File: fn-call-in-const.rs

package info (click to toggle)
rustc-web 1.70.0%2Bdfsg1-7~deb12u2
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,517,048 kB
  • sloc: xml: 147,962; javascript: 10,210; sh: 8,590; python: 8,220; ansic: 5,901; cpp: 4,635; makefile: 4,006; asm: 2,856
file content (23 lines) | stat: -rw-r--r-- 443 bytes parent folder | download | duplicates (6) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
 
// run-pass

#![feature(inline_const)]
#![allow(unused)]

// Some type that is not copyable.
struct Bar;

const fn type_no_copy() -> Option<Bar> {
    None
}

const fn type_copy() -> u32 {
    3
}

const _: [u32; 2] = [type_copy(); 2];

// This is allowed because all promotion contexts use the explicit rules for promotability when
// inside an explicit const context.
const _: [Option<Bar>; 2] = [const { type_no_copy() }; 2];

fn main() {}