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arXiv · 2404.05479

Behavioural Types for Heterogeneous Systems (Position Paper)

Simon Fowler·Philipp Haller·Roland Kuhn·Sam Lindley·Alceste Scalas·Vasco T. Vasconcelos
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Abstract

Behavioural types provide a promising way to achieve lightweight, language-integrated verification for communication-centric software. However, a large barrier to the adoption of behavioural types is that the current state of the art expects software to be written using the same tools and typing discipline throughout a system, and has little support for components over which a developer has no control. This position paper describes the outcomes of a working group discussion at Dagstuhl Seminar 24051 (Next-Generation Protocols for Heterogeneous Systems). We propose a methodology for integrating multiple behaviourally-typed components, written in different languages. Our proposed approach involves an extensible protocol description language, a session IR that can describe data transformations and boundary monitoring and which can be compiled into program-specific session proxies, and finally a session middleware to aid session establishment. We hope that this position paper will stimulate discussion on one of the most pressing challenges facing the widespread adoption of behavioural typing.

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Simon Fowler, Philipp Haller, Roland Kuhn, Sam Lindley, Alceste Scalas, Vasco T. Vasconcelos. 2024-04-08. Behavioural Types for Heterogeneous Systems (Position Paper). https://doi.org/10.4204/eptcs.401.4

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