DIP Draft Review News

[Yuxuan Shui]

On Monday, 4 June 2018 at 05:46:04 UTC, rikki cattermole wrote:
> On 04/06/2018 5:01 PM, Mike Parker wrote:
>> Named arguments lite
>
> I'm concerned about this DIP (keep in mind I wrote a referenced 
> WIP DIP).
>
> 1. Reordering of parameters that match (with overloads)
>
> ```D
> int add(int a, int b);
> int add(int b, int a) { ... }
> ```
>
> This part of the DIP needs quite a bit of filling out and I 
> expect to have a lot of corner cases.
>
> Are you saying that you have an add that is extern'd or do you 
> mean a named argument function overload? By conventional wisdom 
> it definitely should error out.

Not sure what you meant? This definitely does not error out: 
https://godbolt.org/g/PAiFPw

>
> 2. All or nothing.
>
> ```D
> int add(int x, int y);
> @named:
> int add(int b, int a) { ... }
> ```
>
> This is one of the reasons some people /don't/ want named 
> arguments and have said that they out right would not use a 
> language with it.
>

Care to elaborate why? In this DIP, name prefix on caller side is 
optional, caller is allowed to leave out any number of argument 
names if they want.