From: ts <decoux@...>
Date: 2005-07-20T02:14:49+09:00
Subject: Re: Removing Instance Methods

>>>>> "B" == Brian Takita <brian.takita@gmail.com> writes:

B> def custom_remove_method(obj, sym)
B> 	obj.instance_variable_set(:@symbol_to_be_removed, obj)
B> 	class << obj
B> 		remove_method(@symbol_to_be_removed)
B> 		remove_instance_variable(:@symbol_to_be_removed)
B> 	end
B> end

moulon% cat b.rb
#!/usr/bin/ruby
def custom_remove_method(obj, sym)
   class << obj; self end.send(:remove_method, sym)
end
class << a = []
   def un
      puts 1
   end
end
a.un
custom_remove_method(a, :un)
a.un
moulon% 

moulon% ./b.rb
1
./b.rb:12: undefined method `un' for []:Array (NoMethodError)
moulon% 



Guy Decoux