63 lines
1.7 KiB
Rust
63 lines
1.7 KiB
Rust
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// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// edition:2018
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#![feature(uniform_paths)]
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// This test is similar to `macros.rs`, but nested in modules.
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mod foo {
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// Test that ambiguity errors are not emitted between `self::test` and
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// `::test`, assuming the latter (crate) is not in `extern_prelude`.
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macro_rules! m1 {
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() => {
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mod test {
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pub struct Foo(pub ());
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}
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}
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}
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pub use test::Foo;
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m1!();
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// Test that qualified paths can refer to both the external crate and local item.
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macro_rules! m2 {
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() => {
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mod std {
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pub struct io(pub ());
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}
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}
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}
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pub use ::std::io as std_io;
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pub use self::std::io as local_io;
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m2!();
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}
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// Test that we can refer to the external crate unqualified
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// (when there isn't a local item with the same name).
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use std::io;
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mod bar {
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// Also test the unqualified external crate import in a nested module,
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// to show that the above import doesn't resolve through a local `std`
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// item, e.g. the automatically injected `extern crate std;`, which in
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// the Rust 2018 should no longer be visible through `crate::std`.
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pub use std::io;
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}
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fn main() {
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foo::Foo(());
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foo::std_io::stdout();
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foo::local_io(());
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io::stdout();
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bar::io::stdout();
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}
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