add-copy-with
Warns when a class that matches the config does not declare a copyWith
method.
note
This rule requires configuration in order to highlight any issues.
⚙️ Config
Set class-name-pattern
(default is none) to configure the list of class names that need to declare a copyWith
method.
Set file-name-pattern
(default is none) to configure the list of file names with classes that need to declare a copyWith
method.
dart_code_metrics:
...
rules:
...
- add-copy-with:
class-name-pattern: State$
file-name-pattern: '.model.dart'
Example
❌ Bad:
// LINT
class SomeState {
final String value;
const SomeState({required this.value});
}
✅ Good:
class SomeState {
final String value;
const SomeState({required this.value});
SomeState copyWith({String value}) => SomeState(value: value ?? this.value);
}