协议类型“Any”的值不能符合“Equatable”； 只有结构/枚举/类类型可以符合协议

Question

Value is type "ANY" as it can be Int or String. So not able to implement Equatable protocol. following are the code snipped.

struct BusinessDetail:Equatable {
    static func == (lhs: BusinessDetail, rhs: BusinessDetail) -> Bool {
        lhs.cellType == rhs.cellType && lhs.value == rhs.value
    }

    let cellType: BusinessDetailCellType
    var value: Any?
}

enum BusinessDetailCellType:Int {
case x
case y
var textVlaue:String {
   Switch self {
     case x:
        return "x"
     case y:
        return "y"
   }
}
}

Answer 1

Use Generics instead of Any...

struct BusinessDetail<T>  {

  let cellType: BusinessDetailCellType
  var value: T?
}

extension BusinessDetail: Equatable {
  static func ==<T> (lhs: BusinessDetail<T>, rhs: BusinessDetail<T>) -> Bool {
    lhs.cellType == rhs.cellType
  }
  static func == <T1:Equatable>(lhs: BusinessDetail<T1>, rhs: BusinessDetail<T1>) -> Bool {
    lhs.cellType == rhs.cellType && lhs.value == rhs.value
  }

}

enum BusinessDetailCellType:Int {
  case x
  case y

  var textVlaue:String {
    switch self {
    case .x:
      return "x"
    case .y:
      return "y"
    }

  }
}

Answer 2

I had a similar issue, where using [AnyHashable] instead of [Any] type was the solution!