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Erschienen in:
2007 | OriginalPaper | Buchkapitel
Unifying Theories of Objects
verfasst von : Michael Anthony Smith, Jeremy Gibbons
Erschienen in: Integrated Formal Methods
Verlag: Springer Berlin Heidelberg
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We present an approach to modelling Abadi-Cardelli-style object calculi as Unifying Theories of Programming (UTP) designs. Here we provide a core object calculus with an operational
small-step evaluation rule
semantics, and a corresponding UTP model with a denotational
relational predicate
semantics. For clarity, the UTP model is defined in terms of an operand stack, which is used to store the results of subprograms. Models of a less operational nature are briefly discussed. The consistency of the UTP model is demonstrated by a structural induction proof over the operations of the core object calculus. Overall, our UTP model is intended to provide facilities for encoding both object-based and class-based languages.