best I can do is manually Bar(foo.a, foo.b) right?

# getting-started

[ursus]

best I can do is manually Bar(foo.a, foo.b) right?

[Hullaballoonatic]

fun Foo.copy() = when(this) {
    is Bar -> copy()
    is Quax -> copy()
}

that'd certainly work, since this would be smartcast to the data classes, which themselves have a copy method already.

i'm not sure if there's a less verbose way of accomplishing it, though.

[ursus]

not sure how would this work with params, okay my example doesnt show it, but Foo.copy would need to have merge of all params in the hierarchy

[ursus]

and then youd need to pass all of them,,idk

[epabst]

What I've done is add a method to the base class with the fields I want to override. Then each one can implement it by delegating to its copy method.