Auto merge of #34232 - ollie27:rustdoc_inline, r=alexcrichton

rustdoc: Don't inline #[doc(hidden)] pub use

Currently if a `#[doc(hidden)] pub use` item is inlined the `hidden`
attribute is ignored so the item can appear in the docs. By never inlining
such imports, they can be stripped.

An example in `std` is [`__OsLocalKeyInner`](https://doc.rust-lang.org/nightly/std/thread/struct.__OsLocalKeyInner.html) which clearly should not be documented.

2 files changed, 42 insertions, 0 deletions

diff --git a/src/test/rustdoc/inline_cross/hidden-use.rs b/src/test/rustdoc/inline_cross/hidden-use.rs
new file mode 100644
index 00000000000..dd668c20362
--- /dev/null
+++ b/src/test/rustdoc/inline_cross/hidden-use.rs
@@ -0,0 +1,22 @@
+// 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.
+
+// aux-build:rustdoc-hidden.rs
+// build-aux-docs
+// ignore-cross-compile
+
+extern crate rustdoc_hidden;
+
+// @has hidden_use/index.html
+// @!has - 'rustdoc_hidden'
+// @!has - 'Bar'
+// @!has hidden_use/struct.Bar.html
+#[doc(hidden)]
+pub use rustdoc_hidden::Bar;
diff --git a/src/test/rustdoc/inline_local/hidden-use.rs b/src/test/rustdoc/inline_local/hidden-use.rs
new file mode 100644
index 00000000000..1b1dafcf58b
--- /dev/null
+++ b/src/test/rustdoc/inline_local/hidden-use.rs
@@ -0,0 +1,20 @@
+// 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 private {
+    pub struct Foo {}
+}
+
+// @has hidden_use/index.html
+// @!has - 'private'
+// @!has - 'Foo'
+// @!has hidden_use/struct.Foo.html
+#[doc(hidden)]
+pub use private::Foo;