File: macros.rs

package info (click to toggle)
rustc 1.88.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 934,128 kB
  • sloc: xml: 158,127; python: 36,062; javascript: 19,855; sh: 19,700; cpp: 18,947; ansic: 12,993; asm: 4,792; makefile: 690; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (36 lines) | stat: -rw-r--r-- 730 bytes parent folder | download | duplicates (15)
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
27
28
29
30
31
32
33
34
35
36
// This test is similar to `basic.rs`, but with macros defining local items.

//@ run-pass
//@ edition:2018

#![allow(non_camel_case_types)]

// Test that ambiguity errors are not emitted between `self::test` and
// `::test`, assuming the latter (crate) is not in `extern_prelude`.
macro_rules! m1 {
    () => {
        mod test {
            pub struct Foo(pub ());
        }
    }
}
use test::Foo;
m1!();

// Test that qualified paths can refer to both the external crate and local item.
macro_rules! m2 {
    () => {
        mod std {
            pub struct io(pub ());
        }
    }
}
use ::std::io as std_io;
use self::std::io as local_io;
m2!();

fn main() {
    Foo(());
    let _ = std_io::stdout();
    local_io(());
}