> On Feb 13, 2017, at 10:19 AM, Karl Wagner <[email protected]> wrote:
> 
>> 
>>> 
>>> As I mentioned earlier, I don't think `closed` is a good keyword standing 
>>> alone. And I also think that, given that we have `open`, `closed` also 
>>> won't pair well with `public`—they sound like antonyms when they aren’t.
>> 
>> The semantics I am proposing do have an inverse relationship.  That said, it 
>> may not be an intuitive or immediately obvious inverse.  I am certainly not 
>> wedded to the idea of using `closed` as the keyword.
>> 
>>> 
>>> What I instead suggest is that we think of a closed enum as being like a 
>>> fragile (non-resilient) struct. In both cases, you are committing to a 
>>> particular design for the type. So I think we should give them both the 
>>> same keyword—something like:
>>> 
>>>     @fixed struct Person {
>>>             var name: String
>>>             var birthDate: Date
>>>     }
>>>     @fixed enum Edge {
>>>             case start
>>>             case end
>>>     }
>>> 
>> 
> 
> What about “final”?
> 

Final has a very different meaning: this type has no subtypes.
_______________________________________________
swift-evolution mailing list
[email protected]
https://lists.swift.org/mailman/listinfo/swift-evolution

Reply via email to