int err = 0;
              if ( condition1 ) {
                if ( condition2 ) {
                  if ( condition3 ) {
                    if ( condition4 ) {
                      switch ( type ) {
                        case Public: {
                          (new DoSomething())->start();
                          break;
                        }
                        default: {
              (new DoSomething2())->start();
                          break;
                        }
                      }
                    }
                    else {
                      err = PermissionDenied;
                    }
                  }
                  else {
                    err = NotAMember;
                  }
                }
                else {
                  err = PermissionDenied;
                }
              }
              else {
                err = NotAMember;
              }
              if ( err ) {
        SendErrorMessage(err);
              }