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// Copyright 2018 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.
#![feature(trait_alias)]
trait Foo = PartialEq<i32> + Send;
trait Bar = Foo + Sync;
trait I32Iterator = Iterator<Item = i32>;
pub fn main() {
let a: &dyn Bar = &123;
assert!(*a == 123);
let b = Box::new(456) as Box<dyn Foo>;
assert!(*b == 456);
let c: &mut dyn I32Iterator = &mut vec![123].into_iter();
assert_eq!(c.next(), Some(123));
}
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