Re: std.sumtype nested SumTypes

[Paul Backus via Digitalmars-d-learn]

On Monday, 22 January 2024 at 21:11:17 UTC, NonNull wrote:

I'd like SumType to combine the implicit tags so there's only 
one tag.

SumType does not do this automatically (because sometimes you 
might want to keep the inner SumTypes separate), but you can do 
it yourself like this:

    alias A = SumType!(X, Y);
    alias B = SumType!(Z, W);
    alias C = SumType!(A.Types, B.Types);