#![crate_type = "proc-macro"] #![warn(clippy::needless_pass_by_value)] extern crate proc_macro; use proc_macro::TokenStream; #[proc_macro_derive(Foo)] pub fn foo(_input: TokenStream) -> TokenStream { unimplemented!() } #[proc_macro] pub fn bar(_input: TokenStream) -> TokenStream { unimplemented!() } #[proc_macro_attribute] pub fn baz(_args: TokenStream, _input: TokenStream) -> TokenStream { unimplemented!() }