Template mixin statements?

[Simen Kjærås]

On Friday, 18 January 2019 at 11:07:10 UTC, NaN wrote:
> Template mixins can only mixin declarations. Was it ever 
> considered to allow them to mixin statements? Is it ever likely 
> to be added? Or are there reasons it wasnt allowed?

It's been suggested many times. Some explanation for why it's not 
allowed is in https://issues.dlang.org/show_bug.cgi?id=1734, but 
the motivations for disallowing it aren't really clear there.

Anyways, there is of course a workaround:

mixin template tmp() {
     auto __tmp = (() => i = 3)();
}

unittest {
     int i = 0;
     mixin tmp!();
     assert(i == 3);
}

--
   Simen