From ba3541bbc458a23a8aa665c0489decaf10f452cc Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Wed, 14 Dec 2022 07:38:38 +0900
Subject: [PATCH] mruby-set/set.rb (reset): add reset method defined in Ruby
 2.5

---
 mrbgems/mruby-set/mrblib/set.rb | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/mrbgems/mruby-set/mrblib/set.rb b/mrbgems/mruby-set/mrblib/set.rb
index 821ca65cb..0116e187e 100644
--- a/mrbgems/mruby-set/mrblib/set.rb
+++ b/mrbgems/mruby-set/mrblib/set.rb
@@ -319,4 +319,11 @@ class Set
   end
   alias to_s inspect
 
+  def reset
+    if frozen?
+      raise FrozenError, "can't modify frozen Set"
+    else
+      @hash.rehash
+    end
+  end
 end