Using closure in function scope to make "real" private class members

[Ola Fosheim Grøstad]

On Wednesday, 8 June 2022 at 13:14:43 UTC, Ola Fosheim Grøstad 
wrote:
> there is a good reason for having "@safe" and "@pure", the 
> grammar ought to be unambiguous with "safe" and "pure" without 
> making them keywords.

Ack, it is "pure" (I never use it) but "@nogc", "@trusted" etc.

Maybe it is possible to add «hidden» without making it a keyword? 
I guess one will have to look at the productions for the 
internals of a class body.

I suspect a lot of the @keywords could go if one wrote a new 
parser from scratch.