File: closure-in-impl-trait.rs

package info (click to toggle)
rustc 1.88.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 934,128 kB
  • sloc: xml: 158,127; python: 36,062; javascript: 19,855; sh: 19,700; cpp: 18,947; ansic: 12,993; asm: 4,792; makefile: 690; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (14 lines) | stat: -rw-r--r-- 318 bytes parent folder | download | duplicates (15) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
 
//@ run-pass
#![allow(unused_must_use)]
fn bug<T>() -> impl Iterator<Item = [(); { |x: u32| { x }; 4 }]> {
    std::iter::empty()
}

fn ok<T>() -> Box<dyn Iterator<Item = [(); { |x: u32| { x }; 4 }]>> {
    Box::new(std::iter::empty())
}

fn main() {
    for _item in ok::<u32>() {}
    for _item in bug::<u32>() {}
}