when<TResult extends Object?> method

  1. @optionalTypeArgs
TResult when<TResult extends Object?>({
  1. required TResult embedImages(
    1. EmbedImages data
    ),
  2. required TResult embedVideo(
    1. EmbedVideo data
    ),
  3. required TResult embedExternal(
    1. EmbedExternal 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( EmbedImages data)  embedImages,required TResult Function( EmbedVideo data)  embedVideo,required TResult Function( EmbedExternal data)  embedExternal,required TResult Function( Map<String, dynamic> data)  unknown,}) {final _that = this;
switch (_that) {
case UEmbedRecordWithMediaMediaEmbedImages():
return embedImages(_that.data);case UEmbedRecordWithMediaMediaEmbedVideo():
return embedVideo(_that.data);case UEmbedRecordWithMediaMediaEmbedExternal():
return embedExternal(_that.data);case UEmbedRecordWithMediaMediaUnknown():
return unknown(_that.data);}
}