[swift-evolution] Add code to super methods.

[Tino Heth]

> What are your thoughts on this?
> 
> Just to throw out a strawman:
> 
> // Warn if override doesn’t begin with “super.foo()”
> __attribute(swift_requires_super_call_at_begin) 
> 
>  // Warn if override doesn’t end with “super.foo()”
> __attribute(swift_requires_super_call_at_end)

I myself would already be happy if Swift had an equivalent to NS_REQUIRES_SUPER (preferably with a different name ;-).
The ability to indicate that super shouldn't be called when overriding would be nice as well — both situations happen in Cocoa, and it isn't enforced, but only documented.

I don't have any examples where the position of the call to super matters, and my personal opinion is that this feature wouldn't pay off:
Of course, there are situations where order is important — but as with willSet/didSet, it might only be important for the overriding class, not for super.

- Tino
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.swift.org/pipermail/swift-evolution/attachments/20161125/7e503b2c/attachment.html>