rustdoc search: prefer stable items in search results

fixes https://github.com/rust-lang/rust/issues/138067

1 files changed, 8 insertions, 1 deletions

diff --git a/src/librustdoc/html/render/mod.rs b/src/librustdoc/html/render/mod.rs
index 66d5aafa3c1..29917bb0fca 100644
--- a/src/librustdoc/html/render/mod.rs
+++ b/src/librustdoc/html/render/mod.rs
@@ -50,7 +50,8 @@ use std::{fs, str};
 use askama::Template;
 use itertools::Either;
 use rustc_attr_data_structures::{
-    ConstStability, DeprecatedSince, Deprecation, RustcVersion, StabilityLevel, StableSince,
+    ConstStability, DeprecatedSince, Deprecation, RustcVersion, Stability, StabilityLevel,
+    StableSince,
 };
 use rustc_data_structures::fx::{FxHashSet, FxIndexMap, FxIndexSet};
 use rustc_hir::Mutability;
@@ -140,6 +141,12 @@ pub(crate) struct IndexItem {
     pub(crate) search_type: Option<IndexItemFunctionType>,
     pub(crate) aliases: Box<[Symbol]>,
     pub(crate) deprecation: Option<Deprecation>,
+    pub(crate) stability: Option<Stability>,
+}
+impl IndexItem {
+    fn is_unstable(&self) -> bool {
+        matches!(&self.stability, Some(Stability { level: StabilityLevel::Unstable { .. }, .. }))
+    }
 }
 
 /// A type used for the search index.