avoid-unassigned-fields

v1.33.0

warning

effort: 4m

teams+

Warns when a private field is not assigned a value.

Example

❌ Bad:

class Test {
  final _field = 'string';

  // LINT: This field is never assigned a value within its declaration.
  //  Try assigning a value or removing this field.
  int? _privateLate;
}

✅ Good:

class Test {
  final field = 'string';

  int? _anotherField; // Correct, assigned

  final String regular; // Correct, not late

  Test(this.regular) : _anotherField = 1;
}

Additional Resources

• CWE-457: Use of Uninitialized Variable

Related Rules

• avoid-unnecessary-nullable-fields
• avoid-unassigned-late-fields