How do you suggest a closure indicate its purity? Something like this?
{ pure in $0.property }
> On Feb 17, 2017, at 10:57 AM, Florent Vilmart <[email protected]> wrote:
>
> We were discussing the topic yesterday with others and some suggested adding
> a pure keyword, for improved readability, just before the function
> declaration:
>
> Ex:
>
> pure func(a:Some) -> Else {}
>
>
>
> On Feb 17, 2017, 11:51 AM -0500, Matthew Johnson via swift-evolution
> <[email protected]>, wrote:
>>
>>> On Feb 17, 2017, at 10:46 AM, David Sweeris via swift-evolution
>>> <[email protected] <mailto:[email protected]>> wrote:
>>>
>>>
>>> On Feb 17, 2017, at 08:21, Adrian Zubarev via swift-evolution
>>> <[email protected] <mailto:[email protected]>> wrote:
>>>
>>>> I haven’t yet read all the feedback in this topic but I’d like to throw
>>>> some bikeshedding of mine into the room. :)
>>>>
>>>> How about this?
>>>>
>>>> Version 1: func(pure) …
>>>> Version 2: func label(…) ~> ReturnType
>>> Version 2 is going to upset those who use "~>" as an operator.
>>>
>>> As the # of possible attributes grows, having an obvious grouping mechanism
>>> for them, like version 1, might be worthwhile simply to help make the list
>>> clearer. What about allowing "@(list, of, attributes)" instead of "@list,
>>> @of, @attributes”?
>>
>> That would be a little bit awkward for attributes that are parameterized.
>> And if we did do this we should allow the parens to be omitted when there is
>> only one attribute.
>>
>>>
>>> - Dave Sweeris
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