Position Paper: Goals of the Luau Type System (HATRA 2021 - Human Aspects of Types and Reasoning Assistants)

Sun 17 - Fri 22 October 2021 Chicago, Illinois, United States

Who

Lily Brown, Andy Friesen, Alan Jeffrey

Track

HATRA 2021

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When

Tue 19 Oct 2021 11:20 - 11:35 at Zurich E - Type Systems Chair(s): Chris Martens

Abstract

Luau is the scripting language that powers user-generated experiences on the Roblox platform. It is a statically-typed language, based on the dynamically-typed Lua language, with type inference. These types are used for providing editor assistance in Roblox Studio, the IDE for authoring Roblox experiences. Due to Roblox’s uniquely heterogeneous developer community, Luau must operate in a somewhat different fashion than a traditional statically-typed language. In this paper, we describe some of the goals of the Luau type system, focusing on where the goals differ from those of other type systems.

Link to Publication

https://arxiv.org/abs/2109.11397

Lily Brown

Roblox

Andy Friesen

Roblox

Alan Jeffrey

Roblox

United States

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Session Program

Tue 19 Oct
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10:50 - 12:10	Type SystemsHATRA at Zurich E Chair(s): Chris Martens North Carolina State University

10:50 15m Talk		Human Aspects of SASyLF, an Educational Proof Assistant for Type Theory HATRA Jonathan Aldrich Carnegie Mellon University Pre-print
11:05 15m Talk		An Empirical Study of Protocols in Smart Contracts HATRA Timothy Mou Swarthmore College, Michael Coblenz University of Maryland at College Park, Jonathan Aldrich Carnegie Mellon University Link to publication
11:20 15m Talk		Position Paper: Goals of the Luau Type System HATRA Lily Brown Roblox, Andy Friesen Roblox, Alan Jeffrey Roblox Link to publication
11:35 15m Talk		User-driven design and evaluation of Liquid Types in Java HATRA Catarina Gamboa LASIGE, Faculdade de Ciências da Universidade de Lisboa, Paulo Canelas LASIGE, Faculdade de Ciências da Universidade de Lisboa, Christopher Steven Timperley Carnegie Mellon University, Alcides Fonseca LASIGE, Faculdade de Ciências da Universidade de Lisboa Pre-print
11:50 20m Meeting		Paper discussion, session 1 HATRA