binutils-gdb/gdb/varobj-iter.h

73 lines
2.0 KiB
C

/* Iterator of varobj.
Copyright (C) 2013-2015 Free Software Foundation, Inc.
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/>. */
/* A node or item of varobj, composed of the name and the value. */
typedef struct varobj_item
{
/* Name of this item. */
char *name;
/* Value of this item. */
struct value *value;
} varobj_item;
struct varobj_iter_ops;
/* A dynamic varobj iterator "class". */
struct varobj_iter
{
/* The 'vtable'. */
const struct varobj_iter_ops *ops;
/* The varobj this iterator is listing children for. */
struct varobj *var;
/* The next raw index we will try to check is available. If it is
equal to number_of_children, then we've already iterated the
whole set. */
int next_raw_index;
};
/* The vtable of the varobj iterator class. */
struct varobj_iter_ops
{
/* Destructor. Releases everything from SELF (but not SELF
itself). */
void (*dtor) (struct varobj_iter *self);
/* Returns the next object or NULL if it has reached the end. */
varobj_item *(*next) (struct varobj_iter *self);
};
/* Returns the next varobj or NULL if it has reached the end. */
#define varobj_iter_next(ITER) (ITER)->ops->next (ITER)
/* Delete a varobj_iter object. */
#define varobj_iter_delete(ITER) \
do \
{ \
if ((ITER) != NULL) \
{ \
(ITER)->ops->dtor (ITER); \
xfree (ITER); \
} \
} while (0)