Opt-in non-null class references?

[arturg]

On Saturday, 3 March 2018 at 18:28:42 UTC, aliak wrote:
> On Friday, 2 March 2018 at 19:47:23 UTC, SimonN wrote:
>
> If you know of other ways though I'm all ears :)
>
> Cheers

maybe not exactly what you want, but here are some templates i 
wrote a while ago which basically are a more flexible form of the 
?. operator.

https://run.dlang.io/gist/598c59506699a0f81c3abbbaf7d5feee?compiler=dmd