Kernel Panic

This is an improved logging technique I developed in the last couple of days. It’s not to debug an specific problem, but to get a general idea of where your bug is, and if there are no bugs, to know the stack of methods called.

It’s quite simple, but it does require some work to implement. If you have a big project, it could take some time to implement.

Instructions:

First, get this class, and add it to your project.

Then, in your prefix file, add the following lines:

The XX should be two characters to filter your logs, it’s not necesary, but it’s useful. You can find more about that here.

And finally, at the beginning of every method you want to log, add LOG_IN, at the end of the method, and before any returns, add LOG_OUT.

If it’s a really small method and you don’t want to know where it starts and when it ends, but only when it happened, just add LOG_NO.

If you want to log with a custom string while respecting the indent level LOG(NSString *here).

The result in the log will be a message when the method is called with an indent level, and the methods that are called before it ends will have an indentation level greater by one, then the indentation level will be reduced by one when the method ends.

It will look something like:

To stop showing the log, just comment the methods so it looks like this:

NOTE: Make sure you disable this logging before releasing you app, as it’s a little heavier than the standard logging (due to the calculations to make the indent) and will slow down your app.