-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Nicolas Cannasse Sent: Wednesday, July 12, 2006 1:16 AM To: Flashcoders mailing list Subject: Re: [Flashcoders] Abstract classes in AS3? > > Mike Keesey wrote: > > I don't really care whether they allow private constructors or not, as > > long as they provide some way of accomplishing the same thing. > > Specifically, I want to be able to: > > 1) Limit the number of instances of certain classes (singletons, > > enumerations). > > Did you have a look at haXe enums ? > http://haxe.org/ref#the_power_of_enum
Sure, something like that would be nice. But it's not in AS3.0. > > 2) Have methods which are not attached to specific class instances. > > That's a bit like static methods no ? I was incomplete. I should have said, "Have *bundled* methods which are not attached to specific class instances." That is, I want to be able to have groups of static methods. Static classes are how this is currently accomplished, but if we can't have private constructors, there's no way to prevent someone from (pointlessly) instantiating a static class. Can methods be attached to packages in AS3.0? If so, that might help. > > 3) Be able to create classes that cannot be instantiated themselves but > > can be superclasses of concrete classes. > > Yes, I agree there. Removing the ability to create private constructors > seems completely pointless. The rational behind it seems a bit like "you > don't need that", which is not a very strong point IMHO. Exactly! Replace the removed functionality with some other strategy, but don't just get rid of it and pretend nothing's wrong. -- Mike Keesey _______________________________________________ Flashcoders@chattyfig.figleaf.com To change your subscription options or search the archive: http://chattyfig.figleaf.com/mailman/listinfo/flashcoders Brought to you by Fig Leaf Software Premier Authorized Adobe Consulting and Training http://www.figleaf.com http://training.figleaf.com
