Annette is a professor of Software Technology at the University of Kaiserslautern-Landau. Her research interests include the semantics of concurrent and distributed programming, with a focus on replication, synchronization, and how they are reflected on a programming language level. She is passionate about CRDTs, verification, and engaging students with the BEAM.
Erlang’s type language provides powerful such as parametric polymorphism, equi-recursive types, as well as singleton, union, and (a variant of) intersection types. But its type signatures mainly serve as documentation as language features such as pattern matching and dynamic type tests complicate the design of a static type system.
In our talk, we present etylizer, a static type checker for Erlang that adopts set-theoretic types as its foundation. With a demo on selected case studies, we will demonstrate how existing Erlang code can be statically typechecked without or with only minor modifications to the code. We will further show how set-theoretic types can enhance the development process and improve code quality for idiomatic Erlang code. The etylizer project is funded by the Erlang Ecosystem Foundation and developed as free open-source software <a href=https://github.com/etylizer>here</a>.
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