Sum Type by Struct

[Richard (Rikki) Andrew Cattermole]

On 22/09/2024 10:43 PM, IchorDev wrote:
> On Thursday, 12 September 2024 at 11:28:56 UTC, Richard (Rikki) Andrew 
> Cattermole wrote:
>> In this proposal I propose a third sumtype design, one in which it is 
>> based upon structs.
> 
> One huge improvement would be to make the declaration syntax the same as 
> that of structs as well. This would make it more consistent with the 
> rest of the language, and allow conditional compilation statements, and 
> potentially things like constructors and member functions. I suggest a 
> `case` prefix like in Swift:
> ```d
> sumtype A{
>    version(Nullable) case :None;
>    case int, string text;
> }
> ```

I did have a similar syntax in the original version prior to this.

For the time being perhaps it would be better to leave it out.

I'll think about it.