The 777 doesn't really have the "
, I won't let you do that philosophy". It does have protections, but they're more of a subtle "I don't think you ought to do that..." and in any event the pilot can always override them.
In "Normal" flight control mode the Triple will drop lots of hints that you're getting close to the edge of the envelope; couple of examples - it will start to increase the control wheel force to resist roll inputs if the AOB starts to become extreme, and you can't continue trimming back if the airspeed gets too low, but the system won't stop you from grossly over banking, or stalling the aircraft, if that's what you really really insist on doing.