File: obligation_ice.rs

package info (click to toggle)
rustc-web 1.78.0%2Bdfsg1-2~deb11u3
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,245,360 kB
  • sloc: xml: 147,985; javascript: 18,022; sh: 11,083; python: 10,265; ansic: 6,172; cpp: 5,023; asm: 4,390; makefile: 4,269
file content (17 lines) | stat: -rw-r--r-- 481 bytes parent folder | download | duplicates (6) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
#![feature(type_alias_impl_trait)]
//@ check-pass

use std::iter::{once, Chain};

trait Trait<'a, 'b: 'a> {}

impl<'a, 'b: 'a, T> Trait<'a, 'b> for std::iter::Cloned<T> {}

type I<'a, 'b: 'a, A: Trait<'a, 'b>> = Chain<A, impl Iterator<Item = &'static str>>;
fn test2<'a, 'b, A: Trait<'a, 'b> + Iterator<Item = &'static str>>(x: A) -> I<'a, 'b, A> {
    x.chain(once("5"))
}

fn main() {
    assert_eq!(vec!["1", "3", "5"], test2(["1", "3"].iter().cloned()).collect::<Vec<_>>());
}