ReflectionHelper.swift 1.3 KB

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  1. /*
  2. * Copyright 1999-2101 Alibaba Group.
  3. *
  4. * Licensed under the Apache License, Version 2.0 (the "License");
  5. * you may not use this file except in compliance with the License.
  6. * You may obtain a copy of the License at
  7. *
  8. * http://www.apache.org/licenses/LICENSE-2.0
  9. *
  10. * Unless required by applicable law or agreed to in writing, software
  11. * distributed under the License is distributed on an "AS IS" BASIS,
  12. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13. * See the License for the specific language governing permissions and
  14. * limitations under the License.
  15. */
  16. //
  17. // Helper.swift
  18. // HandyJSON
  19. //
  20. // Created by zhouzhuo on 07/01/2017.
  21. //
  22. struct ReflectionHelper {
  23. static func mutableStorage<T>(instance: inout T) -> UnsafeMutableRawPointer {
  24. return UnsafeMutableRawPointer(mutating: storage(instance: &instance))
  25. }
  26. static func storage<T>(instance: inout T) -> UnsafeRawPointer {
  27. if type(of: instance) is AnyClass {
  28. let opaquePointer = Unmanaged.passUnretained(instance as AnyObject).toOpaque()
  29. return UnsafeRawPointer(opaquePointer)
  30. } else {
  31. return withUnsafePointer(to: &instance) { pointer in
  32. return UnsafeRawPointer(pointer)
  33. }
  34. }
  35. }
  36. }