From: Kent Sibilev <ksruby@...>
Date: 2005-07-20T02:31:04+09:00
Subject: Re: Removing Instance Methods

Yeah, you're right. I should have tested it first before posting :)

Kent.

On 7/19/05, ts <decoux@moulon.inra.fr> wrote:
> >>>>> "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
> 
>