On Tuesday, 27 March 2018 at 15:28:40 UTC, jmh530 wrote:
static if (isMutable!T)
bag[0] = rhs;
else
bag = [rhs];
I like this idea. I'd even take it a step futher:
When T is a pointer or class reference, then we can put the
reference on the stack (instead of into the array) and handle
assignments like Rebindable handles assignments -- provided that
Rebindable really is 100 % safe to the outside, see my concerns
from 2 posts above. In this case (static if), we won't even
declare the array T[] bag, and instead implement as T value, bool
isPresent.
When T is a mutable value type, it goes on the stack, too. Again
no array.
When T is a const/immutable/inout value type, we declare the
array as before and rebind on assignment with bag = [rhs], as you
proposed here.
-- Simon
