Merge branch 'feature/remove-core-exts'

lib/dm-sweatshop/support/class_attributes.rb

@@ -0,0 +1,46 @@
+module DataMapper
+  class Sweatshop
+    module ClassAttributes
+      def self.reader(klass, *attributes)
+        attributes.each do |attribute|
+          klass.class_eval(<<-RUBY, __FILE__, __LINE__ + 1)
+            unless defined? @@#{attribute}
+              @@#{attribute} = nil
+            end
+
+            def self.#{attribute}
+              @@#{attribute}
+            end
+
+            def #{attribute}
+              @@#{attribute}
+            end
+          RUBY
+        end
+      end
+
+      def self.writer(klass, *attributes)
+        attributes.each do |attribute|
+          klass.class_eval(<<-RUBY, __FILE__, __LINE__ + 1)
+            unless defined? @@#{attribute}
+              @@#{attribute} = nil
+            end
+
+            def self.#{attribute}=(obj)
+              @@#{attribute} = obj
+            end
+
+            def #{attribute}=(obj)
+              @@#{attribute} = obj
+            end
+          RUBY
+        end
+      end
+
+      def self.accessor(klass, *attributes)
+        self.reader(klass, *attributes)
+        self.writer(klass, *attributes)
+      end
+    end
+  end
+end

lib/dm-sweatshop/unique.rb

@@ -1,8 +1,4 @@
-begin
-  require 'active_support/core_ext/class/attribute_accessors'
-rescue LoadError
-  require 'extlib/class'
-end
+require 'dm-sweatshop/support/class_attributes'
 
 module DataMapper
   class Sweatshop
@@ -69,9 +65,9 @@ class UniqueWorker
         puts "DataMapper::Sweatshop::Unique - ParseTree could not be loaded, anonymous uniques will not be allowed"
       end
 
-      cattr_accessor :count_map
-      cattr_accessor :unique_map
-      cattr_accessor :parser
+      ClassAttributes.accessor(self, :count_map)
+      ClassAttributes.accessor(self, :unique_map)
+      ClassAttributes.accessor(self, :parser)
 
       # Use the sexp representation of the block as a unique key for the block
       # If you copy and paste a block, it will still have the same key