You can specify that a class adopts a protocol by defining it as:
@interface ClassB : ClassA <Check>
{
...
}
...
@end
This will tell the compiler that ClassB implements the Check
protocol. You can put multiple protocols by separating them with a
comma:
@interface ClassB : ClassA <Check, someotherproto>
{
...
}
...
@end
This will stop compiler warnings and will also warn if a class you
defined to use the protocol doesn't have an implementation for the
method(s) in that protocol.
On Apr 28, 2008, at 6:00 PM, K. Darcy Otto wrote:
I need to have a subclass optionally extend a method already in the
superclass. After some research, my best guess is that an
optionally defined protocol is the best way to go about this. So,
what I have in the superclass is:
_______________________________________________
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]
