| 1 | /* Iterator of varobj. |
| 2 | Copyright (C) 2013-2016 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 | char *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) |