Rollup merge of #145100 - GuillaumeGomez:rank-doc-alias-lower, r=lolbinarycat

Rank doc aliases lower than equivalently matched items

Follow-up of https://github.com/rust-lang/rust/pull/143988.

cc `@lolbinarycat`

3 files changed, 54 insertions, 0 deletions

diff --git a/src/librustdoc/html/static/js/search.js b/src/librustdoc/html/static/js/search.js
index 9e422040db0..10e01b4e262 100644
--- a/src/librustdoc/html/static/js/search.js
+++ b/src/librustdoc/html/static/js/search.js
@@ -3365,6 +3365,13 @@ class DocSearch {
                     return a - b;
                 }
 
+                // sort doc alias items later
+                a = Number(aaa.item.is_alias === true);
+                b = Number(bbb.item.is_alias === true);
+                if (a !== b) {
+                    return a - b;
+                }
+
                 // sort by item name (lexicographically larger goes later)
                 let aw = aaa.word;
                 let bw = bbb.word;
diff --git a/tests/rustdoc-js/doc-alias-after-other-items.js b/tests/rustdoc-js/doc-alias-after-other-items.js
new file mode 100644
index 00000000000..5b22ef67698
--- /dev/null
+++ b/tests/rustdoc-js/doc-alias-after-other-items.js
@@ -0,0 +1,38 @@
+// exact-check
+
+// Checking that doc aliases are always listed after items with equivalent matching.
+
+const EXPECTED = [
+    {
+        'query': 'coo',
+        'others': [
+            {
+                'path': 'doc_alias_after_other_items',
+                'name': 'Foo',
+                'href': '../doc_alias_after_other_items/struct.Foo.html',
+            },
+            {
+                'path': 'doc_alias_after_other_items',
+                'name': 'bar',
+                'alias': 'Boo',
+                'is_alias': true
+            },
+        ],
+    },
+    {
+        'query': '"confiture"',
+        'others': [
+            {
+                'path': 'doc_alias_after_other_items',
+                'name': 'Confiture',
+                'href': '../doc_alias_after_other_items/struct.Confiture.html',
+            },
+            {
+                'path': 'doc_alias_after_other_items',
+                'name': 'this_is_a_long_name',
+                'alias': 'Confiture',
+                'is_alias': true
+            },
+        ],
+    },
+];
diff --git a/tests/rustdoc-js/doc-alias-after-other-items.rs b/tests/rustdoc-js/doc-alias-after-other-items.rs
new file mode 100644
index 00000000000..2ed555c8e2f
--- /dev/null
+++ b/tests/rustdoc-js/doc-alias-after-other-items.rs
@@ -0,0 +1,9 @@
+pub struct Foo;
+
+#[doc(alias = "Boo")]
+pub fn bar() {}
+
+pub struct Confiture;
+
+#[doc(alias = "Confiture")]
+pub fn this_is_a_long_name() {}