import kernel
class O
- redef meth output do 0.output
+ redef fun output do 0.output
end
class A
-special O
+ super O
init do end
end
class U
- redef meth output do 1.output
+ redef fun output do 1.output
end
class B
-special A
-special U
- redef meth output do 2.output
+ super A
+ super U
+ redef fun output do 2.output
init do end
end