From e140c03b9b5e2f9e58a230a51646af5c3f9e85e5 Mon Sep 17 00:00:00 2001
From: may <m4rch3n1ng@gmail.com>
Date: Thu, 12 Sep 2024 23:54:36 +0200
Subject: [PATCH] Remove `Clone` bound for `graphics::Cache::clear`

---
 graphics/src/cache.rs | 19 ++++++++++---------
 1 file changed, 10 insertions(+), 9 deletions(-)

diff --git a/graphics/src/cache.rs b/graphics/src/cache.rs
index bbba79eb40..7db80a012f 100644
--- a/graphics/src/cache.rs
+++ b/graphics/src/cache.rs
@@ -1,6 +1,7 @@
 //! Cache computations and efficiently reuse them.
 use std::cell::RefCell;
 use std::fmt;
+use std::mem;
 use std::sync::atomic::{self, AtomicU64};
 
 /// A simple cache that stores generated values to avoid recomputation.
@@ -58,18 +59,18 @@ impl<T> Cache<T> {
     }
 
     /// Clears the [`Cache`].
-    pub fn clear(&self)
-    where
-        T: Clone,
-    {
-        use std::ops::Deref;
+    pub fn clear(&self) {
+        let mut state = self.state.borrow_mut();
+
+        let previous =
+            mem::replace(&mut *state, State::Empty { previous: None });
 
-        let previous = match self.state.borrow().deref() {
-            State::Empty { previous } => previous.clone(),
-            State::Filled { current } => Some(current.clone()),
+        let previous = match previous {
+            State::Empty { previous } => previous,
+            State::Filled { current } => Some(current),
         };
 
-        *self.state.borrow_mut() = State::Empty { previous };
+        *state = State::Empty { previous };
     }
 }