File: obligation_ice.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg3-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, sid, trixie
  • size: 893,396 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,051; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (17 lines) | stat: -rw-r--r-- 481 bytes parent folder | download | duplicates (5) 
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<_>>());
}