Copy Constructor DIP

[Andrei Alexandrescu]

On 07/12/2018 11:29 AM, Luís Marques wrote:
> On Thursday, 12 July 2018 at 15:25:10 UTC, Luís Marques wrote:
>> On Thursday, 12 July 2018 at 15:14:19 UTC, Luís Marques wrote:
>> BTW: Multiple alias this is still planned for inclusion in D, right? 
>> If so, what would be the (pratical?) difference between having copy 
>> ctors with such a relaxed type requirement and just defining an 
>> equivalent alias this method? In case the answer is that there's no 
>> significant difference, why not drop multiple alias this, then?
> 
> Sorry for the stream-of-conscience type posts. But, to clarify further: 
> if alias this provides access to the members of the converted type 
> (besides type conversion), couldn't that feature be folded into the same 
> mechanism of the copy ctor (or vice-versa), to avoid mostly redundant 
> features in the language, with subtle interactions?

The DIP mentions the interaction of @implicit with alias this.