rkh · May 17, 2012 16:31 · May 17, 2012 · May 17, 2012
diff --git a/hack.rb b/hack.rb
@@ -14,11 +14,20 @@ def call
   end
 end
 
+module Prepending
+  def append_features(base)
+    return super unless base.is_a? Class
+    prepend = self
+    base.extend Module.new { define_method(:new) { |*| super.extend(prepend) }}
+  end
+end
+
 p Base.new.call  #=> "monkeypatched"
 
 # This is the spirit of what I'd like, but methods defined on the class will be
 # preferred over those in ancestors.
 module Override
+  extend Prepending
   def call
     [ 'overridden', super ]
   end
@@ -28,7 +37,7 @@ class Base
   include Override
 end
 
-p Base.new.call  #=> "monkeypatched"
+p Base.new.call  #=> ["overridden", "monkeypatched"]
 
 
 
@@ -39,4 +48,4 @@ def call
     [ 'overridden', super ]
   end
 end
-p instance.call  #=> ["overridden", "monkeypatched"]
+p instance.call  #=> ["overridden", ["overridden", "monkeypatched"]]
diff --git a/hack.rb b/hack.rb
@@ -0,0 +1,42 @@
+class Base
+  def call
+    'call'
+  end
+end
+
+p Base.new.call  #=> "call"
+
+
+# Monkeypatching "works" but doesn't provide access to #super
+class Base
+  def call
+    'monkeypatched'
+  end
+end
+
+p Base.new.call  #=> "monkeypatched"
+
+# This is the spirit of what I'd like, but methods defined on the class will be
+# preferred over those in ancestors.
+module Override
+  def call
+    [ 'overridden', super ]
+  end
+end
+
+class Base
+  include Override
+end
+
+p Base.new.call  #=> "monkeypatched"
+
+
+
+# This works but I don't have access to the class instances to apply this method.
+instance = Base.new
+class << instance
+  def call
+    [ 'overridden', super ]
+  end
+end
+p instance.call  #=> ["overridden", "monkeypatched"]
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