UILabel extension that sets text prepended by a SF Symbols image

SetTextPrependedBySFSymbols.swift

extension UILabel {
    func setText(_ text: String, prependedBySymbolNameed symbolSystemName: String, font: UIFont? = nil) {
        if #available(iOS 13.0, *) {
            if let font = font { self.font = font }
            let symbolConfiguration = UIImage.SymbolConfiguration(font: self.font)
            let symbolImage = UIImage(systemName: symbolSystemName, withConfiguration: symbolConfiguration)?.withRenderingMode(.alwaysTemplate)
            let symbolTextAttachment = NSTextAttachment()
            symbolTextAttachment.image = symbolImage
            let attributedText = NSMutableAttributedString()
            attributedText.append(NSAttributedString(attachment: symbolTextAttachment))
            attributedText.append(NSAttributedString(string: " " + text))
            self.attributedText = attributedText
        } else {
            self.text = text // fallback
        }
    }
}

// Usage:
// label.setText("Share", prependedBySymbolNameed: "square.and.arrow.up") // label is an instance of UILabel
// label.sizeToFit() // As needed

// Notes:
// When testing in a Swift Playground, place the extension code in a separate source file to avoid Xcode crash for an unknown reason (as of Xcode 11.4.1)
// Worked fine in a general application project.