tests/ui/proc-macro/auxiliary/issue-107113.rs

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

#![crate_type = "proc-macro"]

extern crate proc_macro;

use proc_macro::TokenStream;

#[proc_macro_attribute]
pub fn main(_: TokenStream, item: TokenStream) -> TokenStream {
    "fn main() -> std::io::Result<()> { () } ".parse().unwrap()
}