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An abstract machine for concurrent haskell with futures
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Datum
2012
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Gesellschaft für Informatik e.V.
Zusammenfassung
We show how Sestoft's abstract machine for lazy evaluation of purely functional programs can be extended to evaluate expressions of the calculus CHF – a process calculus that models Concurrent Haskell extended by imperative and implicit futures. The abstract machine is modularly constructed by first adding monadic IO-actions to the machine and then in a second step we add concurrency. Our main result is that the abstract machine coincides with the original operational semantics of CHF, w.r.t. mayand should-convergence.