41 lines
1.2 KiB
Swift
41 lines
1.2 KiB
Swift
//
|
|
// RawRepresentableCodable.swift
|
|
// MVMCoreUI
|
|
//
|
|
// Created by Scott Pfeil on 9/14/23.
|
|
// Copyright © 2023 Verizon Wireless. All rights reserved.
|
|
//
|
|
|
|
import Foundation
|
|
|
|
public protocol RawRepresentableCodable: RawRepresentable, Codable where RawValue: Hashable & Decodable {
|
|
static var mapping: [RawValue: Self] { get }
|
|
static var defaultValue: Self? { get }
|
|
}
|
|
|
|
public enum RawRepresentableCodableError: Swift.Error {
|
|
case invalid(value: String)
|
|
}
|
|
|
|
extension RawRepresentableCodable {
|
|
|
|
public init(from decoder: Decoder) throws {
|
|
let container = try decoder.singleValueContainer()
|
|
let rawValue = try container.decode(RawValue.self)
|
|
if let found = Self(rawValue: rawValue) {
|
|
self = found
|
|
} else if let found = Self.mapping[rawValue] {
|
|
self = found
|
|
} else if let defaultValue = Self.defaultValue {
|
|
self = defaultValue
|
|
} else {
|
|
throw RawRepresentableCodableError.invalid(value: "\(rawValue)")
|
|
}
|
|
}
|
|
|
|
public func encode(to encoder: Encoder) throws {
|
|
var container = encoder.singleValueContainer()
|
|
try container.encode(self)
|
|
}
|
|
}
|