| 1 | | | import 'dart:async'; |
| 2 | | | |
| 3 | | | extension HexExt on int { |
| 4 | | 4 | String get hex => '0x${toRadixString(16).padLeft(8, '0')}'; |
| 5 | | | } |
| 6 | | | |
| 7 | | | extension ControllerSafeExt<T> on StreamController<T> { |
| 8 | | 1 | void safeAdd(T data) { |
| 9 | | 2 | if (!isClosed) add(data); |
| 10 | | | } |
| 11 | | | |
| 12 | | 1 | void safeAddError(Object error, [StackTrace? stackTrace]) { |
| 13 | | 2 | if (!isClosed) addError(error, stackTrace); |
| 14 | | | } |
| 15 | | | } |
| 16 | | | |
| 17 | | | extension CompleterSafeExt<T> on Completer<T> { |
| 18 | | 1 | void safeComplete([FutureOr<T>? value]) { |
| 19 | | 2 | if (!isCompleted) complete(value); |
| 20 | | | } |
| 21 | | | |
| 22 | | 1 | void safeCompleteError(Object error, [StackTrace? stackTrace]) { |
| 23 | | 2 | if (!isCompleted) completeError(error, stackTrace); |
| 24 | | | } |
| 25 | | | } |