Papers › Runners in action
Runners in action
Danel Ahman, Andrej Bauer
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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 λ_(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 λ_(𝖼𝗈𝗈𝗉) with examples of runners in action, provide a prototype language implementation in OCaml, as well as a Haskell library based on λ_(𝖼𝗈𝗈𝗉).
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