[swift-evolution] Control Flow Expressions

[Jonathan Hull]

Don’t we already have the following?

let message:String = (x % 2) ? “x is even” : “x is odd"
 

> On Dec 5, 2015, at 7:02 AM, J. Cheyo Jimenez <cheyo at masters3d.com> wrote:
> 
> Hi Sergey,
> 
> Are you thinking on writing the formal proposal for the if expression? 
> 
> https://lists.swift.org/pipermail/swift-evolution/2015-December/000165.html <https://lists.swift.org/pipermail/swift-evolution/2015-December/000165.html>
> 
> 
> On Friday, December 4, 2015, Sergey Shulepov <s.pepyakin at gmail.com <mailto:s.pepyakin at gmail.com>> wrote:
> Hello.
> 
> It would be cool if control flow statements like "switch", "if" can be used as expressions, such as in languages like Scala, Rust and Kotlin,
> so instead of writing:
> 
> var message: String
> if x % 2 == 0 {
>  message = "x is even"
> } else {
>  message = "x is odd"
> }
> 
> you can write:
> 
> let message: String = if x % 2 == 0 { "x is even" } else { "x is odd" }
> 
> I'm not into any kind of compiler development, and don't know is it feasible to introduce such change at the moment, but at least, I would like to hear why not.
> Thanks!
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