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avoid-accessing-other-classes-private-members

added in: 1.7.0
warning
Pro+

Warns when a private member of another class is used.

While Dart allows accessing private members of other classes in the same library, accessing them still violates encapsulation. Consider marking these members public or reorganizing the code.

Example​

❌ Bad:

class SomeClass {
  final String _value;

  const SomeClass(this._value);
}

class OtherClass {
  void work(SomeClass other) {
    other._value; // LINT: Avoid accessing private members of other classes. Try making this member public.
  }
}

✅ Good:

class SomeClass {
  final String value;

  const SomeClass(this.value);
}

class OtherClass {
  void work(SomeClass other) {
    other.value; // Correct, public field
  }
}

Additional Resources​