when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>({
  1. required TResult createResult(
    1. CreateResult data
    ),
  2. required TResult updateResult(
    1. UpdateResult data
    ),
  3. required TResult deleteResult(
    1. DeleteResult data
    ),
  4. required TResult unknown(
    1. Map<String, dynamic> data
    ),
})

A switch-like method, using callbacks.

As opposed to map, this offers destructuring. It is equivalent to doing:

switch (sealedClass) {
  case Subclass(:final field):
    return ...;
  case Subclass2(:final field2):
    return ...;
}

Implementation

@optionalTypeArgs TResult when<TResult extends Object?>({required TResult Function( CreateResult data)  createResult,required TResult Function( UpdateResult data)  updateResult,required TResult Function( DeleteResult data)  deleteResult,required TResult Function( Map<String, dynamic> data)  unknown,}) {final _that = this;
switch (_that) {
case URepoApplyWritesResultsCreateResult():
return createResult(_that.data);case URepoApplyWritesResultsUpdateResult():
return updateResult(_that.data);case URepoApplyWritesResultsDeleteResult():
return deleteResult(_that.data);case URepoApplyWritesResultsUnknown():
return unknown(_that.data);}
}