[feature request] "Dynamic interface extraction" or "class/interface locking"

Hi,

I am missing a feature to automatically keep one or more interfaces
updated when the class definition changes. This can be useful during
development.

I see this as a directional feature in the sense that one would lock an
interface to a class, and depending on the direction either the
signatures on the interface would be updated when the class definitions
change, or vice versa (for a lock in the opposite direction).

Such a feature would greatly reduce the productivity burden of working
with interfaces.

Yours,
Morten