swift로 Data 처리 하는 Extension 모음

ble 통신할때 data를 변환할 일이 많아서 정리 해놓음

import Foundation extension NSData {     var uint8: UInt8 {         get {             var number: UInt8 = 0             self.getBytes(&number, length: MemoryLayout<UInt8>.size)             return number         }     } } extension NSData {     var uint16: UInt16 {         get {             var number: UInt16 = 0             self.getBytes(&number, length: MemoryLayout<UInt16>.size )             return number         }     } } extension NSData {     var uint32: UInt32 {         get {             var number: UInt32 = 0             self.getBytes(&number, length:MemoryLayout<UInt32>.size  )             return number         }     } } extension NSData {     var uuid: NSUUID? {         get {             var bytes = [UInt8](repeating: 0, count: self.length)             self.getBytes(&bytes, length: self.length * MemoryLayout<UInt8>.size)             return NSUUID(uuidBytes: bytes)         }     } } extension NSData {     var stringASCII: String? {         get {             return NSString(data: self as Data, encoding: String.Encoding.ascii.rawValue) as String?         }     } } extension NSData {     var stringUTF8: String? {         get {             return NSString(data: self as Data, encoding: String.Encoding.utf8.rawValue) as String?         }     } } extension Int {     var data: NSData {         var int = self         return NSData(bytes: &int, length: MemoryLayout<Int>.size)     } } extension UInt8 {     var data: NSData {         var int = self         return NSData(bytes: &int, length: MemoryLayout<UInt8>.size)     } } extension UInt16 {     var data: NSData {         var int = self         return NSData(bytes: &int, length: MemoryLayout<UInt16>.size)     } } extension UInt32 {     var data: NSData {         var int = self         return NSData(bytes: &int, length: MemoryLayout<UInt32>.size)     } } extension NSUUID {     var data: NSData {         var uuid = [UInt8](repeating: 0, count: 16)         self.getBytes(&uuid)         return NSData(bytes: &uuid, length: 16)     } } extension String {     var dataUTF8: NSData? {         return self.data(using: String.Encoding.utf8) as NSData?     } } extension NSString {     var dataASCII: NSData? {         return self.data(using: String.Encoding.ascii.rawValue) as NSData?     } }