map<TResult extends Object?> method

  1. @optionalTypeArgs
TResult map<TResult extends Object?>({
  1. required TResult initial(
    1. _Initial value
    ),
  2. required TResult loading(
    1. _Loading value
    ),
  3. required TResult success(
    1. _Success value
    ),
  4. required TResult error(
    1. _Error 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( _Initial value)  initial,required TResult Function( _Loading value)  loading,required TResult Function( _Success value)  success,required TResult Function( _Error value)  error,}){
final _that = this;
switch (_that) {
case _Initial():
return initial(_that);case _Loading():
return loading(_that);case _Success():
return success(_that);case _Error():
return error(_that);case _:
  throw StateError('Unexpected subclass');

}
}