3 #![allow(unused_imports)]
5 #![feature(box_syntax)]
6 #![feature(rustc_private)]
8 extern crate rustc_serialize;
10 use rustc_serialize::{Encodable, Decodable};
11 use rustc_serialize::json;
13 #[derive(RustcEncodable, RustcDecodable)]
19 let obj = A { foo: Box::new([true, false]) };
20 let s = json::encode(&obj).unwrap();
21 let obj2: A = json::decode(&s).unwrap();
22 assert_eq!(obj.foo, obj2.foo);