Created
July 14, 2020 11:08
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| void main() { | |
| dynamic r1 = CustomErrorHandler<dynamic>().execute( | |
| mightThrow: () => []..elementAt(2), | |
| onError: (e) => print("Found Error: <$e>"), | |
| shouldRethrow: false, | |
| ); | |
| print(r1); | |
| dynamic r2 = CustomErrorHandler<int>().execute( | |
| mightThrow: () => 1 ~/ 0, | |
| onError: (e) => print("Found Error: <$e>"), | |
| shouldRethrow: false, | |
| ); | |
| print(r2); | |
| } | |
| class CustomErrorHandler<T> { | |
| T execute({ | |
| T Function() mightThrow, | |
| void Function(dynamic e) onError, | |
| bool shouldRethrow=true, | |
| }) { | |
| try { | |
| return mightThrow(); | |
| } catch (e) { | |
| onError(e); | |
| if (shouldRethrow) { | |
| throw e; | |
| } | |
| return null; | |
| } | |
| } | |
| } |
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