From: PEM moderator
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Date: Wed, 9 Oct 2002 11:25:28 +0200
Subject: PEM | 10.10.02 | M279

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   Hi,

   This week, Arie will tells us more about Program Understanding Tools.

   This announcement can be found at <http://www.cwi.nl/~pem>

       Building Program Understanding Tools Using Visitor Combinator

   Date:    10.10.02
   Time:    10:00
   Venue:   M279
   Speaker: Arie van Deursen
   Title:   Building Program Understanding Tools Using Visitor Combinator

   Program  understanding  tools manipulate program representations, such
   as  abstract  syntax  trees, control-flow graphs, or data-flow graphs.
   This paper deals with the use of \emph{visitor combinators} to conduct
   such  manipulations.  Visitor  combinators  are  an  extension  of the
   well-known  visitor  design  pattern. They are small, reusable classes
   that  carry  out  specific  visiting  steps.  They  can be composed in
   different  constellations  to build more complex visitors. We evaluate
   the    expressiveness,   reusability,   ease   of   development,   and
   applicability  of  visitor  combinators to the construction of program
   understanding  tools.  To that end, we conduct a case study in the use
   of  visitor combinators for control-flow analysis and visualization as
   used in a commercial Cobol program understanding tool.

   Note:  This is joint work with Joost Visser that has been presented at
   the 10th International Workshop on Program Comprehension (IWPC), IEEE,
   2002.

   Have a nice day.
     _________________________________________________________________

   The  programming environment meetings are a forum for the presentation
   and  discussion  of  new  ideas,  ongoing and finished work. A typical
   meeting  addresses  a subject in the area of programming environments,
   program  generation, algebraic specification, term rewriting, parsing,
   etc.  A presentation ideally takes between 45 and 90 minutes. Meetings
   taking  longer  than 45 minutes are interrupted by a coffeebreak. Most
   Thursdays,  a  meeting is held which starts at 10:00 am. in one of the
   rooms at CWI/WINS. Exceptionally, dates or times may change.

   The    program    of    the    meetings    is    available   on   WWW:
   http://www.cwi.nl/~pem
     _________________________________________________________________