How to extend float3 or any other built-in type to conform to the Codable protocol?

Question

In trying to serialize an array of float3 objects with the basic JSONEncoder, it\'s revealed that float3 does not conform to the Codable protocol, so this cannot be done.

Answer 1

I think that it is worth mentioning that you can simply use an unkeyed container to encode/decode your float3 properties as an array:

extension float3: Codable {
    public init(from decoder: Decoder) throws {
        var container = try decoder.unkeyedContainer()
        try self.init(container.decode([Float].self))
    }
    public func encode(to encoder: Encoder) throws {
        var container = encoder.unkeyedContainer()
        try container.encode([x,y,z])
    }
}