maybeWhen<TResult extends Object?> method

  1. @optionalTypeArgs
TResult maybeWhen<TResult extends Object?>({
  1. TResult initial()?,
  2. TResult loading()?,
  3. TResult success(
    1. List<Todo> todos
    )?,
  4. TResult error(
    1. String? message
    )?,
  5. 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()?  initial,TResult Function()?  loading,TResult Function( List<Todo> todos)?  success,TResult Function( String? message)?  error,required TResult orElse(),}) {final _that = this;
switch (_that) {
case _Initial() when initial != null:
return initial();case _Loading() when loading != null:
return loading();case _Success() when success != null:
return success(_that.todos);case _Error() when error != null:
return error(_that.message);case _:
  return orElse();

}
}