[swift-evolution] Remove default case in switch-case

[Jeremy Pereira]

-1 from me.

- The meaning of “default” is more understandable and readable
- You can already use "case _" if you really want
- pretty much  the entire existing Swift codebase would need to be changed if default was removed (and the existing code base will be much bigger by the time Swift 3 comes in).

I know backward compatibility isn’t considered to be a bar to accepting changes to Swift, but this does not mean it should be simply dismissed.  

> On 10 Dec 2015, at 20:06, Rudolf Adamkovic via swift-evolution <swift-evolution at swift.org> wrote:
> 
> +1 for using "case _" instead of "default". It communicates programmer's intent clear and loud. Also it didn't occur to me to use it. :)
> 
> R+
> 
> Sent from my iPhone
> 
>> On 10 Dec 2015, at 03:51, Casey Cady via swift-evolution <swift-evolution at swift.org> wrote:
>> 
>> FWIW, I think "default" is nicely expressive, and the _ construct always weirds me out just a little bit because while I understand it, it's not even a little bit intuitive to someone first learning a language.
>> 
>> As an aside, I'd think that this list, and the discussion and transparency that it provides is awesome. Insanely great, even.
>> 
>> Thanks!
>> Casey
>> 
>> On Dec 9, 2015, at 6:37 PM, Matthew Johnson via swift-evolution <swift-evolution at swift.org> wrote:
>> 
>>>> 1) We have had default and “case _” ever since Swift has been public.  If you look at bodies of existing swift code, they almost unanimously use “default” instead of “case _”.  This argues that default is more familiar and more widely used.  It isn’t some legacy barnacle on the side that people generally ignore.
>>> 
>>> I don’t have a strong feeling on this one way or the other, but I think it’s probably safe to say that the reason default is more familiar and widely used is because pretty much all the documentation I have seen does it that way, not because people like it better or because it is necessarily easy to understand.  If the documentation was written using "case _" I think we would see that be the familiar and widely used variation.
>>> 
>>> _______________________________________________
>>> swift-evolution mailing list
>>> swift-evolution at swift.org
>>> https://lists.swift.org/mailman/listinfo/swift-evolution
>> _______________________________________________
>> swift-evolution mailing list
>> swift-evolution at swift.org
>> https://lists.swift.org/mailman/listinfo/swift-evolution
> _______________________________________________
> swift-evolution mailing list
> swift-evolution at swift.org
> https://lists.swift.org/mailman/listinfo/swift-evolution