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Proceedings of the ACM on Programming Languages, Volume 4, Number HOPL,
June 14–16, 2020,
London, UK
Frontmatter
Editorial Message
The Proceedings of the ACM series presents the highest-quality research conducted in diverse
areas of computer science, as represented by the ACM Special Interest Groups (SIGs). The ACM
Proceedings of the ACM on Programming Languages (PACMPL) focuses on research on all aspects
of programming languages, from design to implementation and from mathematical formalisms
to empirical studies. The journal operates in close collaboration with the Special Interest Group
on Programming Languages (SIGPLAN) and is committed to making high-quality peer-reviewed
scientific research in programming languages free of restrictions on both access and use.
This issue of the PACMPL journal publishes 19 articles that were submitted in response to a call
for papers, as well as “letters of encouragement” sent by the program chairs to 62 specific language
designers and implementation teams, seeking contributions that discuss and analyze the historical
development of individual programming languages, programming language families, language
features, design themes, and other strong influences on the direction of programming language
design, implementation, and usage.
Articles