mirror of
https://github.com/rust-lang/rust.git
synced 2025-11-03 22:49:17 +00:00
30 lines
451 B
Rust
30 lines
451 B
Rust
//@ check-pass
|
|
//@ edition:2021
|
|
//@ proc-macro: test-macros.rs
|
|
|
|
#![no_std] // Don't load unnecessary hygiene information from std
|
|
extern crate std;
|
|
|
|
#[macro_use]
|
|
extern crate test_macros;
|
|
|
|
macro_rules! foo {
|
|
($($path:ident)::*) => (
|
|
test_macros::recollect!(
|
|
$($path)::*
|
|
)
|
|
)
|
|
}
|
|
|
|
macro_rules! baz {
|
|
() => (
|
|
foo!($crate::BAR)
|
|
)
|
|
}
|
|
|
|
pub const BAR: u32 = 19;
|
|
|
|
fn main(){
|
|
std::println!("{}", baz!());
|
|
}
|