From 24dcfc2db5a1b4b194e2df3ef849bd54f66f36df Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?R=C3=A9gis=20Hanol?= <regis@hanol.fr>
Date: Fri, 19 Jan 2018 19:52:42 +0100
Subject: [PATCH] remove constant warning in base62 file

---
 lib/base62.rb | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/lib/base62.rb b/lib/base62.rb
index 84f9fbf23c..bec48359aa 100644
--- a/lib/base62.rb
+++ b/lib/base62.rb
@@ -1,9 +1,9 @@
 # Modified version of: https://github.com/steventen/base62-rb
 
 module Base62
-  KEYS = "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ".freeze
-  KEYS_HASH = KEYS.each_char.with_index.inject({}) { |h, (k, v)| h[k] = v; h }
-  BASE = KEYS.length
+  KEYS ||= "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ".freeze
+  KEYS_HASH ||= KEYS.each_char.with_index.to_h
+  BASE ||= KEYS.length
 
   # Encodes base10 (decimal) number to base62 string.
   def self.encode(num)