如何在可解码结构中消除: let id = UUID()是不可变的错误

Question

有没有办法修复这个错误：

Immutable property will not be decoded because it is declared with an initial value which cannot be overwritten

这个错误显示在let id = UUID()旁边，我知道它为什么在那里，但是将id设置为var不起作用，因为JSONDecoder不能解码该结构。程序运行良好，但错误非常恼人，因为有15个错误。我对swift有些陌生，所以如果这段代码中有任何错误，请随时批评它们。

import Foundation

struct Ability: Codable, Identifiable{
    let id = UUID()
    let name: String
    let url: String
}
struct Abilities: Codable, Identifiable {
    let id = UUID()
    let ability: Ability
    let is_hidden: Bool
    let slot: Int
}
struct Forms: Codable, Identifiable {
    let id = UUID()
    let name: String
    let url: String
}
struct Species: Codable, Identifiable {
    let id = UUID()
    let name: String
    let url: String
}
struct OfficialArtwork: Codable, Identifiable {
    let id = UUID()
    let front_default: String?
}
struct Other: Codable {
    //let dream_world: DreamWorld
    let art: OfficialArtwork
    enum CodingKeys: String, CodingKey {
     
        case art = "official-artwork"
    }
}
struct Sprites: Codable, Identifiable {
    let id = UUID()
    let other: Other
}
struct Type: Codable, Identifiable {
    let id = UUID()
    let name: String
    let url: String
}
struct Types: Codable, Identifiable {
    let id = UUID()
    let type: Type
}
struct Stat: Codable, Identifiable {
    let id = UUID()
    let name: String
    let url: String
}
struct Stats: Codable, Identifiable {
    let id = UUID()
    let base_stat: Int
    let stat: Stat
    
}
struct Move: Codable, Identifiable {
    let id = UUID()
    let name: String
    let url: String
}
struct Moves: Codable, Identifiable {
    let id = UUID()
    var move: Move
}
struct APIInfo: Codable, Identifiable {
    let id = UUID()
    let abilities: [Abilities]
    let base_experience: Int
    let forms: [Forms]
    let height: Int
    //let held_items:
    let location_area_encounters: String
    let moves: [Moves]
    let name: String
    //let past_types:
    let species: Species
    let sprites: Sprites
    let stats: [Stats]
    let types: [Types]
    let weight: Int
}
struct Results: Codable, Identifiable {
    let id = UUID()
    let name: String
    let url: String
}

struct Link: Codable, Identifiable {
    let id = UUID()
    let results: [Results]
}



class Data {
        func fetchName(completion: @escaping ([Results]) -> () ){
            guard let url = URL(string: "https://pokeapi.co/api/v2/pokemon/?limit=1118") else {return}
                
            URLSession.shared.dataTask(with: url) { data, response, error in
                    let jsonResult = try! JSONDecoder().decode(Link.self, from: data!)
                    DispatchQueue.main.async {
                        completion(jsonResult.results)
                    }
                }.resume()
        }
        func fetchInfo(link: String, completion: @escaping (APIInfo) -> () ){
            
            guard let url = URL(string: link) else {
                print("error")
                return
            }
            URLSession.shared.dataTask(with: url) {data, response, error in
                let jsonResult = try! JSONDecoder().decode(APIInfo.self, from: data!)
                
                DispatchQueue.main.async {
                    completion(jsonResult)
                }
            }.resume()
        }
    }

Answer 1

例如，添加CodingKeys并省略id

struct Ability: Codable, Identifiable{
    let id = UUID()
    let name: String
    let url: String

    private enum CodingKeys: String, CodingKey { case name, url }
}