rust/src/test/ui/issue-50187.rs

// Copyright 2018 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.

// compile-pass

#![feature(use_extern_macros, decl_macro)]

mod type_ns {
    pub type A = u8;
}
mod value_ns {
    pub const A: u8 = 0;
}
mod macro_ns {
    pub macro A() {}
}

mod merge2 {
    pub use type_ns::A;
    pub use value_ns::A;
}
mod merge3 {
    pub use type_ns::A;
    pub use value_ns::A;
    pub use macro_ns::A;
}

mod use2 {
    pub use merge2::A;
}
mod use3 {
    pub use merge3::A;
}

fn main() {
    type B2 = use2::A;
    let a2 = use2::A;

    type B3 = use3::A;
    let a3 = use3::A;
    use3::A!();
}