sumtypes for D

[zjh]

On Monday, 28 November 2022 at 21:22:55 UTC, Walter Bright wrote:
> On 11/28/2022 7:53 AM, IGotD- wrote:
>> Actually creating a preview as well can help as then 
>> programmers can try it out an observe how behaves in their own 
>> code. That can be valuable input for the DIP.
>
> Implementing it will be a substantial amount of work (as 
> opposed to the trivial ImportC), so I'm reluctant to do so 
> without a pretty positive response.


Can a `dip` be similar to a `plug-in`? As long as the `dip` 
author implements the corresponding `interface`, there will be a 
command line `preview` for it automatically?