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POPL 2021
Sun 17 - Fri 22 January 2021 Online
Tue 19 Jan 2021 18:00 - 18:30 at PEPM - Session 5 Chair(s): Torben Mogensen

Structure editors make syntax errors impossible, but they still allow construction of programs with incomplete semantics, leading to program states that cannot be evaluated. We introduce a structure editor calculus for a simple functional programming language that allows for incomplete programs. Our editor expressions may interleave construction and evaluation of programs and can thus describe the history of the development of a program. We extend our editor calculus with types and define a resource-aware type system that prohibits editor expressions introducing type errors in the abstract syntax tree and prove that the type system is sound.

Tue 19 Jan
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18:00 - 19:00: Session 5PEPM at PEPM
Chair(s): Torben MogensenDIKU, University of Copenhagen

Live stream: https://www.youtube.com/watch?v=VJZcAtvGOyE

18:00 - 18:30
Research paper
A Type-Safe Structure Editor Calculus
Christian GodiksenDepartment of Computer Science, Aalborg University, Thomas HerrmannDepartment of Computer Science, Aalborg University, Hans HüttelDepartment of Computer Science, Aalborg University, Mikkel Korup LauridsenDepartment of Computer Science, Aalborg University, Iman OwliaieDepartment of Computer Science, Aalborg University
Media Attached
18:30 - 19:00
Research paper
Strictly Capturing Non-Strict Closures
Zachary SullivanUniversity of Oregon, Paul DownenUniversity of Oregon, USA, Zena M. AriolaUniversity of Oregon, USA
Media Attached