Sent from my iPad

> On May 7, 2017, at 1:12 PM, Xiaodi Wu via swift-evolution 
> <[email protected]> wrote:
> 
> Today these keywords have no meaning inside a protocol, so clearly it should 
> be an error to use it in that context. I agree with Jordan that the error 
> should be on the protocol.
> 
> It's entirely a different conversation whether the keyword should have 
> meaning or not. If it should, it seems to me it should be limited to 
> protocols that are limited to classes. But that's an additive feature we can 
> discuss later.

Why would it make sense to limit this to class-constrained protocols?  It would 
obviously make sense to limit it to properties of class or class-constrained 
type but I see no reason why an arbitrary restriction to class-constrained 
protocols would make sense even if that was how it is most commonly used.

> 
> The source-breaking bug fix that is more pressing today is removing 
> meaningless keywords that can be misleading to users, because they have no 
> effect but look like they should.
>> On Sun, May 7, 2017 at 11:00 Goffredo Marocchi via swift-evolution 
>> <[email protected]> wrote:
>> It would be useful to have a longer discussion on this as... I think that 
>> weak has a place there and should be enforced as a protocol is the public 
>> facing interface/api for the types who decide to adopt it.
>> 
>> Sent from my iPhone
>> 
>> > On 7 May 2017, at 15:41, Adrian Zubarev via swift-evolution 
>> > <[email protected]> wrote:
>> >
>> > browse
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