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arXiv · 1910.11629

Runners in action

Danel Ahman·Andrej Bauer
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Abstract

Runners of algebraic effects, also known as comodels, provide a mathematical model of resource management. We show that they also give rise to a programming concept that models top-level external resources, as well as allows programmers to modularly define their own intermediate "virtual machines". We capture the core ideas of programming with runners in an equational calculus $\lambda_{\mathsf{coop}}$, which we equip with a sound and coherent denotational semantics that guarantees the linear use of resources and execution of finalisation code. We accompany $\lambda_{\mathsf{coop}}$ with examples of runners in action, provide a prototype language implementation in OCaml, as well as a Haskell library based on $\lambda_{\mathsf{coop}}$.

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BibTeXRIS

Danel Ahman, Andrej Bauer. 2019-10-25. Runners in action. https://doi.org/10.1007/978-3-030-44914-8_2

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