File: macro-inner-attributes.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 (20 lines) | stat: -rw-r--r-- 398 bytes parent folder | download | duplicates (2) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
#![feature(rustc_attrs)]

macro_rules! test { ($nm:ident,
                     #[$a:meta],
                     $i:item) => (mod $nm { #![$a] $i }); }

test!(a,
      #[cfg(FALSE)],
      pub fn bar() { });

test!(b,
      #[cfg(not(FALSE))],
      pub fn bar() { });

#[rustc_dummy]
fn main() {
    a::bar();
    //~^ ERROR failed to resolve: use of undeclared crate or module `a`
    b::bar();
}