From: Robert Klemme <bob.news@...>
Date: 2004-10-21T16:54:18+09:00
Subject: Re: Idiom -- is there a better way?


"Mark Probert" <probertm@nospam-acm.org> schrieb im Newsbeitrag
news:Xns9588647C9B7C4probertmnospamacmorg@198.161.157.145...
>
> Hi ..
>
> I am doing indirect dispatch, something like:
>
>   class Foo
>     def bar(fn)
>       eval "self.#{fn}"
>     end
>   end
>
>   class Bar < Foo
>     def blah
>       puts "blah here"
>     end
>   end
>
>   f = Bar.new
>   f.bar("blah")
>
> It works however I am sure there must be a nicer way of doing the
bar(fn)
> stuff.  Any ideas?
>
> TIA,
> -mark.

There's no need for method bar because that is built into Ruby alread:
Object#send does the job:

class Bar
  def blah
    puts "blah here"
  end
end


>> Bar.new.send :blah
blah here
=> nil
>> Bar.new.send "blah"
blah here
=> nil
>>

Kind regards

    robert