src/tools/clippy/tests/ui/needless_pass_by_value_proc_macro.rs

   1
   2
   3 #![crate_type = "proc-macro"]
   4 #![warn(needless_pass_by_value)]
   5
   6 extern crate proc_macro;
   7
   8 use proc_macro::TokenStream;
   9
  10 #[proc_macro_derive(Foo)]
  11 pub fn foo(_input: TokenStream) -> TokenStream { unimplemented!() }