src/test/ui/proc-macro/auxiliary/derive-atob.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(AToB)]
  11 pub fn derive(input: TokenStream) -> TokenStream {
  12     let input = input.to_string();
  13     assert_eq!(input, "struct A;");
  14     "struct B;".parse().unwrap()
  15 }