From 54ad92ce913629d1d1f623f4b14d51244554a59c Mon Sep 17 00:00:00 2001
From: Héctor Ramón Jiménez <hector0193@gmail.com>
Date: Tue, 2 Aug 2022 17:34:04 +0200
Subject: Build `UserInterface` only once on `Outcome::Chain`

---
 winit/src/application.rs | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/winit/src/application.rs b/winit/src/application.rs
index 3d58da0f..3a5c3dac 100644
--- a/winit/src/application.rs
+++ b/winit/src/application.rs
@@ -662,17 +662,16 @@ pub fn run_command<A, E>(
                 let mut current_cache = std::mem::take(cache);
                 let mut current_operation = Some(action.into_operation());
 
-                while let Some(mut operation) = current_operation.take() {
-                    let mut user_interface = build_user_interface(
-                        application,
-                        current_cache,
-                        renderer,
-                        state.logical_size(),
-                        debug,
-                    );
+                let mut user_interface = build_user_interface(
+                    application,
+                    current_cache,
+                    renderer,
+                    state.logical_size(),
+                    debug,
+                );
 
+                while let Some(mut operation) = current_operation.take() {
                     user_interface.operate(renderer, operation.as_mut());
-                    current_cache = user_interface.into_cache();
 
                     match operation.finish() {
                         operation::Outcome::None => {}
@@ -687,6 +686,7 @@ pub fn run_command<A, E>(
                     }
                 }
 
+                current_cache = user_interface.into_cache();
                 *cache = current_cache;
             }
         }
-- 
cgit