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@Commodore A weak reference is a reference which is not counted for the garbage collector. Lets say you have a Parent and a Child class, which reference themselves. Some garbage collectors would never delete the parent, since there will always be a reference to the parent (from the child) and the other way around. So you make the reference from child to parent weak, so that the child will be kept alive by the parent, but not the other way around.
The world is about to end
Non-dev buddy: Dude I'm gonna report you to the tech department what are you hacking??
Me:
Dev: Hi Guys, we've noticed on crashlytics that one of your screens has a small crash. Can you look?
Me: Ok we had a look, and it looks to us to be a memory leak issue on most of the other screens. Homepage, Search, Product page etc. all seem to have sizeable memory leaks. We have a few crashes on our screens saying iPhone 11's (which have 4gb of ram) are crashing with only 1% of ram left.
What we think is happening is that we have weak references to avoid circular dependencies. Our weak references are most likely the only things the system would be able to free up, resulting in our UI not being able to contact the controller, breaking everything. Because of the custom libraries you built that we have to use, we can't really catch this.
Theres not really a lot we can do. We are following apples recommendations to avoid circular dependencies and memory leaks. The instruments say our screens are behaving fine. I think you guys will have to fix the leaks. Sorry.
Dev 1: hhhmm, what if you create a circular dependency? Then the UI won't loose any of the data.
Dev 2: Have you tried looking at our analytics to understand how the user is getting to your screens?
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I've been sitting here for 15 minutes trying to figure out how to respond before they come online. I am fucking horrified by those responses to "every one of your screens have memory leaks"
rant
moron
memory leak
idiot
dumb