From: Todd Burch <promos@...>
Date: 2009-01-26T04:55:42+09:00
Subject: Re: unalias a method?

Mike Gold wrote:
> 
> class Foo
>   def hello
>     p "hi"
>   end
>   alias_method :hello2, :hello
> end
> 
> Foo.new.hello2  #=> "hi"
> class Foo
>   remove_method :hello2
> end
> Foo.new.hello2  #=> undefined method `hello2'

Thanks Mike.  Perhaps that's what I said, but that's not what I meant... 
;)   Sorry about that.   I tried recreating my scenario with 
alias_method, and it seems as if it wasn't really a factor in my test.

This is the sequence that I would like to happen:

module Foo
  def Foo.hello
    p "Hi"
  end
end  # module

####################

p "I expect to print hi:"
Foo.hello                 #<== this works

####################

module Foo
  def Foo.hello
    p "printing of hi is suppressed"
  end
end

####################

p "I expect to suppress printing of hi:"
Foo.hello               # <== this works

####################

p "Now, I want to print hi again:"

###??? What needs to happen here?

Foo.hello


I'm assuming that alias_method is what I need to be using to temporarily 
"redirect" all my Foo.hello calls to do something different for a 
certain period of time, and finally I want to revert to the original 
behavior of Foo.hello.

I used a module example, because that's what I'm using my real case, and 
I don't have access to the module source.

Thanks, Todd
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