| //@ force-host | |
| //@ no-prefer-dynamic | |
| #![crate_type = "proc-macro"] | |
| #![deny(ambiguous_derive_helpers)] | |
| extern crate proc_macro; | |
| use proc_macro::TokenStream; | |
| #[proc_macro_derive(Trait, attributes(ignore))] //~ ERROR there exists a built-in attribute with the same name | |
| //~| WARN this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! | |
| pub fn deriving(input: TokenStream) -> TokenStream { | |
| TokenStream::new() | |
| } |