[swift-evolution] Change subscripts to use colons

[Xiaodi Wu]

+1 as well. It always feels a little weird to be writing a setter inside
something that says it returns what should be the argument.
On Mon, Jul 11, 2016 at 00:05 Patrick Pijnappel via swift-evolution <
swift-evolution at swift.org> wrote:

> Good point. A subscript basically a parameterized property, not a
> function. I'm in favor.
>
> On Mon, Jul 11, 2016 at 9:18 AM, James Froggatt via swift-evolution <
> swift-evolution at swift.org> wrote:
>
>> Currently, the signature is:
>> subscript(_ example: Int) -> Element {
>>     get { … }
>>     set { … }
>> }
>>
>> The alternative, using a colon, would be:
>> subscript(_ example: Int) : Element {
>>     get { … }
>>     set { … }
>> }
>>
>> Sorry if that wasn't clear.
>>
>> This would be to better reflect the property-like nature of access.
>>
>> From James F
>>
>> On 10 Jul 2016, at 23:57, Brent Royal-Gordon <brent at architechies.com>
>> wrote:
>>
>> >> On Jul 9, 2016, at 11:48 AM, James Froggatt via swift-evolution <
>> swift-evolution at swift.org> wrote:
>> >>
>> >> Subscripts are a hybrid of properties and functions, since they have a
>> parameter list, as well as getters and setters, so use of either symbol
>> will be unusual in this case.
>> >>
>> >> However, I think a colon is more suitable, since it implies the
>> possibility to set the value.
>> >
>> > Can you show us an example of the current syntax and your proposed
>> replacement? I'm not sure what you actually mean by "use colons".
>> >
>> > --
>> > Brent Royal-Gordon
>> > Architechies
>> >
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>
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