Re: RE: swizzling a class to a subclass inorder to add ivars (& methods) to a class
Re: RE: swizzling a class to a subclass inorder to add ivars (& methods) to a class
- Subject: Re: RE: swizzling a class to a subclass inorder to add ivars (& methods) to a class
- From: "Shawn Erickson" <email@hidden>
- Date: Mon, 30 Oct 2006 09:37:50 -0800
On 10/30/06, Michael Latta <email@hidden> wrote:
They are making several changes in 64 bit to allow them more control over
the metadata which gives them more room for performance optimizations and
such. They are replacing all metadata structures with APIs and hiding the
implementation details (which is how it should be).
One of the outcomes of this is that when a superclass grows in size it does
not break subclasses that added ivars! No more need to reserve space for
future use.
Don't forget things are still under NDA.
-Shawn
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