fluttering-diamond-1276

readme.md

fluttering-diamond-1276

Created with <3 with dartpad.dev.

main.dart

Future<int> onErrorTrickery() {
  var f = Future<int>.error("original error");
  f.onError ((Object e, StackTrace st) {
    print("onError callback running");
    throw "you cannot catch this error";
  });
  return f;
}

Future<void> secretError( ) async {
  try {
    await onErrorTrickery();
  } catch (e) {
    print("caught original error: $e");
  }
}

void main() async {
  try {
    await secretError();
    print("should run");
  } catch (e) {
    print("will never print, cannot catch error");
  }
  print("should also run");
}