RE: [aspectj-dev] how hard it is to introduce a new kind of pointcut ina

[lingli zhang <lingli_z@xxxxxxxxx>]

Hi,

Thank you for all the replies. The walk through in the
document is a little bit out-of-date. But it was a big
help for the beginners like me. With several changes
to the steps, I was able to add the "throw" pointcut!
:)

About the LoopAJ, I did know about this project.
However, we want better IDE support like Eclipse with
more source location information and UI features.
That's why we choose aspjectj instead of abc although
I know abc is much more extensible than aspectj.

My next quesion is it is possible to express and
implement some pointcuts to match a code line like:

if (DEBUG == true) {
}

It seems no direct bytecode matching for this kind of
statement. Do you think it's feasible by extending
aspectj somehow? Any suggestions?

Thanks a lot!
Lingli
 
 

--- Eric Bodden <eric@xxxxxxxxx> wrote:

> Hi.
> 
> Generally it's not that hard using the AspectBench
> compiler, Wes mentioned
> already (given you have some basic knowledge about
> compiler construction). 
> However, with respect to loops, such an extension
> already exists in the form
> of "LoopsAJ" -
>
http://www.cs.manchester.ac.uk/cnc/projects/loopsaj/.
> This
> actually *is* an extension to the AspectBench
> Compiler.
> 
> However, I am not sure what you mean by "the 'new'
> bytecode". Is that not
> something that can be captured by
> call(WhatEverType.new(..)) ?
> 
> Eric
> 
> 
> lingli zhang wrote:
> > Hi,
> > 
> > I am newbie of aspectj. I am wondering how hard it
> is to introduce a
> > new kind of pointcut into the current aspectj
> project. For example,
> > if I want to match the "new" bytecode, or if I
> want to match some
> > sort of loop structures, I need to introduce
> "new()" or "loop()" to
> > the syntax of the pointcut. Is there any grammar
> file I should
> > change, where is the scanner and parser files? Can
> anyone point me to
> > some example or a starting point to do it?      
> > 
> > Thanks a lot!
> > Lingli
> > 
> > 
> 
> -- 
> Eric Bodden
> Chair I2 for Programming Languages and Program
> Analysis
> RWTH Aachen University
> 
> 
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