Mutable WadlerFest DOT
The Dependent Object Types (DOT) calculus aims to model the essence of Scala, with a focus on abstract type members, path-dependent types, and subtyping. Other Scala features could be defined by translation to DOT.
Mutation is a fundamental feature of Scala currently missing in DOT. Mutation in DOT is needed not only to model effectful computation and mutation in Scala programs, but even to precisely specify how Scala initializes immutable variables and fields (\textsf{val}s).
We present an extension to DOT that adds typed mutable reference cells. We have proven the extension sound with a mechanized proof in Coq. We present the key features of our extended calculus and its soundness proof, and discuss the challenges that we encountered in our search for a sound design and the alternative solutions that we considered.
Tue 20 JunDisplayed time zone: Amsterdam, Berlin, Bern, Rome, Stockholm, Vienna change
14:00 - 15:30 | |||
14:00 20mTalk | Generic Approach to Certified Static Checking of Module-like Constructs FTfJP Julia Belyakova Southern Federal University Pre-print | ||
14:20 35mTalk | Tracing sharing in an imperative pure calculus FTfJP Paola Giannini Universita' del Piemonte Orientale, Marco Servetto Victoria University of Wellington, Elena Zucca University of Genova | ||
14:55 35mTalk | Mutable WadlerFest DOT FTfJP |