So, here are your revised version:
https://github.com/phobos-x/phobosx/blob/1f0016c84c2043da0b9d2dafe65f54fcf6b6b8fa/source/phobosx/signal.d
Sorry, but you are making the same mistake again.
Yeah, I made a mistake again. In my mind it was ok because "o" is
read from a shared variable, but this is not true, as it is read
from a temporary, which does not hold a visible address.
It is getting embarrassing, but I really appreciate your help in
making it a rock solid solution. Thank you! I hope my next try is
working out better, I have to sleep over it and re-examine it,
but maybe you want to have a look, you are usually faster and
more reliable in finding flaws than myself ;-) :
https://github.com/phobos-x/phobosx/blob/master/source/phobosx/signal.d
The relevant code is now in InvisibleRef.address and
InvisibleRef.makeVisible/makeInvisible.
Best regards,
Robert
