From 74eac39e0610d1f702fe297b84d04212c806738e Mon Sep 17 00:00:00 2001
From: AlphaKeks <85143381+AlphaKeks@users.noreply.github.com>
Date: Tue, 9 Jul 2024 23:08:59 +0200
Subject: [PATCH] Fix clippy warning on `FromRef` derive macro (#2827)

---
 axum-macros/src/from_ref.rs                                   | 2 +-
 .../tests/debug_handler/fail/json_not_deserialize.stderr      | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/axum-macros/src/from_ref.rs b/axum-macros/src/from_ref.rs
index 2ab69eb5..1a27765a 100644
--- a/axum-macros/src/from_ref.rs
+++ b/axum-macros/src/from_ref.rs
@@ -54,7 +54,7 @@ fn expand_field(state: &Ident, idx: usize, field: &Field) -> TokenStream {
     };
 
     quote_spanned! {span=>
-        #[allow(clippy::clone_on_copy)]
+        #[allow(clippy::clone_on_copy, clippy::clone_on_ref_ptr)]
         impl ::axum::extract::FromRef<#state> for #field_ty {
             fn from_ref(state: &#state) -> Self {
                 #body
diff --git a/axum-macros/tests/debug_handler/fail/json_not_deserialize.stderr b/axum-macros/tests/debug_handler/fail/json_not_deserialize.stderr
index 14b3ae83..945c66ff 100644
--- a/axum-macros/tests/debug_handler/fail/json_not_deserialize.stderr
+++ b/axum-macros/tests/debug_handler/fail/json_not_deserialize.stderr
@@ -4,6 +4,8 @@ error[E0277]: the trait bound `for<'de> Struct: serde::de::Deserialize<'de>` is
 7 | async fn handler(_foo: Json<Struct>) {}
   |                        ^^^^^^^^^^^^ the trait `for<'de> serde::de::Deserialize<'de>` is not implemented for `Struct`, which is required by `Json<Struct>: FromRequest<()>`
   |
+  = note: for local types consider adding `#[derive(serde::Deserialize)]` to your `Struct` type
+  = note: for types from other crates check whether the crate offers a `serde` feature flag
   = help: the following other types implement trait `serde::de::Deserialize<'de>`:
             bool
             char
@@ -25,6 +27,8 @@ error[E0277]: the trait bound `for<'de> Struct: serde::de::Deserialize<'de>` is
 7 | async fn handler(_foo: Json<Struct>) {}
   |                        ^^^^^^^^^^^^ the trait `for<'de> serde::de::Deserialize<'de>` is not implemented for `Struct`, which is required by `Json<Struct>: FromRequest<()>`
   |
+  = note: for local types consider adding `#[derive(serde::Deserialize)]` to your `Struct` type
+  = note: for types from other crates check whether the crate offers a `serde` feature flag
   = help: the following other types implement trait `serde::de::Deserialize<'de>`:
             bool
             char