George Moschovitis wrote:

> Is it possible to write 'inject_method' in Ruby ?

Apart from the ways that were already mentioned you can also do this:

obj = Class.new { def bar() puts "foo" }.new

class Foo
   define_method(:bar, &obj.method(:bar))
end

But note that this is the same as doing this:

class Foo
   define_method(:bar) { obj.method(:bar).call }
end

I've posted in this thread already that EvilRuby is less restrictive 
with Method#force_bind, but I don't think that this is needed in your 
case. (It could however be useful to implement AOP-like stuff.)