From 862211d540fe54deb46daa661716cb06a74151f8 Mon Sep 17 00:00:00 2001
From: Florian Nagel <florian.nagel@senacor.com>
Date: Fri, 25 Feb 2022 14:36:23 +0100
Subject: [PATCH] Disable ``[`new-without-default`]`` for new() methods that
 are marked with '#[doc(hidden)]'

Fixes issue #8152
---
 clippy_lints/src/new_without_default.rs |  4 ++++
 tests/ui/new_without_default.rs         | 10 ++++++++++
 2 files changed, 14 insertions(+)

diff --git a/clippy_lints/src/new_without_default.rs b/clippy_lints/src/new_without_default.rs
index 47121ad84f2..b40425bb635 100644
--- a/clippy_lints/src/new_without_default.rs
+++ b/clippy_lints/src/new_without_default.rs
@@ -85,6 +85,10 @@ fn check_item(&mut self, cx: &LateContext<'tcx>, item: &'tcx hir::Item<'_>) {
                             // can't be implemented for unsafe new
                             return;
                         }
+                        if clippy_utils::is_doc_hidden(cx.tcx.hir().attrs(id)) {
+                            // shouldn't be implemented when it is hidden in docs
+                            return;
+                        }
                         if impl_item
                             .generics
                             .params
diff --git a/tests/ui/new_without_default.rs b/tests/ui/new_without_default.rs
index c76e3b42438..e94f99c95f4 100644
--- a/tests/ui/new_without_default.rs
+++ b/tests/ui/new_without_default.rs
@@ -201,4 +201,14 @@ pub fn new() -> Self {
     }
 }
 
+// see issue #8152
+// This should not create any lints
+pub struct DocHidden;
+impl DocHidden {
+    #[doc(hidden)]
+    pub fn new() -> Self {
+        DocHidden
+    }
+}
+
 fn main() {}