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Pods/HandyJSON/Source/PointerType.swift 1.07 KB
75d24c15   yangbin   123
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  /*
   * Copyright 1999-2101 Alibaba Group.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  //
  //  Created by zhouzhuo on 07/01/2017.
  //
  
  protocol PointerType : Equatable {
      associatedtype Pointee
      var pointer: UnsafePointer<Pointee> { get set }
  }
  
  extension PointerType {
      init<T>(pointer: UnsafePointer<T>) {
          func cast<T, U>(_ value: T) -> U {
              return unsafeBitCast(value, to: U.self)
          }
          self = cast(UnsafePointer<Pointee>(pointer))
      }
  }
  
  func == <T: PointerType>(lhs: T, rhs: T) -> Bool {
      return lhs.pointer == rhs.pointer
  }