); \
71 } \
72 } while (0)
string
const char * string
Definition: signals.c:50
varobj
Definition: varobj.h:94
varobj_iter_ops::dtor
void(* dtor)(struct varobj_iter *self)
Definition: varobj-iter.h:52
varobj_iter::ops
const struct varobj_iter_ops * ops
Definition: varobj-iter.h:35
varobj_item
struct varobj_item varobj_item
varobj_item::name
std::string name
Definition: varobj-iter.h:22
varobj_iter
Definition: varobj-iter.h:32
value
Definition: value.c:169
varobj_iter::next_raw_index
int next_raw_index
Definition: varobj-iter.h:43
varobj_item::value
struct value * value
Definition: varobj-iter.h:25
varobj_item
Definition: varobj-iter.h:19
varobj_iter::var
struct varobj * var
Definition: varobj-iter.h:38
varobj_iter_ops
Definition: varobj-iter.h:48