Ben Cheng | a261d38 | 2014-04-30 14:57:59 -0700 | [diff] [blame] | 1 | # Copyright (C) 2013-2014 Free Software Foundation, Inc. |
| 2 | |
| 3 | # This program is free software; you can redistribute it and/or modify |
| 4 | # it under the terms of the GNU General Public License as published by |
| 5 | # the Free Software Foundation; either version 3 of the License, or |
| 6 | # (at your option) any later version. |
| 7 | # |
| 8 | # This program is distributed in the hope that it will be useful, |
| 9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 11 | # GNU General Public License for more details. |
| 12 | # |
| 13 | # You should have received a copy of the GNU General Public License |
| 14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 15 | |
| 16 | import gdb |
| 17 | import itertools |
| 18 | |
| 19 | class FrameIterator(object): |
| 20 | """A gdb.Frame iterator. Iterates over gdb.Frames or objects that |
| 21 | conform to that interface.""" |
| 22 | |
| 23 | def __init__(self, frame_obj): |
| 24 | """Initialize a FrameIterator. |
| 25 | |
| 26 | Arguments: |
| 27 | frame_obj the starting frame.""" |
| 28 | |
| 29 | super(FrameIterator, self).__init__() |
| 30 | self.frame = frame_obj |
| 31 | |
| 32 | def __iter__(self): |
| 33 | return self |
| 34 | |
| 35 | def next(self): |
| 36 | """next implementation. |
| 37 | |
| 38 | Returns: |
| 39 | The next oldest frame.""" |
| 40 | |
| 41 | result = self.frame |
| 42 | if result is None: |
| 43 | raise StopIteration |
| 44 | self.frame = result.older() |
| 45 | return result |
| 46 | |
| 47 | # Python 3.x requires __next__(self) while Python 2.x requires |
| 48 | # next(self). Define next(self), and for Python 3.x create this |
| 49 | # wrapper. |
| 50 | def __next__(self): |
| 51 | return self.next() |