Daniel Murphy:
If anyone wants to try this out on their code, the patch I used
was to add this:
if (ad && !ad->isInterfaceDeclaration() && isVirtual() &&
!isFinal() &&
!isOverride() && !(storage_class & STCvirtual) &&
!(ad->storage_class & STCfinal))
{
warning(loc, "virtual required");
}
Around line 623 in func.c (exact line doesn't matter, just
stick it in with the rest of the checks)
I also had to disable the "static member functions cannot be
virtual" error.
In the meantime has someone else measured experimentally the
amount of breakage a "final by default" causes in significant D
programs?
Bye,
bearophile
