Algebraic changing type when in associative array

[Paul Backus]

On Tuesday, 4 February 2020 at 11:45:50 UTC, rous wrote:
> I'm defining an Algebraic type like this:
> alias Expr = Algebraic!(This[char], string, int);
> However, when I create an Expr from an associative array of 
> chars and Exprs, the Exprs seem to change from Algebraic to 
> VariantN!32LU types. This is illustrated in the following error 
> message:
> cannot pass argument ex.opIndex(' ') of type VariantN!32LU to 
> parameter VariantN!(16LU, This[char], string, int) ex
> when I try to call a function that takes an Expr with ex[' '].
> If there is no way to ensure that it does not change type, is 
> there a way to cast it back?

Can you post an example program that illustrates the error? You 
shouldn't be getting two different sizes (16 and 32) for the same 
Algebraic type.