I release a "regular" instance variable in my managed object's -
didTurnIntoFault, and discovered that this was causing a crash
sometime after an undo. In searching code on the internet I see that
others have reported such crashes. I solved the problem by setting
the instance variable to nil:
- (void)didTurnIntoFault {
[childrenTemp release] ; childrenTemp = nil ;
[super didTurnIntoFault] ;
}
Now I understand that if nilling an instance variable after releasing
it is done in -dealloc, it is papering over other memory management
problems and is therefore bad programming practice. But I believe
that this practice is OK in -didTurnIntoFault because, particularly
when Undo is involved, -didTurnIntoFault may be invoked more than once
on an object. Therefore nilling after releasing in -didTurnIntoFault
is recommended.
Does anyone disagree?
Sincerely,
Jerry Krinock
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