| // 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. |
| |
| #![allow(dead_code)] |
| |
| // Test that we report an error for unused type parameters in types and traits, |
| // and that we offer a helpful suggestion. |
| |
| struct SomeStruct<A> { x: u32 } |
| //~^ ERROR parameter `A` is never used |
| |
| enum SomeEnum<A> { Nothing } |
| //~^ ERROR parameter `A` is never used |
| |
| // Here T might *appear* used, but in fact it isn't. |
| enum ListCell<T> { |
| //~^ ERROR parameter `T` is never used |
| Cons(Box<ListCell<T>>), |
| Nil |
| } |
| |
| fn main() {} |
