AnyCodable

anycodable.swift

public struct AnyCodable {
    let value: Any
    
    public init(_ value: Any) {
        self.value = value
    }
}

extension AnyCodable: Codable {
    public init(from decoder: Decoder) throws {
        let container = try decoder.singleValueContainer()
        if let v = try? container.decode(String.self) {
            self.value = v
            return
        }
        if let v = try? container.decode(Int.self) {
            self.value = v
            return
        }
        if let v = try? container.decode(Double.self) {
            self.value = v
            return
        }
        if let v = try? container.decode(Float.self) {
            self.value = v
            return
        }
        if let v = try? container.decode(Bool.self) {
            self.value = v
            return
        }
        fatalError("Given type is not supported")
    }
    
    public func encode(to encoder: Encoder) throws {
        var container = encoder.singleValueContainer()
        switch value {
        case let v as String: try container.encode(v)
        case let v as Int: try container.encode(v)
        case let v as Double: try container.encode(v)
        case let v as Float: try container.encode(v)
        case let v as Bool: try container.encode(v)
        default: fatalError("Type \(type(of: value)) not supported")
        }
    }
}

extension AnyCodable: ExpressibleByStringLiteral {
    public init(stringLiteral value: String) {
        self.value = value
    }
}

extension AnyCodable: ExpressibleByIntegerLiteral {
    public init(integerLiteral value: Int) {
        self.value = value
    }
}

extension AnyCodable: ExpressibleByFloatLiteral {
    public init(floatLiteral value: Float) {
        self.value = value
    }
}

extension AnyCodable: ExpressibleByBooleanLiteral {
    public init(booleanLiteral value: Bool) {
        self.value = value
    }
}