On 23 Sep 2016, at 9:49 PM, Uli Kusterer <witness.of.teacht...@gmx.net> wrote:
>
> Are you sure? I only learned Cocoa when it came to OS X, but my impression
> was that, while KVC came from NeXT, KVO arrived with bindings … that would
> have been 10.3 or 10.4-ish?
As I remember, when KVO was introduced, it was framed as a bottleneck for
implementing bindings. Foundation exposed it as a courtesy to developers who
would find it useful in itself.
Cocoa practice has changed since then, but that’s what I gathered at the time.
You’re right, KVC was NeXTStep. The patent on it was one of NS/Apple’s crown
jewels.
— F
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