goto.swift

var headphonesAreActive = false
loop: for currentOutput in audioSession.currentRoute.outputs {
    switch currentOutput.portType {
    case .headphones, .bluetoothA2DP, .bluetoothHFP:
        headphonesAreActive = true
        hasHeadphones = true
        hasBluetoothHeadphones = [.bluetoothA2DP, .bluetoothHFP].contains(currentOutput.portType)
        activeOutput = .headphones
        break loop
    default:
        break
    }
}

вот туточки break loop