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A Form-based Framework for Class Extensions


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Lumpe, Markus (2005) A Form-based Framework for Class Extensions. Technical Report 05-08, Department of Computer Science, Iowa State University.

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Abstract

Class extensions allow for a modular addition of new behavior to an existing class hierarchy. However, the reliance on position-dependent parameters in mainstream programming languages has often a negative impact on the way new behavior can be specified. This observation has led us to explore the concept of forms, which are first-class extensible records that, in combination with a small set of purely asymmetric operators, provide a core language for an extensible, flexible, and robust software development approach. In this paper, we present a refinement of our recent work on a substitution-free lambda calculus with forms. More precisely, we develop the λF@-calculus in which names are replaced with shared forms and parameter passing is modeled using explicit contexts and show, how this calculus can be used to model open classes, a key mechanism for class extensions.

Subjects:Software: PROGRAMMING TECHNIQUES (E): Object-oriented Programming
Software: PROGRAMMING LANGUAGES: Formal Definitions and Theory (D.2.1, F.3.1-2, F.4.2-3)
ID code:00000365
Deposited by:Markus Lumpe on 05 April 2005



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