basic_object.rb in radiant-0.7.0

- old
+ new

@@ -1,5 +1,24 @@
-# Ruby 1.9 introduces BasicObject. Use Builder's BlankSlate until then.
-unless defined? BasicObject
-  require 'blankslate'
-  BasicObject = BlankSlate
+# A base class with no predefined methods that tries to behave like Builder's
+# BlankSlate in Ruby 1.9. In Ruby pre-1.9, this is actually the
+# Builder::BlankSlate class.
+#
+# Ruby 1.9 introduces BasicObject which differs slightly from Builder's
+# BlankSlate that has been used so far. ActiveSupport::BasicObject provides a
+# barebones base class that emulates Builder::BlankSlate while still relying on
+# Ruby 1.9's BasicObject in Ruby 1.9.
+module ActiveSupport
+  if RUBY_VERSION >= '1.9'
+    class BasicObject < ::BasicObject
+      undef_method :==
+      undef_method :equal?
+
+      # Let ActiveSupport::BasicObject at least raise exceptions.
+      def raise(*args)
+        ::Object.send(:raise, *args)
+      end
+    end
+  else
+    require 'blankslate'
+    BasicObject = BlankSlate
+  end
 end