Object-oriented tree traversal with JJForester

We want to use the advanced language processing technology available in the {sc Asf+Sdf in combination with general purpose programming languages. In particular, we want to combine the syntax definition formalism {sc Sdf and the associated components that support generalized LR parsing, with the object-oriented language Java. To this end, we implemented JJForester, a tool that generates class structures from{sc Sdf grammar definitions. The generated class structures implement a number of emph{design patterns to facilitate construction and traversal of parse trees represented by object structures. In a detailed case study, we demonstrate how program analyses and transformations can be constructed with JJForester.