File: copy-inference-side-effects.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 (16 lines) | stat: -rw-r--r-- 322 bytes parent folder | download | duplicates (15) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
 
//@ check-pass

#[derive(Clone, Default)]
struct MaybeCopy<T>(T);

impl Copy for MaybeCopy<u8> {}

fn is_copy<T: Copy>(x: T) {
    println!("{}", std::any::type_name::<T>());
}

fn main() {
    is_copy(MaybeCopy::default());
    [MaybeCopy::default(); 13];
    // didn't work, because `Copy` was only checked in the mir
}