Expressive pointcuts for increased modularity

  • Authors:

  • Klaus Ostermann;Mira Mezini;Christoph Bockisch

  • Affiliations:

  • Darmstadt University of Technology, Darmstadt, Germany;Darmstadt University of Technology, Darmstadt, Germany;Darmstadt University of Technology, Darmstadt, Germany

  • Venue:
  • ECOOP'05 Proceedings of the 19th European conference on Object-Oriented Programming
  • Year:
  • 2005

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Abstract

In aspect-oriented programming, pointcuts are used to describe crosscutting structure. Pointcuts that abstract over irrelevant implementation details are clearly desired to better support maintainability and modular reasoning. We present an analysis which shows that current pointcut languages support localization of crosscutting concerns but are problematic with respect to information hiding. To cope with the problem, we present a pointcut language that exploits information from different models of program semantics, such as the execution trace, the syntax tree, the heap, static type system, etc., and supports abstraction mechanisms analogous to functional abstraction. We show how this raises the abstraction level and modularity of pointcuts and present first steps toward an efficient implementation by means of a static analysis technique.