On Thu, 17 Jul 2014 20:01:09 -0700, Jens Alfke said:
>Every once in a while I run into a bug in my code that’s triggered by
>self getting dealloced in the middle of a method. It’s usually something like
> - (void) someMethod {
> doSomeStuff;
> [self.delegate object: self didSomeStuff: yeah];
> doSomeMoreStuff;
> }
>where it turns out that the delegate method clears its reference to me,
>and that was the last reference, causing self to get dealloced during
>the delegate call, causing doSomeMoreStuff to crash.
I've had similar cases under garbage collection and one nice solution was to
add:
[objToKeepAlive self];
at the end. As the 'self' message does nothing, it's sorta self-documenting,
and as all message dispatch is dynamic, the optimizer can't remove it. I don't
have much experience with ARC yet, but seems this might work there too.
Cheers,
--
____________________________________________________________
Sean McBride, B. Eng [email protected]
Rogue Research www.rogue-research.com
Mac Software Developer Montréal, Québec, Canada
_______________________________________________
Cocoa-dev mailing list ([email protected])
Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com
Help/Unsubscribe/Update your Subscription:
https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com
This email sent to [email protected]
