lib/ruby_units/cache.rb in ruby-units-2.0.1 vs lib/ruby_units/cache.rb in ruby-units-2.1.0

@@ -1,20 +1,21 @@
-class RubyUnits::Unit < Numeric
-  @@cached_units = {}
-  
-  class Cache
-    def self.get(key = nil)
-      key.nil? ? @@cached_units : @@cached_units[key]
-    end
-  
-    def self.set(key, value)
-      @@cached_units[key] = value
-    end
+module RubyUnits
+  class Unit < Numeric
+    @@cached_units = {}
 
-    def self.clear
-      @@cached_units = {}
-      @@base_unit_cache = {}
-      Unit.new(1)
+    class Cache
+      def self.get(key = nil)
+        key.nil? ? @@cached_units : @@cached_units[key]
+      end
+
+      def self.set(key, value)
+        @@cached_units[key] = value
+      end
+
+      def self.clear
+        @@cached_units = {}
+        @@base_unit_cache = {}
+        Unit.new(1)
+      end
     end
-    
   end
 end