avoid-non-empty-constructor-bodies

added in: 1.23.0

style

Pro+

Suggests moving all initialization logic to a separate method instead of the constructor.

Use this rule if you have specific classes that require the initialization rule to be moved out to a separate initialization method.

note

For this rule to work only for specific classes, use the include config.

Example

❌ Bad:

class SomeClass {
  final String value;

  // LINT: Avoid non-empty constructor bodies. Try moving all initialization logic to a separate method.
  SomeClass(this.value) {
    log(this.value);
  }
}

✅ Good:

class SomeClass {
  final String value;

  const SomeClass(this.value);

  void init() {
    log(this.value);
  }
}