Classes as enums in D?

[Meta via Digitalmars-d-learn]

On Monday, 30 November 2015 at 10:22:54 UTC, Marc Schütz wrote:
> You're misinterpreting this:
>
>     enum X {
>         A = new Object,
>         B = new Object,
>     }
>
>     void main() {
>         import std.stdio;
>         writeln(cast(void*) X.A);
>         writeln(cast(void*) X.A);
>     }
>
> # output:
> 470910
> 470910
>
> You're print the address of `f` and `n` on the stack, not the 
> reference they're pointing to.
>
> But it's true that enums of mutable _arrays_ do create a new 
> instance every time they're used:
>
>     enum X {
>         A = [1,2,3],
>         B = [4,5,6],
>     }
>
>     void main() {
>         import std.stdio;
>         writeln(X.A.ptr);
>         writeln(X.A.ptr);
>     }
>
> # output:
> 7FD887F0E000
> 7FD887F0E010

Whoops, you're right. I forgot you have to cast to a pointer for 
classes.