#![feature(plugin, decl_macro)] #![plugin(rocket_codegen)] extern crate rocket; use rocket::{Error, Request}; #[catch(404)] fn err_a(_a: Error, _b: Request, _c: Error) -> &'static str { "hi" } #[catch(404)] fn err_b(_a: (isize, usize)) -> &'static str { "hi" }