Created
April 10, 2019 10:35
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RawHashableConvertible
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| import UIKit | |
| protocol RawHashableConvertible: RawRepresentable, Hashable, CustomStringConvertible, CustomDebugStringConvertible, CustomReflectable { } | |
| extension RawHashableConvertible where RawValue == String { | |
| var description: String { | |
| return rawValue | |
| } | |
| var debugDescription: String { | |
| return description | |
| } | |
| var hashValue: Int { | |
| return rawValue.hashValue | |
| } | |
| func hash(into hasher: inout Hasher) { | |
| self.rawValue.hash(into: &hasher) | |
| } | |
| var customMirror: Mirror { | |
| return rawValue.customMirror | |
| } | |
| } | |
| protocol CustomSerialization { | |
| associatedtype ObjectType | |
| func process(_ object: ObjectType) throws -> Data | |
| } | |
| struct AnyHashableSerialization<C>: CustomSerialization where C: RawHashableConvertible { | |
| func process(_ any: [C: Any]) throws -> Data { | |
| let new = any.reduce([String: Any](), { (result, dict) -> [String: Any] in | |
| var mutable = result | |
| mutable[dict.key.description] = dict.value | |
| return mutable | |
| }) | |
| return try JSONSerialization.data(withJSONObject: new, options: []) | |
| } | |
| } | |
| struct Keys: RawHashableConvertible { | |
| var rawValue: String | |
| init(rawValue: String) { | |
| self.rawValue = rawValue | |
| } | |
| } | |
| extension Keys { | |
| static var none: Keys { return .init(rawValue: "none") } | |
| static var some: Keys { return .init(rawValue: "some") } | |
| static var value: Keys { return .init(rawValue: "value") } | |
| } | |
| let dict: [Keys: String] = [.none: "Value1", | |
| .some: "Value2", | |
| .value: "Value3"] | |
| do { | |
| let data = try AnyHashableSerialization().process(dict) | |
| print(data) | |
| let string = String(data: data, encoding: .utf8) | |
| print(string as Any) | |
| } catch { | |
| print(error) | |
| } |
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