From d98aaf7f800c52708012820b1bc9c6c21effad87 Mon Sep 17 00:00:00 2001
From: zachs18 <8355914+zachs18@users.noreply.github.com>
Date: Sun, 29 Jun 2025 18:38:46 -0500
Subject: [PATCH] Show auto trait and blanket impls for `!`

Add an empty `impl ! {}` so `rustdoc` generates auto trait impls and blanket impls on `!`'s documentation page.
---
 library/core/src/primitive_docs.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/library/core/src/primitive_docs.rs b/library/core/src/primitive_docs.rs
index 0ac887f99dc89..98a3b784233f1 100644
--- a/library/core/src/primitive_docs.rs
+++ b/library/core/src/primitive_docs.rs
@@ -316,6 +316,11 @@ mod prim_bool {}
 #[unstable(feature = "never_type", issue = "35121")]
 mod prim_never {}
 
+// Required to make auto trait impls render.
+// See src/librustdoc/passes/collect_trait_impls.rs:collect_trait_impls
+#[doc(hidden)]
+impl ! {}
+
 #[rustc_doc_primitive = "char"]
 #[allow(rustdoc::invalid_rust_codeblocks)]
 /// A character type.