Initialization of base class variable

[ghost]

type
    T* = ref object of RootObj
        x: range[1 .. 1]
    U* = ref object of T

var u = U()

This code generates this error message:

bug.nim(6, 10) Error: field not initialized: x

It's not an issue in this case because the field can be initialized in the constructor, but the base class might be defined in another module and the field might not be exported.

[ringabout]

When you change the low part of the range to zero, it works

type
    T* = ref object of RootObj
        x: range[0 .. 1]
    U* = ref object of T

var u = U()

[bung87]

doesn't this should close? it's invalid code to me.

[ringabout]

fixed by #20480