On Nov 22, 2014, at 12:43 AM, ChanMaxthon <m...@maxchan.info> wrote:

> Given that Apple's Foundation does not support getting NSRunLoop from 
> CFRunLoopRef, Cocotron designed CFRunLoop using toll-free bridging from 
> NSRunLoop and GNUstep have a NSRunLoopFromCFRunLoop() (and GNUstep have some 
> some NSRunLoop extensions allowing implementing this mess without fussing 
> with CF.) function in their CoreFoundation implementation, is it safe to pass 
> whatever object I got from the underlying framework over to the upper layer, 
> with proper warning in the documentation?

It's not clear what you're asking.

CFRunLoop and NSRunLoop are _not_ toll-free bridged.  If some code is written 
to expect an NSRunLoop, it is not safe to pass it a CFRunLoop.

If the class's methods (designed to be overridden by subclasses) are written to 
take a CFRunLoop, all of your problems go away.  Why are you working so hard to 
avoid using CFRunLoop?

Regards,
Ken


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