Re: Renaissance tutorial

[David Ayers]

Nicola Pero wrote:

> I appreciate comments and suggestions (and bug reports) as usual. :-)
>
>  
Hello Nicola,

Great job! This seems to be exactly the nib replacement I've been hoping 
for!  I haven't tried it yet, but a quick glance at the tutorial and 
short scan of the source revealed that one of my itches about nib files 
wasn't scratched with Renaissance though.  It has to to with memory 
management.  Nibs simply leak (yes, you can partially avoid it by 
connecting (or programmatically collecting) all objects you can 
programmatically reference and send an extra release during the owners 
dealloc, yet some of the internal nib-collection objects always remain, 
though they don't use a lot of memory.  In large projects (200+ bundles) 
this can be very annoying and error prone.

I'm not 100% sure if Renaissance doesn't addresses this issue, but if 
not, I would suggest that during loadGSMarkupNamed:owner: the owner 
could be asked if it implemented a method like 
-(void)takeOwnershipOfObjectGraph:(id)rootObject (or anything similar) 
and if so invoke it and (auto)release the rootObject.  That way the 
owner can take control of object graph and release it when apropriate. 
Maybe some extra code in the rootObjects dealloc would also be needed 
to break any cyclic references in the graph objects, but that would be a 
second step.

What do you think?

Cheers,
Dave