Protocol extension to struct and overwritable
1
I want to be able to decode different objects that come from the server with different date formats and for that I came up with this protocol:
public protocol DateFormatProtocol{
var dateFormat : String {get}
}
public protocol CodableWithDateFormat : Codable, DateFormatProtocol{
static var dateFormat: String {get}// = "DatFormat"
}
public extension CodableWithDateFormat{
public static var dateFormat: String { return "Base date format" }
}
So when I need to I could override the property in each struct that needs a different date format but I don't want eavery struct to override the default date format given on the extension of the protocol. Is there any way for me being able to write this? :
struct Struct1 : CodableWithDateFormat{
var dateFormat: String { return "Overwritten Date Format" }
let prop1 : String
let prop2 : Int
}
struct Struct2 : CodableWithDateFormat{ //Type 'Struct2' does not conform to protocol 'DateFormatProtocol'
let prop1 : String
let prop2 : Int
}
swift properties static override protocols
asked Nov 22 at 21:21
Matías Contreras Selman
15518
add a comment |
1
I want to be able to decode different objects that come from the server with different date formats and for that I came up with this protocol:
public protocol DateFormatProtocol{
var dateFormat : String {get}
}
public protocol CodableWithDateFormat : Codable, DateFormatProtocol{
static var dateFormat: String {get}// = "DatFormat"
}
public extension CodableWithDateFormat{
public static var dateFormat: String { return "Base date format" }
}
So when I need to I could override the property in each struct that needs a different date format but I don't want eavery struct to override the default date format given on the extension of the protocol. Is there any way for me being able to write this? :
struct Struct1 : CodableWithDateFormat{
var dateFormat: String { return "Overwritten Date Format" }
let prop1 : String
let prop2 : Int
}
struct Struct2 : CodableWithDateFormat{ //Type 'Struct2' does not conform to protocol 'DateFormatProtocol'
let prop1 : String
let prop2 : Int
}
swift properties static override protocols
asked Nov 22 at 21:21
Matías Contreras Selman
15518
You forget to includeDateFormatProtocoldeclaration that could help the readers to provide a better fix..
– Kamran
Nov 22 at 22:07
You're right, I edited the question
– Matías Contreras Selman
Nov 26 at 12:46
Please check the updated answer.
– Kamran
Nov 26 at 12:50
Is there a way that, when implementing the Protocol CodableWithDateFormat the compiler will force the struct to have dateFormat property?
– Matías Contreras Selman
Nov 26 at 14:15
Actually if you remove the default implementation from extension it will force then. Or if you use DateFormateProtocol then it is possible.
– Kamran
Nov 26 at 15:23
add a comment |
1
1
1
I want to be able to decode different objects that come from the server with different date formats and for that I came up with this protocol:
public protocol DateFormatProtocol{
var dateFormat : String {get}
}
public protocol CodableWithDateFormat : Codable, DateFormatProtocol{
static var dateFormat: String {get}// = "DatFormat"
}
public extension CodableWithDateFormat{
public static var dateFormat: String { return "Base date format" }
}
So when I need to I could override the property in each struct that needs a different date format but I don't want eavery struct to override the default date format given on the extension of the protocol. Is there any way for me being able to write this? :
struct Struct1 : CodableWithDateFormat{
var dateFormat: String { return "Overwritten Date Format" }
let prop1 : String
let prop2 : Int
}
struct Struct2 : CodableWithDateFormat{ //Type 'Struct2' does not conform to protocol 'DateFormatProtocol'
let prop1 : String
let prop2 : Int
}
swift properties static override protocols
asked Nov 22 at 21:21
Matías Contreras Selman
15518
I want to be able to decode different objects that come from the server with different date formats and for that I came up with this protocol:
public protocol DateFormatProtocol{
var dateFormat : String {get}
}
public protocol CodableWithDateFormat : Codable, DateFormatProtocol{
static var dateFormat: String {get}// = "DatFormat"
}
public extension CodableWithDateFormat{
public static var dateFormat: String { return "Base date format" }
}
So when I need to I could override the property in each struct that needs a different date format but I don't want eavery struct to override the default date format given on the extension of the protocol. Is there any way for me being able to write this? :
struct Struct1 : CodableWithDateFormat{
var dateFormat: String { return "Overwritten Date Format" }
let prop1 : String
let prop2 : Int
}
struct Struct2 : CodableWithDateFormat{ //Type 'Struct2' does not conform to protocol 'DateFormatProtocol'
let prop1 : String
let prop2 : Int
}
swift properties static override protocols
swift properties static override protocols
asked Nov 22 at 21:21
Matías Contreras Selman
15518
asked Nov 22 at 21:21
Matías Contreras Selman
15518
edited Nov 26 at 12:45
asked Nov 22 at 21:21
Matías Contreras Selman
15518
asked Nov 22 at 21:21
Matías Contreras Selman
15518
asked Nov 22 at 21:21
Matías Contreras Selman
15518
15518
You forget to includeDateFormatProtocoldeclaration that could help the readers to provide a better fix..
– Kamran
Nov 22 at 22:07
You're right, I edited the question
– Matías Contreras Selman
Nov 26 at 12:46
Please check the updated answer.
– Kamran
Nov 26 at 12:50
Is there a way that, when implementing the Protocol CodableWithDateFormat the compiler will force the struct to have dateFormat property?
– Matías Contreras Selman
Nov 26 at 14:15
Actually if you remove the default implementation from extension it will force then. Or if you use DateFormateProtocol then it is possible.
– Kamran
Nov 26 at 15:23
add a comment |
You forget to includeDateFormatProtocoldeclaration that could help the readers to provide a better fix..
– Kamran
Nov 22 at 22:07
You're right, I edited the question
– Matías Contreras Selman
Nov 26 at 12:46
Please check the updated answer.
– Kamran
Nov 26 at 12:50
Is there a way that, when implementing the Protocol CodableWithDateFormat the compiler will force the struct to have dateFormat property?
– Matías Contreras Selman
Nov 26 at 14:15
Actually if you remove the default implementation from extension it will force then. Or if you use DateFormateProtocol then it is possible.
– Kamran
Nov 26 at 15:23
You forget to include
DateFormatProtocol declaration that could help the readers to provide a better fix..– Kamran
Nov 22 at 22:07
You forget to include
DateFormatProtocol declaration that could help the readers to provide a better fix..– Kamran
Nov 22 at 22:07
You're right, I edited the question
– Matías Contreras Selman
Nov 26 at 12:46
You're right, I edited the question
– Matías Contreras Selman
Nov 26 at 12:46
Please check the updated answer.
– Kamran
Nov 26 at 12:50
Please check the updated answer.
– Kamran
Nov 26 at 12:50
Is there a way that, when implementing the Protocol CodableWithDateFormat the compiler will force the struct to have dateFormat property?
– Matías Contreras Selman
Nov 26 at 14:15
Is there a way that, when implementing the Protocol CodableWithDateFormat the compiler will force the struct to have dateFormat property?
– Matías Contreras Selman
Nov 26 at 14:15
Actually if you remove the default implementation from extension it will force then. Or if you use DateFormateProtocol then it is possible.
– Kamran
Nov 26 at 15:23
Actually if you remove the default implementation from extension it will force then. Or if you use DateFormateProtocol then it is possible.
– Kamran
Nov 26 at 15:23
add a comment |
1 Answer
1
active
oldest
votes
1
You need to match the declaration for dateFormat in DateFormatProtocol as below,
public protocol DateFormatProtocol {
static var dateFormat: String { get }
}
public protocol CodableWithDateFormat: Codable, DateFormatProtocol {}
public extension CodableWithDateFormat {
public static var dateFormat: String { return "Base date format" }
}
struct Struct1: CodableWithDateFormat {
public static var dateFormat: String { return "Overwritten Date Format" }
let prop1: String
let prop2: Int
}
struct Struct2: CodableWithDateFormat {
let prop1: String
let prop2: Int
}
answered Nov 22 at 22:13
Kamran
6,19711028
Man this really helped me. Thanks
– Matías Contreras Selman
Nov 26 at 13:52
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
You need to match the declaration for dateFormat in DateFormatProtocol as below,
public protocol DateFormatProtocol {
static var dateFormat: String { get }
}
public protocol CodableWithDateFormat: Codable, DateFormatProtocol {}
public extension CodableWithDateFormat {
public static var dateFormat: String { return "Base date format" }
}
struct Struct1: CodableWithDateFormat {
public static var dateFormat: String { return "Overwritten Date Format" }
let prop1: String
let prop2: Int
}
struct Struct2: CodableWithDateFormat {
let prop1: String
let prop2: Int
}
answered Nov 22 at 22:13
Kamran
6,19711028
Man this really helped me. Thanks
– Matías Contreras Selman
Nov 26 at 13:52
add a comment |
1
You need to match the declaration for dateFormat in DateFormatProtocol as below,
public protocol DateFormatProtocol {
static var dateFormat: String { get }
}
public protocol CodableWithDateFormat: Codable, DateFormatProtocol {}
public extension CodableWithDateFormat {
public static var dateFormat: String { return "Base date format" }
}
struct Struct1: CodableWithDateFormat {
public static var dateFormat: String { return "Overwritten Date Format" }
let prop1: String
let prop2: Int
}
struct Struct2: CodableWithDateFormat {
let prop1: String
let prop2: Int
}
answered Nov 22 at 22:13
Kamran
6,19711028
Man this really helped me. Thanks
– Matías Contreras Selman
Nov 26 at 13:52
add a comment |
1
1
1
You need to match the declaration for dateFormat in DateFormatProtocol as below,
public protocol DateFormatProtocol {
static var dateFormat: String { get }
}
public protocol CodableWithDateFormat: Codable, DateFormatProtocol {}
public extension CodableWithDateFormat {
public static var dateFormat: String { return "Base date format" }
}
struct Struct1: CodableWithDateFormat {
public static var dateFormat: String { return "Overwritten Date Format" }
let prop1: String
let prop2: Int
}
struct Struct2: CodableWithDateFormat {
let prop1: String
let prop2: Int
}
answered Nov 22 at 22:13
Kamran
6,19711028
You need to match the declaration for dateFormat in DateFormatProtocol as below,
public protocol DateFormatProtocol {
static var dateFormat: String { get }
}
public protocol CodableWithDateFormat: Codable, DateFormatProtocol {}
public extension CodableWithDateFormat {
public static var dateFormat: String { return "Base date format" }
}
struct Struct1: CodableWithDateFormat {
public static var dateFormat: String { return "Overwritten Date Format" }
let prop1: String
let prop2: Int
}
struct Struct2: CodableWithDateFormat {
let prop1: String
let prop2: Int
}
answered Nov 22 at 22:13
Kamran
6,19711028
edited Nov 26 at 12:56
answered Nov 22 at 22:13
Kamran
6,19711028
answered Nov 22 at 22:13
Kamran
6,19711028
answered Nov 22 at 22:13
Kamran
6,19711028
6,19711028
Man this really helped me. Thanks
– Matías Contreras Selman
Nov 26 at 13:52
add a comment |
Man this really helped me. Thanks
– Matías Contreras Selman
Nov 26 at 13:52
Man this really helped me. Thanks
– Matías Contreras Selman
Nov 26 at 13:52
Man this really helped me. Thanks
– Matías Contreras Selman
Nov 26 at 13:52
add a comment |
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You forget to include
DateFormatProtocoldeclaration that could help the readers to provide a better fix..– Kamran
Nov 22 at 22:07
You're right, I edited the question
– Matías Contreras Selman
Nov 26 at 12:46
Please check the updated answer.
– Kamran
Nov 26 at 12:50
Is there a way that, when implementing the Protocol CodableWithDateFormat the compiler will force the struct to have dateFormat property?
– Matías Contreras Selman
Nov 26 at 14:15
Actually if you remove the default implementation from extension it will force then. Or if you use DateFormateProtocol then it is possible.
– Kamran
Nov 26 at 15:23