An example of typeclasses/traits/protocols/concepts in D with interfaces

[sighoya]

On Wednesday, 23 December 2020 at 14:23:34 UTC, Adam D. Ruppe 
wrote:
> On Wednesday, 23 December 2020 at 14:20:39 UTC, sighoya wrote:
>> 1.) Can't we import aliases from other modules or am I just 
>> too dumb to see how?
>
> plain import includes aliases....
>

Strange, because importing alias Instance(T:Number!double) = 
DoubleNumber; doesn't work it complains with errors.


>> 2.) it would be nice to unscope the methods of a type
>
> that's what the `with` keyword does
>
> T square(T, alias Implementor...) {
>    with(Implementor) {
>          // here
>    }
> }

Nice, I wasn't aware of this, is akin to that possible for 
runtime objects?