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// 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);
}
}
}
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