File: unboxed-closures-call-sugar-autoderef.rs

package info (click to toggle)
rustc 1.87.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 925,564 kB
  • sloc: xml: 158,127; python: 36,039; javascript: 19,761; sh: 19,737; cpp: 18,981; ansic: 13,133; asm: 4,376; makefile: 710; perl: 29; lisp: 28; ruby: 19; sql: 11
file content (13 lines) | stat: -rw-r--r-- 286 bytes parent folder | download | duplicates (16) 
1
2
3
4
5
6
7
8
9
10
11
12
13
 
//@ run-pass
// Test that the call operator autoderefs when calling a bounded type parameter.

fn call_with_2<F>(x: &mut F) -> isize
    where F : FnMut(isize) -> isize
{
    x(2) // look ma, no `*`
}

pub fn main() {
    let z = call_with_2(&mut |x| x - 22);
    assert_eq!(z, -20);
}