Auto merge of #113878 - matthiaskrgr:rollup-u0d3kzx, r=matthiaskrgr

Rollup of 5 pull requests

Successful merges:

 - #113710 (Fix rpath for libdir is specified)
 - #113787 (Update documentation for std::process::Command's new method)
 - #113795 (Properly document `lifetime_mapping` in `OpaqueTy`)
 - #113857 (Add tests for `--document-hidden-items` option)
 - #113871 (Use the correct span for displaying the line following a derive sugge…)

r? `@ghost`
`@rustbot` modify labels: rollup

2 files changed, 72 insertions, 1 deletions

diff --git a/tests/rustdoc/display-hidden-items.rs b/tests/rustdoc/display-hidden-items.rs
new file mode 100644
index 00000000000..d97d5b4a968
--- /dev/null
+++ b/tests/rustdoc/display-hidden-items.rs
@@ -0,0 +1,71 @@
+// Test to ensure that the `--document-hidden-items` option is working as expected.
+// compile-flags: -Z unstable-options --document-hidden-items
+// ignore-tidy-linelength
+
+#![crate_name = "foo"]
+
+// @has 'foo/index.html'
+// @has - '//*[@id="reexport.hidden_reexport"]/code' 'pub use hidden::inside_hidden as hidden_reexport;'
+#[doc(hidden)]
+pub use hidden::inside_hidden as hidden_reexport;
+
+// @has - '//*[@class="item-name"]/a[@class="trait"]' 'TraitHidden'
+// @has 'foo/trait.TraitHidden.html'
+#[doc(hidden)]
+pub trait TraitHidden {}
+
+// @has 'foo/index.html' '//*[@class="item-name"]/a[@class="trait"]' 'Trait'
+pub trait Trait {
+    // @has 'foo/trait.Trait.html'
+    // @has - '//*[@id="associatedconstant.BAR"]/*[@class="code-header"]' 'const BAR: u32 = 0u32'
+    #[doc(hidden)]
+    const BAR: u32 = 0;
+
+    // @has - '//*[@id="method.foo"]/*[@class="code-header"]' 'fn foo()'
+    #[doc(hidden)]
+    fn foo() {}
+}
+
+// @has 'foo/index.html' '//*[@class="item-name"]/a[@class="struct"]' 'Struct'
+// @has 'foo/struct.Struct.html'
+pub struct Struct {
+    // @has - '//*[@id="structfield.a"]/code' 'a: u32'
+    #[doc(hidden)]
+    pub a: u32,
+}
+
+impl Struct {
+    // @has - '//*[@id="method.new"]/*[@class="code-header"]' 'pub fn new() -> Self'
+    #[doc(hidden)]
+    pub fn new() -> Self { Self { a: 0 } }
+}
+
+impl Trait for Struct {
+    // @has - '//*[@id="associatedconstant.BAR"]/*[@class="code-header"]' 'const BAR: u32 = 0u32'
+    // @has - '//*[@id="method.foo"]/*[@class="code-header"]' 'fn foo()'
+}
+// @has - '//*[@id="impl-TraitHidden-for-Struct"]/*[@class="code-header"]' 'impl TraitHidden for Struct'
+impl TraitHidden for Struct {}
+
+// @has 'foo/index.html' '//*[@class="item-name"]/a[@class="enum"]' 'HiddenEnum'
+// @has 'foo/enum.HiddenEnum.html'
+#[doc(hidden)]
+pub enum HiddenEnum {
+    A,
+}
+
+// @has 'foo/index.html' '//*[@class="item-name"]/a[@class="enum"]' 'Enum'
+pub enum Enum {
+    // @has 'foo/enum.Enum.html' '//*[@id="variant.A"]/*[@class="code-header"]' 'A'
+    #[doc(hidden)]
+    A,
+}
+
+// @has 'foo/index.html' '//*[@class="item-name"]/a[@class="mod"]' 'hidden'
+#[doc(hidden)]
+pub mod hidden {
+    // @has 'foo/hidden/index.html'
+    // @has - '//*[@class="item-name"]/a[@class="fn"]' 'inside_hidden'
+    // @has 'foo/hidden/fn.inside_hidden.html'
+    pub fn inside_hidden() {}
+}
diff --git a/tests/ui/modules/issue-107649.stderr b/tests/ui/modules/issue-107649.stderr
index 38a910b57b4..5705e84e0d9 100644
--- a/tests/ui/modules/issue-107649.stderr
+++ b/tests/ui/modules/issue-107649.stderr
@@ -11,7 +11,7 @@ help: consider annotating `Dummy` with `#[derive(Debug)]`
    --> $DIR/auxiliary/dummy_lib.rs:2:1
     |
 2   + #[derive(Debug)]
-3   | #[path = "auxiliary/dummy_lib.rs"]
+3   | pub struct Dummy;
     |
 
 error: aborting due to previous error