maybeWhen<TResult extends Object?> method

  1. @optionalTypeArgs
TResult maybeWhen<TResult extends Object?>({
  1. TResult embedImagesView(
    1. EmbedImagesView data
    )?,
  2. TResult embedVideoView(
    1. EmbedVideoView data
    )?,
  3. TResult embedExternalView(
    1. EmbedExternalView data
    )?,
  4. TResult unknown(
    1. Map<String, dynamic> data
    )?,
  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( EmbedImagesView data)?  embedImagesView,TResult Function( EmbedVideoView data)?  embedVideoView,TResult Function( EmbedExternalView data)?  embedExternalView,TResult Function( Map<String, dynamic> data)?  unknown,required TResult orElse(),}) {final _that = this;
switch (_that) {
case UEmbedRecordWithMediaViewMediaEmbedImagesView() when embedImagesView != null:
return embedImagesView(_that.data);case UEmbedRecordWithMediaViewMediaEmbedVideoView() when embedVideoView != null:
return embedVideoView(_that.data);case UEmbedRecordWithMediaViewMediaEmbedExternalView() when embedExternalView != null:
return embedExternalView(_that.data);case UEmbedRecordWithMediaViewMediaUnknown() when unknown != null:
return unknown(_that.data);case _:
  return orElse();

}
}