Himotokiのがエラーの扱いが柔軟そうだなぁという印象 https://twitter.com/laiso/status/796225531179978752 #CodePiece

CodePiece.swift

import Gloss
import Himotoki


struct GlossObject: Gloss.Decodable {
    let name: String?
    
    public init?(json: JSON) {
        self.name = "name" <~~ json
    }
}

struct HimotokiObject: Himotoki.Decodable {
    let name: String
    
    public static func decode(_ e: Extractor) throws -> HimotokiObject {
        return try HimotokiObject(
            name: e <| "name"
        )
    }
}

class ViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        do {
            let source = "{\"name\": \"natasha\"}"
            let JSON = try JSONSerialization.jsonObject(with: source.data(using: .utf8)!, options: .allowFragments) as! [String: AnyObject]
            
            guard let g = GlossObject(json: JSON) else {
                print("error?")
                return
            }
            print(g.name) // Optional("natasha")
            
            let h = try HimotokiObject.decodeValue(JSON)
            print(h.name) // natasha
        } catch let DecodeError.custom(reason) {
            print(reason)
            abort()
        } catch {
            abort()
        }
        
    }
}