Joined 6 years ago
My guess is yes, since that would probably forbid modifying the instance, since we would now have both the new and old copy. Unless of course we couple type class instances with the definition of the type itself (or the definition of the class) and view the type together with all its instances as a unit (as Unison does with mutually recursive functions), but that would bring on its own set of issues.
You still need to trust that the software is secure.
My guess is yes, since that would probably forbid modifying the instance, since we would now have both the new and old copy. Unless of course we couple type class instances with the definition of the type itself (or the definition of the class) and view the type together with all its instances as a unit (as Unison does with mutually recursive functions), but that would bring on its own set of issues.