Question on aim assisted cannons

I have a question on aim assisted cannons for modern aircraft. I believe the Viggen have a autopilot function to slave the plane to the radar to get gun kills similar to the F-15’s Firefly IFFC(cancelled) and this system is on the Gripen as well. This possibly allows for long range frontal shots by measuring trajectory. Does any other fighter have this function? I believe the F-35 has something similar but I am not sure if it’s automated.