rust/src/test/compile-fail/lint-unused-extern-crate.rs

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2014-09-11 12:14:43 -05:00
// 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.
#![feature(globs)]
#![deny(unused_extern_crate)]
#![allow(unused_variable)]
extern crate libc; //~ ERROR: unused extern crate
extern crate "collections" as collecs; // no error, it is used
extern crate rand; // no error, the use marks it as used
// even if imported objects aren't used
extern crate time; // no error, the use * marks it as used
#[allow(unused_imports)]
use rand::isaac::IsaacRng;
use time::*;
fn main() {
let x: collecs::vec::Vec<uint> = Vec::new();
let y = now();
}