File: inconsistent-modes.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg3-1
  • links: PTS, VCS
  • area: main
  • in suites: sid
  • 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 (25 lines) | stat: -rw-r--r-- 996 bytes parent folder | download | duplicates (11)
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
// This test ensures that or patterns require binding mode consistency across arms.

#![allow(non_camel_case_types)]
fn main() {
    // One level:
    let (Ok(a) | Err(ref a)): Result<&u8, u8> = Ok(&0);
    //~^ ERROR variable `a` is bound inconsistently
    let (Ok(ref mut a) | Err(a)): Result<u8, &mut u8> = Ok(0);
    //~^ ERROR variable `a` is bound inconsistently
    let (Ok(ref a) | Err(ref mut a)): Result<&u8, &mut u8> = Ok(&0);
    //~^ ERROR variable `a` is bound inconsistently
    //~| ERROR mismatched types
    let (Ok((ref a, b)) | Err((ref mut a, ref b))) = Ok((0, &0));
    //~^ ERROR variable `a` is bound inconsistently
    //~| ERROR variable `b` is bound inconsistently
    //~| ERROR mismatched types

    // Two levels:
    let (Ok(Ok(a) | Err(a)) | Err(ref a)) = Err(0);
    //~^ ERROR variable `a` is bound inconsistently

    // Three levels:
    let (Ok([Ok((Ok(ref a) | Err(a),)) | Err(a)]) | Err(a)) = Err(&1);
    //~^ ERROR variable `a` is bound inconsistently
}