From f6694522ac67221a2670a75533ebf366534994c6 Mon Sep 17 00:00:00 2001
From: Oskar Eichler <oskar@songstats.com>
Date: Fri, 28 Aug 2026 03:19:14 +0300
Subject: [PATCH] Process message stacks without intermediate traversal
 allocations

---
 lib/websocket/extensions.rb | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/lib/websocket/extensions.rb b/lib/websocket/extensions.rb
index 14ca7ab..bb2901c 100644
--- a/lib/websocket/extensions.rb
+++ b/lib/websocket/extensions.rb
@@ -135,23 +135,25 @@ def valid_frame_rsv(frame)
     alias :valid_frame_rsv? :valid_frame_rsv
 
     def process_incoming_message(message)
-      @sessions.reverse.inject(message) do |msg, (ext, session)|
+      @sessions.reverse_each do |ext, session|
         begin
-          session.process_incoming_message(msg)
+          message = session.process_incoming_message(message)
         rescue => error
           raise ExtensionError, [ext.name, error.message].join(': ')
         end
       end
+      message
     end
 
     def process_outgoing_message(message)
-      @sessions.inject(message) do |msg, (ext, session)|
+      @sessions.each do |ext, session|
         begin
-          session.process_outgoing_message(msg)
+          message = session.process_outgoing_message(message)
         rescue => error
           raise ExtensionError, [ext.name, error.message].join(': ')
         end
       end
+      message
     end
 
     def close