Full textReport2003UrhG

A structural operational semantics of a concurrent class calculus

The concurrent $\nu$-calculus has been investigated as a core calculus for imperative, object-oriented languages with multithreading and heap-allocated objects. From an abstract point of view, the combination of this form of concurrency with objects corresponds to features known from the popular language Java. One distinctive feature, however, of the concurrent object calculus is that it is \emph{object-based}, where as the mainstream of object-oriented languages is \emph{class-based.} This technical report extends the concurrent $\nu$-calculus by introducing classes and explores some of the semantical consequences. The semantics will serve asthe basis for a proof of full abstraction wrt.\ to a may-testing based notion of observability.

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