Allow to create JSON object from any Encodable object, and to decode into a Decodable object conveniently

[catjia1011]

This pull request provides a convenient way for SwitfyJSON to integrate with other Codable objects.

example:

struct Student: Codable {
    let id: Int, name: String
}

let student = Student(id: 1, name: "Bill")
let json = JSON(parseEncodable: student)
print(json.rawString(.utf8, options: [])!) // {"id":1,"name":"Bill"}
print(json.decode(Student.self)!.name) // Bill

[toohotz]

Not sure if something like this is still of interest since this PR is more than a year old but I had done something similar when used to encrypt and decrypt Codable objects and you're probably going to want an additional parameter for a custom JSONDecoder and JSONEncoder for those using a custom structure.

[toohotz]

I assume you meant conforming here slight keystroke mixup since "i" and "o" are next to each other 😉

[q240252859]

var json: JSON = ["name": "25.22", "age": 25.0023]
print(json)
{
"age" : 25.002300000000002,
"name" : "25.22"
}

• rawArray : 0 elements
  ▿ rawDictionary : 2 elements
  ▿ 0 : 2 elements
  • key : "age"
  • value : 25.0023
    ▿ 1 : 2 elements
  • key : "name"
  • value : "25.22"
• rawString : ""
• rawNumber : 0
• rawNull :
• rawBool : false
• type : SwiftyJSON.Type.dictionary
• error : nil

[q240252859]

var json: JSON = ["name": "25.22", "age": 25.0023]