import kernel
class A
- attr _i: Int
+ var i: Int
init (i: Int) do _i = i
- redef meth output do _i.output
+ redef fun output do _i.output
end
-var a: A
-var na: nullable A
-var o: Object
-var no: nullable Object
+
+
+
+
var a: A = new A(1)
var na: nullable A = new A(2)