Freeze encoding maps

trilogy-libraries · Apr 5, 2023 · c98af25 · c98af25
1 parent 960aa62
commit c98af25
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/contrib/ruby/lib/trilogy.rb b/contrib/ruby/lib/trilogy.rb
@@ -1,3 +1,5 @@
+# frozen_string_literal: true
+
 require "trilogy/version"
 
 class Trilogy
@@ -149,7 +151,7 @@ class ConnectionClosed < IOError
     "eucjpms"  => "eucJP-ms",
     "utf16le"  => "UTF-16LE",
     "gb18030"  => "GB18030",
-  }
+  }.freeze
 
   def initialize(options = {})
     mysql_encoding = options[:encoding] || "utf8mb4"
@@ -228,7 +230,7 @@ def each(&bk)
 
   def charset_for_mysql_encoding(mysql_encoding)
     @mysql_encodings_map ||= {
-      "big5" => CHARSET_BIG5_CHINESE_CI,
+      "big5"     => CHARSET_BIG5_CHINESE_CI,
       "cp850"    => CHARSET_CP850_GENERAL_CI,
       "koi8r"    => CHARSET_KOI8R_GENERAL_CI,
       "latin1"   => CHARSET_LATIN1_GENERAL_CI,
@@ -263,7 +265,7 @@ def charset_for_mysql_encoding(mysql_encoding)
       "cp1257"   => CHARSET_CP1257_GENERAL_CI,
       "utf32"    => CHARSET_UTF32_GENERAL_CI,
       "binary"   => CHARSET_BINARY,
-    }
+    }.freeze
     @mysql_encodings_map[mysql_encoding]
   end
 end