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Sun 20 - Fri 25 October 2019 Athens, Greece
Thu 24 Oct 2019 14:45 - 15:07 at Attica - Corpus Studies

The R programming language has been lazy for over twenty five years. This paper presents a review of the design and implementation of call-by-need in R, and a data-driven study of how generations of programmers have put laziness to use in their code. We analyze 16,707 libraries and observe the creation of 270.9 B promises. Our data suggests that there is little supporting evidence to assert that programmers use laziness to avoid unnecessary computation or to operate over infinite data structures. For the most part R code appears to have been written without reliance on, and in many cases even knowledge of, delayed argument evaluation. The only significant exception is a small number of packages and core libraries which leverage call-by-need for meta-programming.

This program is tentative and subject to change.

Thu 24 Oct

14:00 - 15:30: OOPSLA - Corpus Studies at Attica
splash-2019-oopsla14:00 - 14:22
Emery BergerUniversity of Massachusetts Amherst, Celeste HollenbeckNortheastern Univeristy, Petr MajCzech Technical University, Olga VitekNortheastern University, Jan VitekNortheastern University
splash-2019-oopsla14:22 - 14:45
Luis MastrangeloUniversità della Svizzera italiana, Matthias HauswirthUniversità della Svizzera italiana, Nate NystromUniversità della Svizzera italiana
splash-2019-oopsla14:45 - 15:07
Aviral GoelNortheastern University, Jan VitekNortheastern University
splash-2019-oopsla15:07 - 15:30
Sifei LuanFacebook, Inc., Di YangUniversity of California, Irvine, Celeste BarnabyFacebook, Inc., Koushik SenUniversity of California, Berkeley, Satish ChandraFacebook