Tweak attribute rendering depending on wether or not it is a type alias

1 files changed, 21 insertions, 1 deletions

diff --git a/src/librustdoc/html/render/mod.rs b/src/librustdoc/html/render/mod.rs
index 6b4fd3cd834..f155ea52040 100644
--- a/src/librustdoc/html/render/mod.rs
+++ b/src/librustdoc/html/render/mod.rs
@@ -1201,11 +1201,31 @@ fn render_attributes_in_pre(it: &clean::Item, prefix: &str, cx: &Context<'_>) ->
     })
 }
 
+struct CodeAttribute(String);
+
+impl CodeAttribute {
+    fn render_into(self, w: &mut impl fmt::Write) {
+        write!(w, "<div class=\"code-attribute\">{}</div>", self.0).unwrap();
+    }
+}
+
 // When an attribute is rendered inside a <code> tag, it is formatted using
 // a div to produce a newline after it.
 fn render_attributes_in_code(w: &mut impl fmt::Write, it: &clean::Item, cx: &Context<'_>) {
     for attr in it.attributes_and_repr(cx.tcx(), cx.cache(), false) {
-        write!(w, "<div class=\"code-attribute\">{attr}</div>").unwrap();
+        CodeAttribute(attr).render_into(w);
+    }
+}
+
+/// used for type aliases to only render their `repr` attribute.
+fn render_repr_attributes_in_code(
+    w: &mut impl fmt::Write,
+    cx: &Context<'_>,
+    def_id: DefId,
+    item_type: ItemType,
+) {
+    if let Some(repr) = clean::repr_attributes(cx.tcx(), cx.cache(), def_id, item_type) {
+        CodeAttribute(repr).render_into(w);
     }
 }