avoid-unused-generics

added in: 1.4.0

warning

🛠

preset: recommended

Warns when a function or method declares unused generic types.

Example

❌ Bad:

class SomeClass {
  // LINT
  String unused<T extends num>() {
    // ...
  }

  // LINT
  String multiple<T, U>(U param) {
    // ...
  }
}

// LINT
void function<T>() {
  return;
}

✅ Good:

class SomeClass {
  String used<T extends num>() {
    return (value as T).toString();
  }

  T multiple<T, U>(U param) {
    // ...
  }
}

void function() {
  return;
}