Re: Getting FieldNameTuple including all base-classes.

[Paul Backus via Digitalmars-d-learn]

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);