Design patterns for functional strategic programming
Proceedings of the 2002 ACM SIGPLAN workshop on Rule-based programming
Strategic programming meets adaptive programming
Proceedings of the 2nd international conference on Aspect-oriented software development
Software—Practice & Experience
Fusing a Transformation Language with an Open Compiler
Electronic Notes in Theoretical Computer Science (ENTCS)
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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 visitorcombinators to conduct such manipulations. Visitor combinators are an extension of the well-known visitor design pattern. They are small, reusable classes that carry out specificvisiting 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.