We don't need alias this for classes, we just need custom implicit conversion for...

...Letter(B);

struct Letter {
    char letter = 96;
    alias letter this;
}

import std.stdio;
void main...

...can inherit alias this from a base class and have your own alias this also...

...implementing multiple alias this (I just wanted to fix all the single alias this bugs...

...a struct.  There is a strange working alias in the build. The related problem may...

https://issues.dlang.org/show_bug.cgi?id=23620

Basile-z <b2.temp@gmx.com...

To me, the only flaw is how complicated the ruling on implicit casting become.

...limit the number of alias this expansions to 500. For multiple alias this, you probably...

Looks good to me, and its even implemented in a compiler and known to be...

I think that's reasonable too. It annoys me that there's repetition of dogmas...