File: nested_macro_privacy.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 (17 lines) | stat: -rw-r--r-- 349 bytes parent folder | download | duplicates (14) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
#![feature(decl_macro)]

macro n($foo:ident, $S:ident, $i:ident, $m:ident) {
    mod $foo {
        #[derive(Default)]
        pub struct $S { $i: u32 }
        pub macro $m($e:expr) { $e.$i }
    }
}

n!(foo, S, i, m);

fn main() {
    use foo::{S, m};
    S::default().i; //~ ERROR field `i` of struct `S` is private
    m!(S::default()); // ok
}