File: feature-gate-unboxed-closures.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 (18 lines) | stat: -rw-r--r-- 469 bytes parent folder | download | duplicates (12) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
 
#![feature(fn_traits)]

struct Test;

impl FnOnce<(u32, u32)> for Test {
//~^ ERROR the precise format of `Fn`-family traits' type parameters is subject to change
//~| ERROR manual implementations of `FnOnce` are experimental
    type Output = u32;

    extern "rust-call" fn call_once(self, (a, b): (u32, u32)) -> u32 {
        a + b
    }
    //~^^^ ERROR "rust-call" ABI is experimental and subject to change
}

fn main() {
    assert_eq!(Test(1u32, 2u32), 3u32);
}