[swift-evolution] Control Flow Expressions

[Jonathan Hull]

Sorry, that should be:

let message:String = (x % 2 == 0) ? “x is even” : “x is odd”

> On Dec 5, 2015, at 7:35 AM, Jonathan Hull <jhull at gbis.com> wrote:
> 
> 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 <mailto: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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> 
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