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arXiv · 2205.00680

Typed Non-determinism in Functional and Concurrent Calculi

Bas van den Heuvel·Joseph W. N. Paulus·Daniele Nantes-Sobrinho·Jorge A. Pérez
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Abstract

We study functional and concurrent calculi with non-determinism, along with type systems to control resources based on linearity. The interplay between non-determinism and linearity is delicate: careless handling of branches can discard resources meant to be used exactly once. Here we go beyond prior work by considering non-determinism in its standard sense: once a branch is selected, the rest are discarded. Our technical contributions are three-fold. First, we introduce a $\pi$-calculus with non-deterministic choice, governed by session types. Second, we introduce a resource $\lambda$-calculus, governed by intersection types, in which non-determinism concerns fetching of resources from bags. Finally, we connect our two typed non-deterministic calculi via a correct translation.

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Bas van den Heuvel, Joseph W. N. Paulus, Daniele Nantes-Sobrinho, Jorge A. Pérez. 2022-05-02. Typed Non-determinism in Functional and Concurrent Calculi. https://arxiv.org/abs/2205.00680

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