[swift-evolution] /*Let it be*/ func() -> @discardable Bool {} /*Rather Than*/ @discardableResult func() -> Bool {}

[Taylor Swift]

I agree with this, function signatures in Swift are long enough as it is,
fitting them in 80 characters is hard enough already

On Mon, Oct 9, 2017 at 11:14 AM, Adrian Zubarev via swift-evolution <
swift-evolution at swift.org> wrote:

> async is a keyword where as @discardableResult is an attribute. This pitch
> does not include any advantages over the current form. In fact this will
> rather harm the readbility because you no longer can nicely put the
> annotation above the function and it won’t play well with other keywords
> like throws, rethrows and async.
>
> @discardableResult
> funx foo() { /* ... */  }
>
> So -1 for this pitch.
> --
> Adrian Zubarev
> Sent with Airmail
>
> Am 9. Oktober 2017 um 18:02:14, Dave DeLong via swift-evolution (
> swift-evolution at swift.org) schrieb:
>
>> Oooo, I really like this.
>>
>> It also brings up an interesting point on the whole async discussion.
>> Doesn’t the async apply to the *return value* and not the other stuff?
>>
>> IE instead of:
>>
>> async func getBool() → Bool
>>
>> It could be:
>>
>> func getBool() → async Bool
>>
>> Dave
>>
>> On Oct 9, 2017, at 9:58 AM, Fil Ipe via swift-evolution <
>> swift-evolution at swift.org> wrote:
>>
>> I find it extremely cumbersome to have to precede a function declaration
>> with such an extensive annotation such as @discardableResult
>>
>> Now that so many functions do need this annotation to be there, our code
>> became so ugly.
>>
>> Besides, having this annotation precede the function declaration kind of
>> reminds me of C rather than Swift. Since in C the function declarations
>> started by the type of the return value.
>>
>> I, therefore, think it would be much softer on the eye, and much more
>> precise in intent, to instead precede the result of a func with a simpler
>> and shorter @discardable annotation
>>
>> So it would be:
>>
>> func() -> @discardable Bool { }
>>
>> Rather than:
>>
>> @discardableResult func() -> Bool { }
>>
>> It could be even better if someone could perhaps find a shorter word that
>> is a synonym for the word "discardable", that would be as explicit in
>> intent as the word "discardable" is in such context, yet be written with
>> fewer characters.
>>
>> Swift regards,
>> Filipe Sá.
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>>
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>
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