Hi Laurent, Thanks for the hint. Searched and found some docs that say the same thing.
http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/GarbageCollection/Articles/gcFinalize.html Dave. On 29 Apr 2010, at 23:08, Laurent Sansonetti wrote: > Hi Dave, > > Normally, you would do this in -finalize, since -dealloc will not be called > under GC. > > Now, I believe (this should be confirmed...) that under GC, > NSNotificationCenter & friends automatically unregister observers when they > get collected. This is done through the weak reference machinery. It may not > be implemented for all observer pattern-based APIs though, so in some cases > doing it manually in -finalize might be required... > > One critical thing to keep in mind while writing a -finalize method is to > avoid resurrection. The GC does not support that. Make sure you do not insert > "self" anywhere it could be "referenced" by a write barrier. > > HTH, > Laurent > > On Apr 29, 2010, at 11:33 AM, Dave Baldwin wrote: > >> A common design pattern in cocoa seems to be to have a objc method along the >> lines: >> >> - (void)dealloc { >> >> // Stop observing the tool palette. >> [[NSNotificationCenter defaultCenter] removeObserver:self >> name:SKTSelectedToolDidChangeNotification object:[SKTToolPaletteController >> sharedToolPaletteController]]; >> >> // Stop observing the document's canvas size. >> [[self document] removeObserver:self forKeyPath:SKTDocumentCanvasSizeKey]; >> >> // memory management stuff removed... >> } >> >> - taken from the Sketch sample. >> >> One way to handle this would be to add a finalizer method to act in place of >> the the dealloc, but is this the best or correct way to handle this? >> >> Thanks, >> >> Dave. >> >> >> _______________________________________________ >> MacRuby-devel mailing list >> MacRuby-devel@lists.macosforge.org >> http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel > > _______________________________________________ > MacRuby-devel mailing list > MacRuby-devel@lists.macosforge.org > http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel _______________________________________________ MacRuby-devel mailing list MacRuby-devel@lists.macosforge.org http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel
