File: expect-infer-supply-two-infers.rs

package info (click to toggle)
rustc 1.88.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 934,128 kB
  • sloc: xml: 158,127; python: 36,062; javascript: 19,855; sh: 19,700; cpp: 18,947; ansic: 12,993; asm: 4,792; makefile: 690; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (19 lines) | stat: -rw-r--r-- 450 bytes parent folder | download | duplicates (16) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
 
//@ run-pass
#![allow(dead_code)]
#![allow(unused_variables)]
fn with_closure<A, F>(_: F)
    where F: FnOnce(Vec<A>, A)
{
}

fn expect_free_supply_free<'x>(x: &'x u32) {
    with_closure(|mut x: Vec<_>, y| {
        // Shows that the call to `x.push()` is influencing type of `y`...
        x.push(22_u32);

        // ...since we now know the type of `y` and can resolve the method call.
        let _ = y.wrapping_add(1);
    });
}

fn main() { }