[swift-evolution] [Proposal] Improving operator requirements in protocols

David Sweeris davesweeris at mac.com
Mon May 2 18:26:51 CDT 2016

> On May 2, 2016, at 5:58 PM, Chris Lattner via swift-evolution <swift-evolution at swift.org> wrote:
> On May 2, 2016, at 1:56 PM, Dave Abrahams via swift-evolution <swift-evolution at swift.org> wrote:
>>>   How does one distinguish between calls to a static prefix operator and a
>>>   static postfix operator with the same name?
>>> Ah, that's a tricky one that I don't have an immediate answer to, so I'm
>>> definitely open to creative thoughts here.
>> One possibility: just use “qualified operator” notation.
>>   lhs T.+= rhs
>>   T.++x
>>   x T.++
> I’m not sure if this is exactly right, but it seems close.  I think that something like this is probably the best way to go, since it composes properly in arbitrary expressions.  It does have a surface level weirdness to it, but it also "makes sense” in terms of how operators work.  
Yeah… Maybe with parens?
Or is that worse?

- Dave Sweeris
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