| // Copyright 2015 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| // `#[derive(Trait)]` works for empty structs/variants with braces |
| |
| #![feature(rustc_private)] |
| |
| extern crate serialize as rustc_serialize; |
| |
| #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, |
| Default, Debug, RustcEncodable, RustcDecodable)] |
| struct S {} |
| |
| #[derive(Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash, |
| Debug, RustcEncodable, RustcDecodable)] |
| enum E { |
| V {}, |
| U, |
| } |
| |
| fn main() { |
| let s = S {}; |
| let s1 = s; |
| let s2 = s.clone(); |
| assert_eq!(s, s1); |
| assert_eq!(s, s2); |
| assert!(!(s < s1)); |
| assert_eq!(format!("{:?}", s), "S"); |
| |
| let e = E::V {}; |
| let e1 = e; |
| let e2 = e.clone(); |
| assert_eq!(e, e1); |
| assert_eq!(e, e2); |
| assert!(!(e < e1)); |
| assert_eq!(format!("{:?}", e), "V"); |
| } |