[swift-evolution] Should we incorporate bunches of new operators / micro-syntactic sugar?

[Benoit Pereira da silva]

Stephen,

You are right the proposal #0024 is very close.
But in fact the logic is inverted.  

When using «=? » the right item is optional.
a =? b assigns « b »  to « a »  only if « b »  is defined.
So if an optional is defined =? will not erase its value.

But my real questions was…
Do you have such operators that you really use very often?
Should we incorporate bunches of new operators / micro-syntactic sugar?
Is swift evolution the good place to discuss such question?

I don’t want to pollute your mail boxes.

Best regards,

B

> Le 21 déc. 2017 à 19:12, Stephen Celis <stephen.celis at gmail.com> a écrit :
> 
> Such an operator was proposed here: https://github.com/apple/swift-evolution/blob/60a8980a66a0a1341871ec323797c5547d0e0925/proposals/0024-optional-value-setter.md <https://github.com/apple/swift-evolution/blob/60a8980a66a0a1341871ec323797c5547d0e0925/proposals/0024-optional-value-setter.md>
> 
> It was ultimately rejected: https://lists.swift.org/pipermail/swift-evolution-announce/2016-February/000043.html <https://lists.swift.org/pipermail/swift-evolution-announce/2016-February/000043.html>
> 
> Stephen
> 
>> On Dec 21, 2017, at 11:44 AM, Benoit Pereira da silva via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
>> 
>> Dear all,
>> 
>> That’s not ambitious but i think worth be explored.
>> 
>> What do you think for example of this Infix operator?
>> « =? »  allows to express optional assignments  in a very concise way.
>> 
>> 
>> // The `=? operator allows simplify optional assignements :
>> //  `a = b ?? a` can be written : `a =? b`
>> infix operator =?: AssignmentPrecedence
>> 
>> public func =?<T> ( left:inout T?, right: T? ){
>>     left = right ?? left
>> }
>> 
>> public func =?<T> ( left:inout T, right: T? ){
>>     left = right ?? left
>> }
>> 
>> 
>> Do you have such operators that you really use very often?
>> 

Benoit Pereira da Silva
Ultra Mobile Developer & Movement Activist
Développeur Ultra Mobile & Militant du mouvement
https://pereira-da-silva.com <https://pereira-da-silva.com/>





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