File: extern-prelude-extern-crate-restricted-shadowing.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg3-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, sid, trixie
  • size: 893,396 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,051; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (26 lines) | stat: -rw-r--r-- 433 bytes parent folder | download | duplicates (5) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
 
//@ aux-build:two_macros.rs

macro_rules! define_vec {
    () => {
        extern crate std as Vec;
    }
}

define_vec!();

mod m {
    fn check() {
        Vec::panic!(); //~ ERROR `Vec` is ambiguous
    }
}

macro_rules! define_other_core {
    () => {
        extern crate std as core;
        //~^ ERROR macro-expanded `extern crate` items cannot shadow names passed with `--extern`
    }
}

define_other_core!();

fn main() {}