handle<T> function
Event Exception Handler
Implementation
T? handle<T>(
T? Function() event, {
T? Function(String msg)? alt,
T? Function(T? condition, bool success)? ult,
}) {
T? _alt(String e) => (alt ?? (e) => null)(e);
T? _ult(T? c, bool s) => (ult ?? (c, s) => c)(c, s);
try {
return _ult(event(), true);
} catch (e) {
try {
return _ult(_alt((e as Exception).msg), false);
} catch (e) {
return _ult(_alt(''), false);
}
}
}