Article: Writing Julia style multiple dispatch code in D

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On Friday, 25 August 2017 at 00:35:24 UTC, jmh530 wrote:
> What you seem concerned about here is how to produce a 
> meaningful error message for distribution that you do not have 
> implementations for. A slightly more elegant solution would be 
> to pack the structs into an AliasSeq and then use something 
> like !allSatisfies to test them all. I'm sure there's a more 
> elegant solution, but that's the first thing I thought of.
>

Andrei suggested allSatisfies that as an alternative approach to 
a Union keyword similar to Julia, at the time I was still stuck 
on how cool having a Union keyword like Julia's in D would be.

>>
>> immutable class(T...){...}
>
> What you're looking for is an immutable constructor:
>
> class C
> {
>     this() immutable;
> }

Aha, thanks!