From: Peter <Peter.Vanbroekhoven@...>
Date: 2003-11-28T02:35:40+09:00
Subject: Re: Method wrapping

> You realize that you on are speculative grounds claiming that
> these circumstances will be rare enough. One of the more common
> method redefining circumstances  are probably (this base on other
> evidence but my gut feeling:-) are of the form
>
> def meth(a,b,c,new_parm = some_default_value)
> 	....
> end

def meth:wrap(a,b,*args)
  do_something(a, b)
  super
end

This WORKS for constructors. Really. And they are a kind of wrappers as
Tom pointed out. Unless you'd give b a default value too...

> Even if this were to happen rarely, redefining the primary method
> in an arity altering way would render the class unusable if the
> hooks weren't removed.  Being forced to use reflection features to
> remove the hooks is NOT suitable for beginners and I wouldn't want
> to be bothered (perhaps because I never grew nor ever will grow out
> of beginner-tum:-)  with this either.

There you've got a point. But removing the wrappers could also break other
code, no? Unless you only put code in those wrappers that are not needed
for correct execution...

Peter