| // Copyright 2016 The Rust Project Developers. See the COPYRIGHT |
| // file at the top-level directory of this distribution and at |
| // http://rust-lang.org/COPYRIGHT. |
| // |
| // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or |
| // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license |
| // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your |
| // option. This file may not be copied, modified, or distributed |
| // except according to those terms. |
| |
| // run-rustfix |
| |
| #![feature(in_band_lifetimes)] |
| #![deny(single_use_lifetimes)] |
| #![allow(dead_code)] |
| #![allow(unused_variables)] |
| |
| // Test that we DO warn when lifetime name is used only |
| // once in a fn argument, even with in band lifetimes. |
| |
| fn a(x: &'a u32, y: &'b u32) { |
| //~^ ERROR `'a` only used once |
| //~| ERROR `'b` only used once |
| //~| HELP elide the single-use lifetime |
| //~| HELP elide the single-use lifetime |
| } |
| |
| fn main() { } |