How to create struct of Codable and enum to generic?











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I want to make generic specially "WeekDays.CodingKeys



    struct WeekDays : Codable {

var sunday : String?

// this is coding Keys

enum CodingKeys: String, CodingKey {

case sunday = "sunday"
}


// this is decoder method



    init(from decoder: Decoder) throws {
let values = try decoder.container(keyedBy: CodingKeys.self)
sunday = checkDataValue(values: values, str: .sunday)
}


// this method for convert each and every value string



    mutating func checkDataValue(values: KeyedDecodingContainer<WeekDays.CodingKeys>, str: CodingKeys) -> String {

var strData = String()

do {
strData = (try values.decodeIfPresent(String.self, forKey: str))!
}
catch {
do {
let intStrData = (try values.decodeIfPresent(Int.self, forKey: str))!
strData = "(intStrData)"
}
catch {
do {
let doubleStrData = (try values.decodeIfPresent(Double.self, forKey: str))!
strData = "(doubleStrData)"
}
catch {
strData = ""
}
}
}
return strData
}
}


// I want to make generic specially "WeekDays.CodingKeys"



mutating func checkDataValue(values: KeyedDecodingContainer, str: CodingKeys) -> String










share|improve this question


























    up vote
    -1
    down vote

    favorite












    I want to make generic specially "WeekDays.CodingKeys



        struct WeekDays : Codable {

    var sunday : String?

    // this is coding Keys

    enum CodingKeys: String, CodingKey {

    case sunday = "sunday"
    }


    // this is decoder method



        init(from decoder: Decoder) throws {
    let values = try decoder.container(keyedBy: CodingKeys.self)
    sunday = checkDataValue(values: values, str: .sunday)
    }


    // this method for convert each and every value string



        mutating func checkDataValue(values: KeyedDecodingContainer<WeekDays.CodingKeys>, str: CodingKeys) -> String {

    var strData = String()

    do {
    strData = (try values.decodeIfPresent(String.self, forKey: str))!
    }
    catch {
    do {
    let intStrData = (try values.decodeIfPresent(Int.self, forKey: str))!
    strData = "(intStrData)"
    }
    catch {
    do {
    let doubleStrData = (try values.decodeIfPresent(Double.self, forKey: str))!
    strData = "(doubleStrData)"
    }
    catch {
    strData = ""
    }
    }
    }
    return strData
    }
    }


    // I want to make generic specially "WeekDays.CodingKeys"



    mutating func checkDataValue(values: KeyedDecodingContainer, str: CodingKeys) -> String










    share|improve this question
























      up vote
      -1
      down vote

      favorite









      up vote
      -1
      down vote

      favorite











      I want to make generic specially "WeekDays.CodingKeys



          struct WeekDays : Codable {

      var sunday : String?

      // this is coding Keys

      enum CodingKeys: String, CodingKey {

      case sunday = "sunday"
      }


      // this is decoder method



          init(from decoder: Decoder) throws {
      let values = try decoder.container(keyedBy: CodingKeys.self)
      sunday = checkDataValue(values: values, str: .sunday)
      }


      // this method for convert each and every value string



          mutating func checkDataValue(values: KeyedDecodingContainer<WeekDays.CodingKeys>, str: CodingKeys) -> String {

      var strData = String()

      do {
      strData = (try values.decodeIfPresent(String.self, forKey: str))!
      }
      catch {
      do {
      let intStrData = (try values.decodeIfPresent(Int.self, forKey: str))!
      strData = "(intStrData)"
      }
      catch {
      do {
      let doubleStrData = (try values.decodeIfPresent(Double.self, forKey: str))!
      strData = "(doubleStrData)"
      }
      catch {
      strData = ""
      }
      }
      }
      return strData
      }
      }


      // I want to make generic specially "WeekDays.CodingKeys"



      mutating func checkDataValue(values: KeyedDecodingContainer, str: CodingKeys) -> String










      share|improve this question













      I want to make generic specially "WeekDays.CodingKeys



          struct WeekDays : Codable {

      var sunday : String?

      // this is coding Keys

      enum CodingKeys: String, CodingKey {

      case sunday = "sunday"
      }


      // this is decoder method



          init(from decoder: Decoder) throws {
      let values = try decoder.container(keyedBy: CodingKeys.self)
      sunday = checkDataValue(values: values, str: .sunday)
      }


      // this method for convert each and every value string



          mutating func checkDataValue(values: KeyedDecodingContainer<WeekDays.CodingKeys>, str: CodingKeys) -> String {

      var strData = String()

      do {
      strData = (try values.decodeIfPresent(String.self, forKey: str))!
      }
      catch {
      do {
      let intStrData = (try values.decodeIfPresent(Int.self, forKey: str))!
      strData = "(intStrData)"
      }
      catch {
      do {
      let doubleStrData = (try values.decodeIfPresent(Double.self, forKey: str))!
      strData = "(doubleStrData)"
      }
      catch {
      strData = ""
      }
      }
      }
      return strData
      }
      }


      // I want to make generic specially "WeekDays.CodingKeys"



      mutating func checkDataValue(values: KeyedDecodingContainer, str: CodingKeys) -> String







      ios swift generics codable swift4.2






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      share|improve this question











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      share|improve this question










      asked Nov 19 at 12:11









      Bhavesh Odedara

      197




      197





























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