[swift-evolution] [Pitch] Make the first parameter in a function declaration follow the same rules as the others

[Jordan Rose]

Ah, this doesn't distinguish

func foo(bar baz: Int)

from

func foo(bar bar: Int)

That's pretty important for this discussion.

(Thanks for actually doing this! I just let it drop last week.)

Jordan

> On Mar 14, 2016, at 16:01 , Shawn Erickson via swift-evolution <swift-evolution at swift.org> wrote:
> 
> I could have easily screwed up my grep but doing spot checks on the resulting data sets I didn't spot an issue. I did make assumptions about how well formed the data set was.
> 
> [shawnce:~/Downloads/swift-3-api-guidelines-review-swift-3]
> [0:554]> grep -R "func [A-Za-z0-9]*([A-Za-z0-9]* [A-Za-z0-9]*:" Platforms/ | wc -l
>    10587
> 
> [shawnce:~/Downloads/swift-3-api-guidelines-review-swift-3]
> [0:555]> grep -R "func [A-Za-z0-9]*(_ [A-Za-z0-9]*:" Platforms/ | wc -l
>    21654
> 
> [shawnce:~/Downloads/swift-3-api-guidelines-review-swift-3]
> [0:556]> grep -R "func [A-Za-z0-9]*([A-Za-z0-9]* _:" Platforms/ | wc -l
>        0
> 
> [shawnce:~/Downloads/swift-3-api-guidelines-review-swift-3]
> [0:557]> grep -R "func [A-Za-z0-9]*([A-Za-z0-9]*:" Platforms/ | wc -l
>       14
> 
> [shawnce:~/Downloads/swift-3-api-guidelines-review-swift-3]
> [0:558]> grep -R "func [A-Za-z0-9]*()" Platforms/ | wc -l
>     7190
> 
> ----
> 
> [shawnce:~/Downloads/swift-3-api-guidelines-review-swift-3]
> [0:559]> grep -R "func [A-Za-z0-9]*([A-Za-z0-9]* [A-Za-z0-9]*:" SampleCode/ | wc -l
>       12
> 
> [shawnce:~/Downloads/swift-3-api-guidelines-review-swift-3]
> [0:560]> grep -R "func [A-Za-z0-9]*(_ [A-Za-z0-9]*:" SampleCode/ | wc -l
>        0
> 
> [shawnce:~/Downloads/swift-3-api-guidelines-review-swift-3]
> [0:561]> grep -R "func [A-Za-z0-9]*([A-Za-z0-9]* _:" SampleCode/ | wc -l
>        0
> 
> [shawnce:~/Downloads/swift-3-api-guidelines-review-swift-3]
> [0:562]> grep -R "func [A-Za-z0-9]*([A-Za-z0-9]*:" SampleCode/ | wc -l
>      512
> 
> [shawnce:~/Downloads/swift-3-api-guidelines-review-swift-3]
> [0:563]> grep -R "func [A-Za-z0-9]*()" SampleCode/ | wc -l
>      221
> 
> 
> On Mon, Mar 14, 2016 at 3:28 PM Dave Abrahams via swift-evolution <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
> 
> on Sun Mar 13 2016, Shawn Erickson <swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
> 
> > On Fri, Mar 11, 2016 at 1:30 PM Dave Abrahams via swift-evolution <
> > swift-evolution at swift.org <mailto:swift-evolution at swift.org>> wrote:
> >
> >>
> >> Anyone who wants to measure is free to do so: simple regexps and wc
> >> generally work for this purpose.
> >>
> >>
> >> https://github.com/apple/swift-3-api-guidelines-review/tree/swift-3/Platforms <https://github.com/apple/swift-3-api-guidelines-review/tree/swift-3/Platforms>
> >>
> >
> > Not sure if anyone actually got around to this so doing a basic set of
> > regex (includes class functions and overrides)...
> >
> > func foo(bar baz:Baz... ---> 10544
> > func foo(baz:Baz... ---> 526
> > func foo(_:Baz... ---> 92
> > func foo() ---> 7392
> 
> Are you certain?  Last we checked it was about 50/50 between having and
> not-having a distinct argument label.
> 
> --
> -Dave
> 
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