From 3820ef791f3ccb766956d12534ae519f4923ac7e Mon Sep 17 00:00:00 2001
From: "Yukihiro \"Matz\" Matsumoto" <matz@ruby.or.jp>
Date: Thu, 20 Sep 2018 09:07:24 +0900
Subject: Small refactoring in `mruby-hash-ext`.

---
 mrbgems/mruby-hash-ext/mrblib/hash.rb | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/mrbgems/mruby-hash-ext/mrblib/hash.rb b/mrbgems/mruby-hash-ext/mrblib/hash.rb
index eaf54b871..61e4c890c 100644
--- a/mrbgems/mruby-hash-ext/mrblib/hash.rb
+++ b/mrbgems/mruby-hash-ext/mrblib/hash.rb
@@ -126,12 +126,12 @@ class Hash
   #
 
   def compact!
-    h = {}
     keys = self.keys
     nk = keys.select{|k|
       self[k] != nil
     }
     return nil if (keys.size == nk.size)
+    h = {}
     nk.each {|k|
       h[k] = self[k]
     }
@@ -486,6 +486,7 @@ class Hash
     end
     hash
   end
+
   ##
   # call-seq:
   #    hsh.transform_values! {|key| block } -> hsh
-- 
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