| // 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 |
| // aux-build:underscore-imports.rs |
| |
| #![feature(underscore_imports)] |
| #![warn(unused_imports, unused_extern_crates)] |
| |
| #[macro_use] |
| extern crate underscore_imports as _; |
| |
| do_nothing!(); // OK |
| |
| struct S; |
| |
| mod m { |
| pub trait Tr1 { |
| fn tr1_is_in_scope(&self) {} |
| } |
| pub trait Tr2 { |
| fn tr2_is_in_scope(&self) {} |
| } |
| |
| impl Tr1 for ::S {} |
| impl Tr2 for ::S {} |
| } |
| |
| mod unused { |
| use m::Tr1 as _; //~ WARN unused import |
| use S as _; //~ WARN unused import |
| extern crate core as _; // OK |
| } |
| |
| mod outer { |
| mod middle { |
| pub use m::Tr1 as _; |
| pub use m::Tr2 as _; // OK, no name conflict |
| struct Tr1; // OK, no name conflict |
| fn check() { |
| // Both traits are in scope |
| ::S.tr1_is_in_scope(); |
| ::S.tr2_is_in_scope(); |
| } |
| |
| mod inner { |
| // `_` imports are fetched by glob imports |
| use super::*; |
| fn check() { |
| // Both traits are in scope |
| ::S.tr1_is_in_scope(); |
| ::S.tr2_is_in_scope(); |
| } |
| } |
| } |
| |
| // `_` imports are fetched by glob imports |
| use self::middle::*; |
| fn check() { |
| // Both traits are in scope |
| ::S.tr1_is_in_scope(); |
| ::S.tr2_is_in_scope(); |
| } |
| } |
| |
| fn main() {} |