src/test/run-pass/proc-macro/auxiliary/derive-b.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(B, attributes(B, C))]
  11 pub fn derive(input: TokenStream) -> TokenStream {
  12     let input = input.to_string();
  13     assert!(input.contains("#[B [ arbitrary tokens ]]"));
  14     assert!(input.contains("struct B {"));
  15     assert!(input.contains("#[C]"));
  16     "".parse().unwrap()
  17 }