// 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 or the MIT license // , at your // option. This file may not be copied, modified, or distributed // except according to those terms. // Test that we report an error for unused type parameters in types. struct SomeStruct<'a> { x: u32 } //~ ERROR parameter `'a` is never used enum SomeEnum<'a> { Nothing } //~ ERROR parameter `'a` is never used trait SomeTrait<'a> { fn foo(&self); } // OK on traits. fn main() {}