DIP 1030--Named Arguments--Community Review Round 1 Discussion

[Timon Gehr]

On 07.02.20 16:28, Steven Schveighoffer wrote:
>>
>> It does add the syntax, and I would argue it is not ideal if this 
>> fails to pass semantic analysis.
> 
> Yes, it's valid syntax, but shouldn't pass semantic -- you named 
> arguments that aren't present (AliasSeq does not have parameters named a 
> b or c).
> ...

So you are arguing that e.g., std.typecons.Proxy should fail to work 
with named arguments?

> But the DIP isn't 100% clear that named variadics cannot receive 
> NamedParameter items. It says extra parameters match the "trailing ... 
> of variadic parameter lists and Identifiers are not allowed". Not all 
> variadic functions have a trailing ... without a name. I would think 
> AliasSeq!(TList: 1, 2, 3) should be valid.
> 
> -Steve

Why is that more useful than support for forwarding?