| // Copyright 2012 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. |
| |
| // Test that disallow lifetime parameters that are unused. |
| |
| use std::marker; |
| |
| struct Bivariant<'a>; //~ ERROR parameter `'a` is never used |
| |
| struct Struct<'a, 'd> { //~ ERROR parameter `'d` is never used |
| field: &'a [i32] |
| } |
| |
| trait Trait<'a, 'd> { // OK on traits |
| fn method(&'a self); |
| } |
| |
| fn main() {} |
