maybeWhen<TResult extends Object?> method

@optionalTypeArgs TResult maybeWhen<TResult extends Object?>({ TResult network(String url, ImageParams params)?, TResult base64(String url, ImageParams params)?, TResult filePath(String url, ImageParams params)?, TResult asset(String url, ImageParams params)?, 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( String url,  ImageParams params)?  network,TResult Function( String base64Code,  ImageParams params)?  base64,TResult Function( String filePath,  ImageParams params)?  filePath,TResult Function( String assetPath,  ImageParams params)?  asset,required TResult orElse(),}) {final _that = this;
switch (_that) {
case MyNetworkImage() when network != null:
return network(_that.url,_that.params);case MyBase64Image() when base64 != null:
return base64(_that.base64Code,_that.params);case MyFilePathImage() when filePath != null:
return filePath(_that.filePath,_that.params);case MyAssetImage() when asset != null:
return asset(_that.assetPath,_that.params);case _:
  return orElse();

}
}