| // Copyright 2014 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. |
| |
| // aux-build:lint_unused_extern_crate.rs |
| // aux-build:lint_unused_extern_crate2.rs |
| // aux-build:lint_unused_extern_crate3.rs |
| // aux-build:lint_unused_extern_crate4.rs |
| // aux-build:lint_unused_extern_crate5.rs |
| |
| #![deny(unused_extern_crates)] |
| #![allow(unused_variables)] |
| #![allow(deprecated)] |
| |
| extern crate lint_unused_extern_crate5; //~ ERROR: unused extern crate |
| |
| pub extern crate lint_unused_extern_crate4; // no error, it is re-exported |
| |
| extern crate lint_unused_extern_crate3; // no error, it is used |
| |
| extern crate lint_unused_extern_crate2; // no error, the use marks it as used |
| // even if imported objects aren't used |
| |
| extern crate lint_unused_extern_crate as other; // no error, the use * marks it as used |
| |
| #[allow(unused_imports)] |
| use lint_unused_extern_crate2::foo as bar; |
| |
| use other::*; |
| |
| mod foo { |
| // Test that this is unused even though an earler `extern crate` is used. |
| extern crate lint_unused_extern_crate2; //~ ERROR unused extern crate |
| } |
| |
| fn main() { |
| lint_unused_extern_crate3::foo(); |
| let y = foo(); |
| } |