> On Jan 20, 2017, at 7:55 AM, Ian Partridge via swift-corelibs-dev
> <swift-corelibs-dev@swift.org> wrote:
>
> Is there any way that we could support asynchronous operations in
> swift-corelibs-foundation, in the absence of KVO?
Could we add `willChangeValue(forKey:)` and `didChangeValue(forKey:)` methods
just to `Operation` which only handle an `isFinished` key? Presumably they'd
just look like:
public func willChangeValue(forKey key: String) {
// do nothing
}
public func didChangeValue(forKey key: String) {
if key == "isFinished" && isFinished {
finish()
}
}
I believe that would make existing code just work without needing to do
anything special.
--
Brent Royal-Gordon
Architechies
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