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# Copyright (C) 2013-2016 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/>.
import gdb
import itertools
class FrameIterator(object):
"""A gdb.Frame iterator. Iterates over gdb.Frames or objects that
conform to that interface."""
def __init__(self, frame_obj):
"""Initialize a FrameIterator.
Arguments:
frame_obj the starting frame."""
super(FrameIterator, self).__init__()
self.frame = frame_obj
def __iter__(self):
return self
def next(self):
"""next implementation.
Returns:
The next oldest frame."""
result = self.frame
if result is None:
raise StopIteration
self.frame = result.older()
return result
# Python 3.x requires __next__(self) while Python 2.x requires
# next(self). Define next(self), and for Python 3.x create this
# wrapper.
def __next__(self):
return self.next()
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