//@ run-pass //@ no-prefer-dynamic //@ compile-flags: --test #![crate_type = "proc-macro"] extern crate proc_macro; use proc_macro::TokenStream; // ``` // assert!(true); // ``` #[proc_macro_derive(Foo)] pub fn derive_foo(_input: TokenStream) -> TokenStream { "".parse().unwrap() } #[test] pub fn test_derive() { assert!(true); }