From: Robert Klemme <bob.news@...>
Date: 2003-06-11T19:31:00+09:00
Subject: Re: Stack Frames, Functions and Variables.

The Wiki link is
http://www.rubygarden.org/ruby?MethodHooks

    robert

"Robert Klemme" <bob.news@gmx.net> schrieb im Newsbeitrag news:...
>
>
> I hacked something together that provides for hooking of methods.  Look
> for a thread called "How I'd like method-wrapping to work...".  I can
send
> it to you directly if you want to.
>
> I'll put it on the wiki as soon as I can access it again.
>
>     robert
>
>
> "Grzegorz Dostatni" <grzegorz@ee.ualberta.ca> schrieb im Newsbeitrag
> news:Pine.LNX.4.44.0306101627070.3875-100000@e5-05.ee.ualberta.ca...
> >
> > I have a number of questions:
> >
> > 1. Is it possible to examine current stack frame in ruby. Or move up
in
> > the stack frame to find the local variables of the function that
called
> > you?
> >
> > 2. Can I put a hook that gets called whenever anyone or anything
> accesses
> > a function AND/OR a variable within an object? I would like to
intercept
> > that call to create a nice wrapper.
> >
> > 3. This should be a really easy question to answer:
> >
> >    Class Foo
> > @test = "Hello World"
> >    end
> >
> >    Class Bar
> > @test = Foo.new
> >
> > def bar
> > puts @test.@test (???)
> > end
> >    end
> >
> > How do I access a local variable of an object pointed to as local
> > variable. Is is a scoping problem? Are they just not visible? Should I
> > make them public? Should I stand on a crossroads at midnight swinging
a
> > black cat in a circle thirteen times?
> >
> > Please help.
> >
> > Greg
> >
> > "Many a man may look respectable, and yet be able to hide at will
behind
> a
> > spiral staircase."
> > - Pelham (Plum) Grenville  Wodehouse
> >
> >
>