src/test/ui/proc-macro/auxiliary/derive-unstable.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     "unsafe fn foo() -> u32 { ::std::intrinsics::abort() }".parse().unwrap()
  14 }