map<TResult extends Object?> method

  1. @optionalTypeArgs
TResult map<TResult extends Object?>({
  1. required TResult data(
    1. ListDataPickerData<T> value
    ),
  2. required TResult error(
    1. ListDataPickerError<T> value
    ),
})

A switch-like method, using callbacks.

Callbacks receives the raw object, upcasted. It is equivalent to doing:

switch (sealedClass) {
  case final Subclass value:
    return ...;
  case final Subclass2 value:
    return ...;
}

Implementation

@optionalTypeArgs TResult map<TResult extends Object?>({required TResult Function( ListDataPickerData<T> value)  data,required TResult Function( ListDataPickerError<T> value)  error,}){
final _that = this;
switch (_that) {
case ListDataPickerData():
return data(_that);case ListDataPickerError():
return error(_that);}
}