I won’t complain a lot if it’s decided to be removed but I would prefer it to
stay. I use it constantly.
Sent from my iPad
> On 6 Nov 2017, at 22:41, Jon Shier via swift-evolution
> <swift-evolution@swift.org> wrote:
>
> I use this on all of my mutable optional properties, when I have to use
> them. It’s just that little extra bit of code I don’t need to write, and it
> feels a lot like parameter defaults in use. By surface area, I assume you
> mean the fact that it’s an implicit behavior people may need to remember? As
> something like that, this seems like a very small one. As for users knowing
> about it, I’m guessing it falls into one of those things that people just
> never explicitly notice but would likely have a huge impact on anyone with
> lots of mutable optionals. Developers from other languages may also assume
> this behavior, since it replicates the “nil by default” behavior seen in
> other languages.
> Ultimately, while I won’t feel this deeply, since I tend to view mutable
> optionals as poor practice in Swift, it’s a nice little convenience that will
> likely impact everyone using mutable optionals. If you really want to find
> out, perhaps run it agains the compatibility suite?
>
>
> Jon
>
>> On Nov 6, 2017, at 5:33 PM, Slava Pestov via swift-evolution
>> <swift-evolution@swift.org> wrote:
>>
>> Hi all,
>>
>> Right now, the following two declarations are equivalent:
>>
>> struct S {
>> var x: Int?
>> }
>>
>> struct S {
>> var x: Int? = nil
>> }
>>
>> That is, mutable bindings of sugared optional type (but not Optional<T>!)
>> always have a default value of ‘nil’. This feature increases the surface
>> area of the language for no good reason, and I would like to deprecate it in
>> -swift-version 5 with a short proposal. Does anyone feel strongly about
>> giving it up? I suspect most Swift users don’t even know it exists.
>>
>> Slava
>> _______________________________________________
>> swift-evolution mailing list
>> swift-evolution@swift.org
>> https://lists.swift.org/mailman/listinfo/swift-evolution
>
> _______________________________________________
> swift-evolution mailing list
> swift-evolution@swift.org
> https://lists.swift.org/mailman/listinfo/swift-evolution
_______________________________________________
swift-evolution mailing list
swift-evolution@swift.org
https://lists.swift.org/mailman/listinfo/swift-evolution
