serialize.rs

use std::io::{self, Read};

use protobuf;

use rocket::{Request, Data, Outcome::*};
use rocket::data::{FromDataSimple, Outcome, Transform, Transformed};
use rocket::http::Status;

// We have to involve a local trait for *reasons*
trait FromDataMarker {}
impl<T> FromDataMarker for T where T: protobuf::Message {}

impl<T> FromDataSimple for T
where T: protobuf::Message + FromDataMarker {
    type Error = ();

    fn from_data(req: &Request, data: Data) -> Outcome<T, String> {
        let mut object = T::new();
        // object.merge_from(data);

        Success(object)
    }

}

^ type parameter T must be used as the type parameter for some local type