On 4/8/16 02:59, Chris Lattner via swift-evolution wrote:
>> On Apr 7, 2016, at 1:39 PM, Антон Жилин via swift-evolution
>> <[email protected]> wrote:
>> Link for newcomers:
>> https://github.com/Anton3/swift-evolution/blob/operator-precedence/proposals/NNNN-operator-precedence.md
>>
>> <https://github.com/Anton3/swift-evolution/blob/operator-precedence/proposals/NNNN-operator-precedence.md>
>>
>> Sadly, I've moved into the territory opposite to what I had in mind in the
>> beginning: absense of conflict resolution.
>> I wanted lightweight directives, but am moving to closed precedence groups.
>>
>> It's just IMHO, and I think I just need input on this from more people. I
>> still have not heard anything from Core team.
> ...
> I’m sorry for the delay, I have been out of town recently. I haven’t read
> the upstream thread so I hope this isn’t too duplicative. Here is my 2c:
>
> - I completely agree that numeric precedences are lame, it was always the
> “plan” that they’d be removed someday, but that obviously still hasn’t
> happened :-)
+10!
> - I definitely agree that a partial ordering between precedences is all that
> we need/want, and that unspecified relations should be an error.
> ...
> Question for you: have you considered introducing named precedence groups,
> and having the relationships be between those groups? For example, I could
> see something like:
>
> operator group additive {}
> operator group multiplicative { greaterThan: additive }
> operator group exponential { greaterThan: additive }
Also +10, would be interested in your opinion about:
1) disallowing adding new operator groups outside the stdlib;
2) disallowing adding operators to uncommon groups like subscripting,
function calls, etc.
TIA...
--
Rainer Brockerhoff <[email protected]>
Belo Horizonte, Brazil
"In the affairs of others even fools are wise
In their own business even sages err."
http://brockerhoff.net/blog/
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