[swift-evolution] Proposal SE-0009 Reconsideration
sean at fifthace.com
Thu May 19 13:12:43 CDT 2016
I think it is too easy to just add warnings for warts and call it a day. These problems, IMO, should be addressed somehow eventually - but not with a warning. Either Swift decides these situations are errors and refuses to enable them at all, or the constructs involved should be carefully reconsidered and changed to prevent them from even happening or being encouraged in the first place.
So in short: I too do not agree to adding optional warnings. :)
> On May 19, 2016, at 12:58 PM, David Waite via swift-evolution <swift-evolution at swift.org> wrote:
> I believe the Swift Team has previously stated they do not want opt-in warnings defining alternate swift ‘grammars’. I don’t believe there are any existing -W flags for the compiler, for instance.
> If there is shadowing warning added, I’m of the opinion it should work similar to the override keyword.
>> On May 19, 2016, at 11:28 AM, Vladimir.S via swift-evolution <swift-evolution at swift.org> wrote:
>> On 18.05.2016 22:43, Krystof Vasa wrote:
>>> I agree that shadowing variables is not a good idea, but I stand by my
>>> point that it's potentially dangerous and error-prone to allow accessing
>>> instance variables without `self`.
>> Could we all agree that we need these options:
>> 1. option to turn on warnings on accessing instance variables without `self`
>> 2. option to turn on warnings on shadowing
>> And that by default, none of that options should be enabled.
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