1 files changed, 25 insertions, 0 deletions
diff --git a/lib/arel/nodes/unary_operation.rb b/lib/arel/nodes/unary_operation.rb
new file mode 100644
index 0000000000..1636c01279
--- /dev/null
+++ b/lib/arel/nodes/unary_operation.rb
@@ -0,0 +1,25 @@
+module Arel
+  module Nodes
+
+    class UnaryOperation < Unary
+      include Arel::Expressions
+      include Arel::Predications
+      include Arel::OrderPredications
+      include Arel::AliasPredication
+      include Arel::Math
+
+      attr_reader :operator
+
+      def initialize operator, operand
+        super(operand)
+        @operator = operator
+      end
+    end
+
+    class BitwiseNot < UnaryOperation
+      def initialize operand
+        super(:~, operand)
+      end
+    end
+  end
+end
+\ No newline at end of file