maybeWhen<TResult extends Object?> method

@optionalTypeArgs TResult maybeWhen<TResult extends Object?>({ TResult success(String title, String message)?, TResult failure(String title, String message)?, TResult info(String title, String message)?, TResult warning(String title, String message)?, TResult snackBar(String message, bool isError)?, TResult bottomSheet(Widget builder, bool isDismissible)?, required TResult orElse(), })

A variant of when that fallback to an orElse callback.

It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case _:
    return orElse();
}

Implementation

@optionalTypeArgs TResult maybeWhen<TResult extends Object?>({TResult Function( String title,  String message)?  success,TResult Function( String title,  String message)?  failure,TResult Function( String title,  String message)?  info,TResult Function( String title,  String message)?  warning,TResult Function( String message,  bool isError)?  snackBar,TResult Function( Widget builder,  bool isDismissible)?  bottomSheet,required TResult orElse(),}) {final _that = this;
switch (_that) {
case _Success() when success != null:
return success(_that.title,_that.message);case _Failure() when failure != null:
return failure(_that.title,_that.message);case _Info() when info != null:
return info(_that.title,_that.message);case _Warning() when warning != null:
return warning(_that.title,_that.message);case _SnackBar() when snackBar != null:
return snackBar(_that.message,_that.isError);case _BottomSheet() when bottomSheet != null:
return bottomSheet(_that.builder,_that.isDismissible);case _:
  return orElse();

}
}