abstract class override fields

[hadukin]

I think these 2 errors contradict each other

lint: ^1.6.0

abstract class IContent {
  final String? name;
  IContent({
    this.name,
  });
}

class Content extends IContent {
  // 2 conflicting errors
  // Annotate overridden members.dart(annotate_overrides)
  // Don't override fields.dart(overridden_fields)
  final String? name;
}

[minhqdao]

The errors seem to contradict, but in fact they don't. 😉

The first one states that anything carrying the same name as a counterpart in its super class should be annotated with @override. That is typically the case if you define a static method in an abstract class that another class implements/extends. You could also do that here to resolve the first error. But then there is the second error stating that, no matter if @override is added or not, you shouldn't do it in the first place because fields aren't meant to be overridden.

See, if IContent had a field called name and Content had firstName, you could access both through:

final content = Content();
final name = content.name;
final firstName = content.firstName;

because Content extends IContent with its inherited name field. If you override a field with another, you loose that functionality, which, however, is the entire purpose of extending it. It is therefore bad practice to do so. 😔

If you really want to enforce the override, you can achieve that with an // ignore ..., but maybe you want to reevaluate whether you want to do that in the first place. 🤔