From 4a3c4ac72cbbcfbdcfdac991ca28d40c9887332a Mon Sep 17 00:00:00 2001
From: Herwin <herwinw@users.noreply.github.com>
Date: Tue, 24 Sep 2024 14:47:32 +0200
Subject: [PATCH] Update Set#merge for Ruby 3.3 behaviour

Support multiple arguments
---
 lib/set.rb | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/lib/set.rb b/lib/set.rb
index 08a31e29b..1e0fbbaf6 100644
--- a/lib/set.rb
+++ b/lib/set.rb
@@ -288,11 +288,13 @@ def each(&block)
     end
   end
 
-  def merge(other)
-    unless other.is_a?(Enumerable)
-      raise ArgumentError, "value must be enumerable"
+  def merge(*others)
+    others.each do |other|
+      unless other.is_a?(Enumerable)
+        raise ArgumentError, "value must be enumerable"
+      end
+      other.each { |element| add(element) }
     end
-    other.each { |element| add(element) }
     self
   end