From: Meinrad Recheis <meinrad.recheis@...>
Date: 2006-03-07T19:02:56+09:00
Subject: Re: best praxis to wrap methods?

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On 3/7/06, Robert Klemme <bob.news@gmx.net> wrote:
>
> Meinrad Recheis wrote:
> [snipped]
>
> Are you sure the code you presented actually works?  IMHO your code will
> fail if the method is defined in the same class (i.e. no "super"
> possible).


afaik calling super in a singleton method calls the overridden method of
that object (of course i assert that the method to be wrapped exists).
here is the working code snippet:
def make_wrapper object, method
        object.instance_eval %{
            def self.#{method}(*args, &block)
                puts "wrapped method #{method}"
                super
            end
        }
end

You could use Delegator for this.  And, if the method you want to wrap
> does not use a block define_method usually works quite well.


ah, object.send( :define_method) is what i was looking for. thanks

Kind regards
>
>     robert
>
>
>

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