avoid-duplicate-cascades

added in: 1.11.0

warning

🛠

preset: recommended

Warns when a cascade expression has duplicate cascades.

Example

❌ Bad:

void fn() {
  final value = SomeClass();

  value
    ..field = '2' // LINT
    ..field = '1' // LINT
    ..field = '1' // LINT
    ..another = '1';

  value
    ..method(() => 1) // LINT
    ..method(() => 1) // LINT
    ..method(() => 2);

  final list = [1, 2, 3];

  list
    ..[1] = 2 // LINT
    ..[1] = 2 // LINT
    ..[1] = 3 // LINT
    ..[2] = 2;
}

class SomeClass {
  String? field;
  String? another;

  void method(Function callback) {}
}

✅ Good:

void fn() {
  final value = SomeClass();

  value
    ..field = '2'
    ..another = '1';

  value
    ..method(() => 1)
    ..method(() => 2);

  final list = [1, 2, 3];

  list
    ..[1] = 2;
    ..[2] = 3;
}

class SomeClass {
  String? field;
  String? another;

  void method(Function callback) {}
}