File: issue-35139.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 (26 lines) | stat: -rw-r--r-- 458 bytes parent folder | download | duplicates (15) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
 
use std::fmt;

pub trait MethodType {
    type GetProp: ?Sized;
}

pub struct MTFn;

impl<'a> MethodType for MTFn { //~ ERROR E0207
    type GetProp = dyn fmt::Debug + 'a;
}

fn bad(a: Box<<MTFn as MethodType>::GetProp>) -> Box<dyn fmt::Debug+'static> {
    a
}

fn dangling(a: &str) -> Box<dyn fmt::Debug> {
    bad(Box::new(a))
}

fn main() {
    let mut s = "hello".to_string();
    let x = dangling(&s);
    s = String::new();
    println!("{:?}", x);
}