Codable Bool enum in swift?

Question

I need something like the following:

enum SomeEnum: Bool, Codable {
  case accept = true
  case reject = false
}

struct SomeStruct {
  var someEnum: SomeEnum
}

let s: SomeStruct = ...
print(try! try! JSONEncoder().encode(s)) //{"someEnum": true}

Problem 1: Bool type can't be simply applied to enums. Resolved here: Raw type 'Bool' is not expressible by any literal

Problem 2: Instead of {"someEnum": true} console log shows {"someEnum": {"true": {}} - unresolved. How to fix it correctly? Is it possible to solve by editing SomeEnum code only (because this enum may be used in other places).

Answer 1

So I tried your code with minimal fixes to pass the compilation... and it produces the output you expect. Fixes:

// Fix 1: Follow advice from another SO thread to get Bool enum to conform to RawRepresentable
extension Bool: ExpressibleByIntegerLiteral {
    public init(integerLiteral value: Int) {
        self = value != 0
    }
}

enum SomeEnum: Bool, Codable, RawRepresentable {
  case accept = true
  case reject = false
}

// Fix 2: Mark SomeStruct as Codable
struct SomeStruct: Codable {
  var someEnum: SomeEnum
}

// Fix 3: Make example to be actually executable
let s: SomeStruct = SomeStruct(someEnum: .accept)
let encoded = try JSONEncoder().encode(s)
print(String(data: encoded, encoding: .utf8)!)

And the example prints out:

{"someEnum":true}

(This should be a comment really, as it doesn't solve anything, but won't fit in the comment)