RE: RE: [abc-users] Using abc for instrumentation

Hi Eric,

Thank you for your reply and hints.

By following your papers, tutorials and EAJ code, I've
managed to insert a new pass into abc and rewrite some
AST nodes to inject instrumentation code. I'm now
injecting the code by inserting AST nodes, which are
constructed by hard coding. I was wondering, by any
chance, if we can insert code with plain text like
"System.out.println ("hello");" instead of its
corresponding AST nodes? or if there is an easy way to
convert/parse a statement into its AST representation?
Guess not...It sounds unreasonable to me.

Well, another workaround to the tediousness of
constructing AST nodes for inserted statements is
rewriting source files while instrumenting. Can you
please advice me of if and how we can instruct abc to
start over the compilation process from my extension?

Thank you very for your help!

Young

--- Eric Bodden <eric.bodden@mail.mcgill.ca> wrote:

> Hello and sorry for the late reply. I had trouble
> with my email setup
> (don't try the Outlook 2007 beta in combination with
> PGP - it does not
> work :-/ ...). You find my answer below.
>
> Eric
>
> > -----Original Message-----
> > From:
> > Sent: Wednesday, May 24, 2006 4:57 PM
> > To: 'Young G'
> > Cc: abc-users@comlab.ox.ac.uk
> > Subject: RE: RE: [abc-users] Using abc for
> instrumentation
> >
> > Hello.
> >
> > > The instrumentation in my project will be
> applied to source code.
> I'm
> > > wondering if you could please point me to some
> documentations for
> > > traversing and rewriting AST? I'm studying
> materials provided by
> > > aspectbench.org website. Your advice will surely
> shorten my learning
> > > period.
> >
> > I can only advise you to have a look at our
> journal paper (on the
> > website). This explains the "EAJ" extension. AST
> rewriting is used for
> > instance to implement the "global pointcut"
> extension there. The code
> > for this is also included in the abc download.
> This should give you a
> > good entry point.
> >
> > Eric
>
>

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Received on Mon May 29 01:54:02 2006