any chance this is possible somehow? `class C: If...

# getting-started

[Marko Mitic]

any chance this is possible somehow? class C: Iface by Delegate(this)

[Marko Mitic]

I understand C instance isn't fully constructed at this point and passing it's reference is risky but it would be useful

[marstran]

Why would you need that? If the Delegate would call anything on the C instance, it would cause an infinite loop, wouldn't it?

[marstran]

Lets say C has a method f. A call to f is delegated to Delegate, which, if it would call f on its instance, would be delegated to itself again.

[Marko Mitic]

C would extend some class like Activity and have methods other than those in Iface

[Marko Mitic]

class C: Superclass(), Iface by Delegate(this as Superclass)

[Marko Mitic]

This would be composition where inheritance is usually used

[Ruckus]

How is delegating to yourself any different than just implementing the interface?

[Marko Mitic]

I'm trying to skip manual initialization step in this example here https://medium.com/@fardavide/composition-over-inheritance-on-activity-and-fragment-d484aa92e572

[karelpeeters]

I agree this would be very useful, so far I've only been able to work around it because I also have property delegate providers and "steal" the this instance there.

[Dico]

See implementation by delegation enhancements KEEP, https://github.com/Dico200/KEEP/blob/ibd-enhancements/proposals/implementation-by-delegation-enhancements.md

[Dico]

And poke JB, it's been some time 😅