File: macro-context.rs

package info (click to toggle)
rustc 1.86.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid
  • size: 913,560 kB
  • sloc: xml: 158,127; python: 35,921; javascript: 19,689; sh: 19,600; cpp: 18,906; ansic: 13,124; asm: 4,376; makefile: 708; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (21 lines) | stat: -rw-r--r-- 793 bytes parent folder | download | duplicates (11)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
// (typeof used because it's surprisingly hard to find an unparsed token after a stmt)
macro_rules! m {
    () => ( i ; typeof );   //~ ERROR expected expression, found reserved keyword `typeof`
                            //~| ERROR macro expansion ignores reserved keyword `typeof`
                            //~| ERROR macro expansion ignores `;`
                            //~| ERROR macro expansion ignores `;`
                            //~| ERROR cannot find type `i` in this scope
                            //~| ERROR cannot find value `i` in this scope
                            //~| WARN trailing semicolon in macro
                            //~| WARN this was previously
}

fn main() {
    let a: m!();
    let i = m!();
    match 0 {
        m!() => {}
    }

    m!();
}