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arXiv · 2506.12212

Freer Arrows and Why You Need Them in Haskell

Grant VanDomelen·Gan Shen·Lindsey Kuper·Yao Li
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Abstract

Freer monads are a useful structure commonly used in various domains due to their expressiveness. However, a known issue with freer monads is that they are not amenable to static analysis. This paper explores freer arrows, a relatively expressive structure that is amenable to static analysis. We propose several variants of freer arrows. We conduct a case study on choreographic programming to demonstrate the usefulness of freer arrows in Haskell.

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Grant VanDomelen, Gan Shen, Lindsey Kuper, Yao Li. 2025-06-13. Freer Arrows and Why You Need Them in Haskell. https://arxiv.org/abs/2506.12212

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