From: Alex Gutteridge <alexg@...>
Date: 2013-02-28T21:46:48+09:00
Subject: Re: Discussion on Ruby's `alias`

On 28.02.2013 12:34, Tukai Patra wrote:
>>> class Foo
>>> def show
>>> p "hi"
>>> end
>>> end
> => nil
>>> class Foo
>>> alias :old_show :show
>>> def show
>>> p "hi! I am there."
>>> old_show
>>> end
>>> end
> => nil
>>> foo = Foo.new
> => #<Foo:0x117bca0>
>>> foo.show
> "hi! I am there."
> "hi"
> => "hi"
>>>
>
> The above code is very fine. But looking for if possible to call that
> `old_show` method by the object of `Foo` from `IRB main` as we called
> `foo.show`? - Is this possible?

Uh, yes you just call it, unless I totally misunderstand your question?

class Foo
   def bar
     puts "bar"
   end
end
     ==>nil
class Foo
   alias :baz :bar
   def bar
     puts "baz"
     baz
   end
end
     ==>nil

foo = Foo.new
     ==>#<Foo:0x10bc11040>
foo.bar
baz
bar
     ==>nil
foo.baz
bar
     ==>nil

-- 
Alex Gutteridge