From 5f4bce6d2b627efaf120d9f26b3acdcee6b75db2 Mon Sep 17 00:00:00 2001
From: Micha Reiser <micha@reiser.io>
Date: Thu, 1 Jun 2023 12:20:49 +0200
Subject: [PATCH] Implement `IntoFormat` for `&T` (#4781)

---
 crates/ruff_formatter/shared_traits.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/crates/ruff_formatter/shared_traits.rs b/crates/ruff_formatter/shared_traits.rs
index f427934f31..aab0120ea7 100644
--- a/crates/ruff_formatter/shared_traits.rs
+++ b/crates/ruff_formatter/shared_traits.rs
@@ -44,6 +44,18 @@ where
     }
 }
 
+/// Implement [`IntoFormat`] for references to types that implement [`AsFormat`].
+impl<'a, T, C> IntoFormat<C> for &'a T
+where
+    T: AsFormat<C>,
+{
+    type Format = T::Format<'a>;
+
+    fn into_format(self) -> Self::Format {
+        AsFormat::format(self)
+    }
+}
+
 /// Formatting specific [`Iterator`] extensions
 pub trait FormattedIterExt {
     /// Converts every item to an object that knows how to format it.