//@ force-host //@ no-prefer-dynamic #![crate_type = "proc-macro"] extern crate proc_macro; use proc_macro::TokenStream; // Add a function to shift DefIndex of registrar function #[cfg(cfail2)] fn foo() {} #[proc_macro_derive(IncrementalMacro)] pub fn derive(input: TokenStream) -> TokenStream { #[cfg(cfail2)] { foo(); } "".parse().unwrap() }