| // Copyright 2013 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. |
| |
| // no-pretty-expanded FIXME #15189 |
| |
| #[cfg(feature = "use_core")] |
| extern crate core; |
| |
| #[macro_use] |
| extern crate derivative; |
| |
| #[derive(Derivative)] |
| #[derivative( |
| PartialEq = "feature_allow_slow_enum", |
| Eq, |
| PartialOrd = "feature_allow_slow_enum", |
| Ord = "feature_allow_slow_enum" |
| )] |
| enum ES<T> { |
| ES1 { x: T }, |
| ES2 { x: T, y: T }, |
| } |
| |
| |
| pub fn main() { |
| let (es11, es12, es21, es22) = ( |
| ES::ES1 { x: 1 }, |
| ES::ES1 { x: 2 }, |
| ES::ES2 { x: 1, y: 1 }, |
| ES::ES2 { x: 1, y: 2 }, |
| ); |
| |
| // in order for both PartialOrd and Ord |
| let ess = [es11, es12, es21, es22]; |
| |
| for (i, es1) in ess.iter().enumerate() { |
| for (j, es2) in ess.iter().enumerate() { |
| let ord = i.cmp(&j); |
| |
| let eq = i == j; |
| let (lt, le) = (i < j, i <= j); |
| let (gt, ge) = (i > j, i >= j); |
| |
| // PartialEq |
| assert_eq!(*es1 == *es2, eq); |
| assert_eq!(*es1 != *es2, !eq); |
| |
| // PartialOrd |
| assert_eq!(*es1 < *es2, lt); |
| assert_eq!(*es1 > *es2, gt); |
| |
| assert_eq!(*es1 <= *es2, le); |
| assert_eq!(*es1 >= *es2, ge); |
| |
| // Ord |
| assert_eq!(es1.cmp(es2), ord); |
| } |
| } |
| } |