From 27d005a1710e7ccd81020baca635475856485f20 Mon Sep 17 00:00:00 2001
From: Samuel Tardieu <sam@rfc1149.net>
Date: Wed, 27 Aug 2025 00:34:53 +0200
Subject: [PATCH] Document `is_unit_expr()`

---
 clippy_utils/src/lib.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/clippy_utils/src/lib.rs b/clippy_utils/src/lib.rs
index e038a33dca39..df47b9f7e33b 100644
--- a/clippy_utils/src/lib.rs
+++ b/clippy_utils/src/lib.rs
@@ -309,6 +309,7 @@ pub fn is_lang_item_or_ctor(cx: &LateContext<'_>, did: DefId, item: LangItem) ->
     cx.tcx.lang_items().get(item) == Some(did)
 }
 
+/// Checks if `expr` is an empty block or an empty tuple.
 pub fn is_unit_expr(expr: &Expr<'_>) -> bool {
     matches!(
         expr.kind,