On Wed, Jun 15, 2016 at 8:43 AM, Антон Жилин <swift-evolution@swift.org> wrote:
> `b + c * d / e` is not, obviously. > `a ? b : c + x + y` -- I'd also say not, because, well, it's ternary > operator, the special case that everyone should know (otherwise it looks > like a mess with ? and : operators). > `a ?? x + y + z` -- maybe. If not for analogies with || and && and knowing > about @autoclosure, I'd say that priority of ?? should be very high. > > Now that I think about it, if job of SE-0077 could be done with a linter, > then... do we still need it? > Well, I for one would veer conservative on this one and say that there is a place for precedence in operators, if only because the mathematical ones (the majority of them) are commonly used and unambiguous. I think SE-0077 raises some good points. But as to whether `a ?? x + y + z` should be forced to have parentheses, you have a point here that this might be territory for a linter. > > - Anton > > 2016-06-15 16:00 GMT+03:00 Vladimir.S <sva...@gmail.com>: > >> As I understand, the question is if >> >> `a ?? x + y + z` >> and >> `a ? b : c + x + y` >> (or `b + c * d / e`) >> >> an "ambiguous case" ? >> >> >> On 15.06.2016 15:42, Антон Жилин via swift-evolution wrote: >> >>> It's tempting to mention SE-0077 in this context. If it's accepted, we >>> will >>> be able to make omission of parentheses an error in ambiguous cases. >>> >>> - Anton >>> >>> >>> _______________________________________________ >>> swift-evolution mailing list >>> swift-evolution@swift.org >>> https://lists.swift.org/mailman/listinfo/swift-evolution >>> >>> > > _______________________________________________ > swift-evolution mailing list > swift-evolution@swift.org > https://lists.swift.org/mailman/listinfo/swift-evolution > >
_______________________________________________ swift-evolution mailing list swift-evolution@swift.org https://lists.swift.org/mailman/listinfo/swift-evolution