tests/ui/proc-macro/auxiliary/derive-unstable-2.rs

   1 // force-host
   2 // no-prefer-dynamic
   3
   4 #![crate_type = "proc-macro"]
   5
   6 extern crate proc_macro;
   7
   8 use proc_macro::TokenStream;
   9
  10 #[proc_macro_derive(Unstable)]
  11 pub fn derive(_input: TokenStream) -> TokenStream {
  12
  13     "
  14         #[rustc_foo]
  15         fn foo() {}
  16     ".parse().unwrap()
  17 }