Getting FieldNameTuple including all base-classes.

[Paul Backus]

On Tuesday, 19 May 2020 at 23:15:45 UTC, realhet wrote:
> Hi,
>
> I was able to reach all the fields in a subclass using foreach 
> and BaseClassesTuple, but is there a way to do this using 
> functional programming primitives, but in compile time for 
> tuples?
>
> private template FieldNameTuple2(T) {
>   enum FieldNameTuple2 = BaseClassesTuple!T.map!(S => 
> FieldNameTuple!S).join;
> }
>
> This is obviously wrong, but is there a way to do it?
>
> I've searched for FieldNameTuple and BaseClassesTuple, but 
> without luck. It's weird because it seems like a common thing 
> to do.
>
> Thanks in advance!

I think what you want is `std.meta.staticMap`. Something like 
this:

alias FieldNameTuple2(T) = staticMap!(FieldNameTuple, 
BaseClassesTuple!T);