src/test/compile-fail/extern-crate-visibility.rs


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// Copyright 2016 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.

mod foo {
    extern crate core;
}

// Check that private crates can be used from outside their modules, albeit with warnings
use foo::core::cell; //~ ERROR extern crate `core` is private

fn f() {
    foo::core::cell::Cell::new(0); //~ ERROR extern crate `core` is private

    use foo::*;
    mod core {} // Check that private crates are not glob imported
}

mod bar {
    pub extern crate core;
}

mod baz {
    pub use bar::*;
    use self::core::cell; // Check that public extern crates are glob imported
}

fn main() {}