How to print current type of a SumType?

[Chris Piker]

On Sunday, 1 October 2023 at 01:17:50 UTC, Chris Piker wrote:
> ```d
> alias Vec3 = SumType!(void* /* invalid vector */, byte[3], 
> short[3], char[][3]);
>
> ```


I know it's bad form to reply to my own question, but I think I 
found a reasonably simple way:

```d
string prnType(Vec3 vec){
    return vec.match!( t => typeof(t).stringof);
}
```

which is hardly worth making into a function of it's own.  Other 
suggestions are welcome of course.

SumTypes are really tripping me up.  Unlearning years of writing 
C takes more time then I'd prefer.