CalculatorOnSpecialButton constructor Null safety

CalculatorOnSpecialButton(
  1. ButtonFactory factory,
  2. String uText,
  3. String fText,
  4. String gText,
  5. Operation uKey,
  6. Operation fKey,
  7. Operation gKey,
  8. String rawKeyboardKey,
  9. String specialText,
  10. {String? acceleratorLabel,
  11. Key? key}
)

Implementation

CalculatorOnSpecialButton(
    ButtonFactory factory,
    String uText,
    String fText,
    String gText,
    Operation uKey,
    Operation fKey,
    Operation gKey,
    String rawKeyboardKey,
    this.specialText,
    {String? acceleratorLabel,
    Key? key})
    : super(factory, uText, fText, gText, uKey, fKey, gKey, rawKeyboardKey,
          acceleratorLabel: acceleratorLabel, key: key);