rust/tests/ui/proc-macro/auxiliary/issue-39889.rs
2023-01-11 09:32:08 +00:00

18 lines
336 B
Rust

// force-host
// no-prefer-dynamic
#![crate_type = "proc-macro"]
extern crate proc_macro;
use proc_macro::TokenStream;
#[proc_macro_derive(Issue39889)]
pub fn f(_input: TokenStream) -> TokenStream {
let rules = r#"
macro_rules! id {
($($tt:tt)*) => { $($tt)* };
}
"#;
rules.parse().unwrap()
}