File: lifetime_errors_on_promotion_misusage.rs

package info (click to toggle)
rustc 1.86.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid
  • size: 913,560 kB
  • sloc: xml: 158,127; python: 35,921; javascript: 19,689; sh: 19,600; cpp: 18,906; ansic: 13,124; asm: 4,376; makefile: 708; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (28 lines) | stat: -rw-r--r-- 661 bytes parent folder | download | duplicates (8)
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
27
28
//@ edition:2018

use core::{
    convert::identity,
    marker::PhantomPinned,
    mem::drop as stuff,
    pin::pin,
};

fn function_call_stops_borrow_extension() {
    let phantom_pinned = identity(pin!(PhantomPinned));
    //~^ ERROR temporary value dropped while borrowed
    stuff(phantom_pinned)
}

fn promotion_only_works_for_the_innermost_block() {
    let phantom_pinned = {
        let phantom_pinned = pin!(PhantomPinned);
        //~^ ERROR temporary value dropped while borrowed
        phantom_pinned
    };
    stuff(phantom_pinned)
}

fn main() {
    function_call_stops_borrow_extension();
    promotion_only_works_for_the_innermost_block();
}