[swift-evolution] Proposal: change infix operator attributes syntax to be more consistent with the rest of the language

[Kevin Lundberg]

I only say attribute because that is what the grammar calls it in TSPL and I wanted to be precise. I agree that it is not an ideal name and that should probably also change in the docs. 

--
Kevin Lundberg

> On Mar 6, 2016, at 12:59 AM, Dave Abrahams via swift-evolution <swift-evolution at swift.org> wrote:
> 
> 
>> on Sat Mar 05 2016, Kevin Lundberg <swift-evolution at swift.org> wrote:
>> 
>> Ever since Swift 1.0 I've found the infix operator attribute syntax strange:
>> 
>> infix operator <> { associativity left precedence 100 }
>> 
>> The value of the attribute has no visual cue that ties it to the name of
>> the attribute. One could arguably read left as its own attribute name
>> rather than the value set to the associativity attribute, or could read
>> the wrong pair as one attribute, like "left precedence".
>> 
>> In the spirit of Erica Sadun's recent proposal ... using : over =, I'd
>> like to see operator declaration syntax follow a similar structure:
>> 
>> infix operator <> { associativity: left, precedence: 100 }
> 
> <schnipp>
> 
>> Any thoughts?
> 
> LGTM, but  you shouldn't use the term “attribute” here; it has a
> different meaning in Swift and it's *really* confusing when reading your
> proposal.
> 
> -- 
> -Dave
> 
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