Row types for delta-oriented programming

  • Authors:
  • Michael Lienhardt;Dave Clarke

  • Affiliations:
  • University of Bologna, Italy;Katholieke Universiteit Leuven, Belgium

  • Venue:
  • Proceedings of the Sixth International Workshop on Variability Modeling of Software-Intensive Systems
  • Year:
  • 2012

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Abstract

Delta-oriented programming (DOP) provides a technique for implementing Software Product Lines based on modifications (add, remove, modify) to a core program. Unfortunately, such modifications can introduce errors into a program, especially when type signatures of classes are modified in a non-monotonic fashion. To deal with this problem we present a type system for delta-oriented programs based on row polymorphism. This exercise elucidates the close correspondence between delta-oriented programs and row polymorphism.