File: shadowing.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 (23 lines) | stat: -rw-r--r-- 496 bytes parent folder | download | duplicates (5) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
// Check shadowing in if let guards works as expected.
//@ check-pass

#![feature(if_let_guard)]
#![feature(let_chains)]

fn main() {
    let x: Option<Option<i32>> = Some(Some(6));
    match x {
        Some(x) if let Some(x) = x => {
            let _: i32 = x;
        }
        _ => {}
    }

    let y: Option<Option<Option<i32>>> = Some(Some(Some(-24)));
    match y {
        Some(y) if let Some(y) = y && let Some(y) = y => {
            let _: i32 = y;
        }
        _ => {}
    }
}