tests/ui/proc-macro/auxiliary/gen-macro-rules.rs


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// force-host
// no-prefer-dynamic

#![crate_type = "proc-macro"]

extern crate proc_macro;
use proc_macro::TokenStream;

#[proc_macro_derive(repro)]
pub fn proc_macro_hack_expr(_input: TokenStream) -> TokenStream {
    "macro_rules! m {()=>{}}".parse().unwrap()
}