> On Jul 20, 2016, at 7:51 AM, Vladimir.S via swift-evolution
> <[email protected]> wrote:
>
> +1 to clean up the syntax of subscripts. They acts as properties, not
> methods, so it is natural to express them with `:` and not with `->`.
>
> Actually, I'd prefer additional change to use [] instead of () in declaration
> like:
>
> subscript[externalName internalName: ParamType] : ElementType {
> get { … }
> set { … }
> }
I got to second this suggestion. To me this is an elegant solution.
If subscripts are so special that Swift decided to give it its own name (as
oppose to just making it two functions),
why not declare it in a special way like the above?
I think that in addition to replacing -> with : if we replaced () with [] then
it would be much clearer that this is not a function or property.
subscript[externalName internalName: ParamType] : ElementType {
get { … }
set { … }
}
I don’t see another place in the language where [] would make more sense than
here:
Otherwise I don’t see replacing -> with : as a big win like Dmitri Gribenko
said down thread ->
>> I think by changing subscripts to use colons we would end in the opposite,
>> but
>> totally symmetrical situation compared to what we have now.
>
> especially if thinking about "Future directions" and confusion with
> parameterised accessor syntax(both declared with `()` but first used with
> `[]` and second with `()`).
>
> On 20.07.2016 8:50, Chris Lattner via swift-evolution wrote:
>> Hello Swift community,
>>
>> The review of "SE-0122: Use colons for subscript declarations " begins now
>> and runs through July 24. The proposal is available here:
>>
>>
>> https://github.com/apple/swift-evolution/blob/master/proposals/0122-use-colons-for-subscript-type-declarations.md
>>
>> Reviews are an important part of the Swift evolution process. All reviews
>> should be sent to the swift-evolution mailing list at
>>
>> https://lists.swift.org/mailman/listinfo/swift-evolution
>>
>> or, if you would like to keep your feedback private, directly to the review
>> manager.
>>
>> What goes into a review?
>>
>> The goal of the review process is to improve the proposal under review
>> through constructive criticism and contribute to the direction of Swift.
>> When writing your review, here are some questions you might want to answer
>> in your review:
>>
>> * What is your evaluation of the proposal?
>> * Is the problem being addressed significant enough to warrant a change
>> to Swift?
>> * Does this proposal fit well with the feel and direction of Swift?
>> * If you have used other languages or libraries with a similar feature,
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>>
>> More information about the Swift evolution process is available at
>>
>> https://github.com/apple/swift-evolution/blob/master/process.md
>>
>> Thank you,
>>
>> -Chris Lattner
>> Review Manager
>>
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