Extract data from processor .data and pass to .image about kingfisher HOT 2 CLOSED

struct MetaDataProcessor: ImageProcessor {
    let metaData: MetaData // can be an int, or anything else you can customize.
    var identifier: String {  /* It is better to return a value can be identified by the metaData.  */  }

    func process(item: ImageProcessItem, options: KingfisherParsedOptionsInfo) -> KFCrossPlatformImage? {
        switch item {
        case .image(let image):
            // You now have the correct metaData here.
            return image
        case .data:
            // You can even leave empty, this case won't be called.
            return UIImage()
        }
    }
}

struct CustomProcessor: ImageProcessor {
   
    let identifier: String

    func process(item: ImageProcessItem, options: KingfisherParsedOptionsInfo) -> KFCrossPlatformImage? {
        switch item {
        case .image(let image):
            return image
        case .data:
           let src = CGImageSourceCreateWithData(data as CFData, nil)
           let metadata = CGImageSourceCopyMetadataAtIndex(src!, 0, nil)
           let next = MetaDataProcessor(metaData: metadata)
           return (DefaultImageProcessor.default |> next).process(item: item, options: options)
        }
    }
}