On Tue, Jun 3, 2008 at 12:51 PM, Kyle Sluder <[EMAIL PROTECTED]> wrote: > On Tue, Jun 3, 2008 at 11:15 AM, Gordon Apple <[EMAIL PROTECTED]> wrote: >> I tried exactly that. It did nothing but a horrendous crash when I >> tried to type text. I couldn't even trace it. I never even got to the copy >> part. I got the same result with a totally empty subclass. Shouldn't it >> have worked the same?s What gives with that? > > It might have something to do with the fact that, according to the > documentation, NSTextStorage is a "semiconcrete subclass of > NSMutableAttributedString." What confuses me about this is that the > words "concrete" and "abstract" have very well-defined meanings... > "semiconcrete" is bizarre and meaningless. Doesn't that just mean > it's abstract?
I interpret it as meaning that NSTextStorage is concrete in the sense that you can instantiate it directly. But, you can't inherit its implementations of NSMutableAtributedString's primitive methods; so, when subclassing NSTextStorage it's considered an abstract superclass that requires you to implement the primitive methods. sherm-- -- Cocoa programming in Perl: http://camelbones.sourceforge.net _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]
