> What is your evaluation of the proposal?
-1. Argument labels can have meaning and are very useful, especially for
default parameter names in closures:
```// Declaration
func handleResponse(handler: (response: Response) -> ())
// Callsite
handleResponse { response in // response automatically implied as the parameter
name, clarifying usage.
...
}
```
I’d prefer we leave the existing behavior or consider the alternative solution
to prohibit implicit subtyping.
>Does this proposal fit well with the feel and direction of Swift?
I don’t feel that it does. I’ve always felt that being able to declare function
types with named parameters was a powerful feature that allowed more
expressivity in the language.
``` // Clear that the first String argument is the message and that the second
is the sender
let messageHandler: (message: String, sender: String) -> ()
// Not clear what these parameters are
let messageHandler: (String, String) -> ()```
> If you have used other languages or libraries with a similar feature, how do
> you feel that this proposal compares to those?
The closest comparison I can think of are Objective-C selectors, but these are
more powerful and type-safe. I think it’s a real strength of the language.
> How much effort did you put into your review? A glance, a quick reading, or
> an in-depth study?
A quick reading, and I have used function declarations with and without labels
extensively.
> Hello Swift community,
>
> The review of "SE-0111: Remove type system significance of function argument
> labels" begins now and runs through July 4. The proposal is available here:
>
> https://github.com/apple/swift-evolution/blob/master/proposals/0111-remove-arg-label-type-significance.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:
>
> * 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, how
> do you feel that this proposal compares to those?
> * How much effort did you put into your review? A glance, a quick reading, or
> an in-depth study?
>
> 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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