prefer-correct-callback-field-name

added in: 1.11.0

style

⚙️

preset: recommended

Warns when a field with a Function type does not matched the configured name or a field with a non-Function type matches the configured name.

note

This rule does not take _ into account when checking the name.

⚙️ Config

Set name-pattern (default is ^on[A-Z]+) to set the expected field name.

dart_code_metrics:
  ...
  rules:
    ...
    - prefer-correct-callback-field-name:
        name-pattern: ^on[A-Z]+

Example

❌ Bad:

class SomeWidget {
  final String onSome; // LINT

  final Function doWork; // LINT

  const SomeWidget(this.onSome, this.doWork);
}

✅ Good:

class SomeWidget {
  final String value;

  final Function onTap;

  const SomeWidget(this.value, this.onTap);
}