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Is it possible to override `release` for debugging?

Sometimes I need to find out if an object will actually be released. Of course, I could use the Tools, but it takes a lot of time, and I have to search for millions of objects, so I used this:

-(void)release { NSLog(@"I'm released"); [super release]; }

But the problem is what is safe to do ? Can I get any problems when I override -(void)release . Also, is it really void ? And what if I create an application for distribution, but in case of an accident you leave it? Or is it just safe? Thanks

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2 answers

This is good, but please limit it to debugging only.

It is not void , but oneway void .

 -(oneway void)release { NSLog(@"I'm released"); // <-- remeber the @. [super release]; }

Note that if you only override this for NSObject, -release messages sent to "free bridge containers" (for example, NSCFArray, etc.) will be missed, as they also redefined -release for forwarding to CFRelease .

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The release message only decreases the instance reference count.

If you want to know if an instance has been released, it is best to override the dealloc message:

 - (void)dealloc { NSLog(@"I am deallocated"); [super dealloc]; }

Use it wisely.

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