Subclassing for Debugging
A really useful trick when debugging is to subclass the thing you are interested in just to make it easier to search for inside the various debugging tools.
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There are plenty more places like instruments, logging etc to make use of this technique.
It can also be useful to subclass to override -retain and -release so you can easily see when they are being called. However, this is only possible if your class inherits from an Objective-C class that you control.
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October 13, 2022 5:46 AM
I have a feeling you can still ISA swizzle even a Swift object, and override its retain and release methods on Apple platforms.
