lib/double.rb in double-0.0.1 vs lib/double.rb in double-0.1.0

@@ -1,38 +1,76 @@
-require 'double/version'
+# Based on http://git.io/D7oevQ
+require 'forwardable'
+
+unless defined? BasicObject
+  class BasicObject
+    instance_methods.each do |mth|
+      undef_method mth unless mth =~ /__/
+    end
+  end
+end
+
+module Double
+  class Klass < BasicObject
+    extend ::Forwardable
+
+    def initialize(name)
+      @name = name
+    end
+
+    def _
+      @_ ||= ::Kernel.const_get @name
+    end
+
+    def method_missing(mth, *args, &blk)
+      if _.respond_to? mth
+        (class << self; self; end).instance_eval do
+          def_delegator :@_, mth
+        end
+        @_.send mth, *args, &blk
+      else
+        super
+      end
+    end
+  end
+
+  def const_missing(name)
+    Klass.new name
+  end
+end