SPLASH 2020
Sun 15 - Sat 21 November 2020 Online Conference
Tue 17 Nov 2020 17:40 - 18:00 at SPLASH-III - T-6B Chair(s): Todd Millstein, Manu Sridharan
Wed 18 Nov 2020 05:40 - 06:00 at SPLASH-III - T-6B Chair(s): Sorav Bansal, Olivier Fl├╝ckiger

Dynamic programming languages face semantic and performance challenges in
the presence of features, such as eval, that can inject new code into a
running program. The Julia programming language introduces the novel
concept of world age to insulate optimized code from one of the most
disruptive side-effects of eval: changes to the
definition of an existing function. This paper provides the first formal
semantics of world age in a core calculus named juliette, and shows how
world age enables compiler optimizations, such as inlining, in the presence
of eval. While Julia also provides programmers with the means to bypass
world age, we found that this mechanism is not used extensively: a static
analysis of over 4,000 registered Julia packages shows that only
4-9% of packages bypass world age.
This suggests that Julia's semantics aligns with programmer expectations.

Tue 17 Nov

Displayed time zone: Central Time (US & Canada) change

17:00 - 18:20
T-6BOOPSLA at SPLASH-III +12h
Chair(s): Todd Millstein University of California at Los Angeles, Manu Sridharan University of California at Riverside
17:00
20m
Talk
DynamiTe: Dynamic Termination and Non-termination Proofs
OOPSLA
Ton Chanh Le Stevens Institute of Technology, Timos Antonopoulos Yale University, Parisa Fathololumi Stevens Institute of Technology, Eric Koskinen Stevens Institute of Technology, ThanhVu Nguyen University of Nebraska-Lincoln
Link to publication DOI Media Attached
17:20
20m
Talk
Programming and Reasoning with Partial Observability
OOPSLA
Eric Atkinson Massachusetts Institute of Technology, Michael Carbin Massachusetts Institute of Technology
Link to publication DOI Media Attached
17:40
20m
Talk
World Age in Julia: Optimizing Method Dispatch in the Presence of Eval
OOPSLA
Julia Belyakova Northeastern University, Benjamin Chung Northeastern University, Jack Gelinas Northeastern University, Jameson Nash Julia Computing, Ross Tate Cornell University, Jan Vitek Northeastern University / Czech Technical University
Link to publication DOI Media Attached
18:00
20m
Talk
Featherweight Go
OOPSLA
Robert Griesemer Google, Raymond Hu University of Hertfordshire, Wen Kokke University of Edinburgh, Julien Lange Royal Holloway University of London, Ian Lance Taylor Google, Bernardo Toninho Nova University of Lisbon / NOVA-LINCS, Philip Wadler University of Edinburgh, Nobuko Yoshida Imperial College London
Link to publication DOI Media Attached

Wed 18 Nov

Displayed time zone: Central Time (US & Canada) change

05:00 - 06:20
T-6BOOPSLA at SPLASH-III
Chair(s): Sorav Bansal IIT Delhi, Olivier Fl├╝ckiger Northeastern University
05:00
20m
Talk
DynamiTe: Dynamic Termination and Non-termination Proofs
OOPSLA
Ton Chanh Le Stevens Institute of Technology, Timos Antonopoulos Yale University, Parisa Fathololumi Stevens Institute of Technology, Eric Koskinen Stevens Institute of Technology, ThanhVu Nguyen University of Nebraska-Lincoln
Link to publication DOI Media Attached
05:20
20m
Talk
Programming and Reasoning with Partial Observability
OOPSLA
Eric Atkinson Massachusetts Institute of Technology, Michael Carbin Massachusetts Institute of Technology
Link to publication DOI Media Attached
05:40
20m
Talk
World Age in Julia: Optimizing Method Dispatch in the Presence of Eval
OOPSLA
Julia Belyakova Northeastern University, Benjamin Chung Northeastern University, Jack Gelinas Northeastern University, Jameson Nash Julia Computing, Ross Tate Cornell University, Jan Vitek Northeastern University / Czech Technical University
Link to publication DOI Media Attached
06:00
20m
Talk
Featherweight Go
OOPSLA
Robert Griesemer Google, Raymond Hu University of Hertfordshire, Wen Kokke University of Edinburgh, Julien Lange Royal Holloway University of London, Ian Lance Taylor Google, Bernardo Toninho Nova University of Lisbon / NOVA-LINCS, Philip Wadler University of Edinburgh, Nobuko Yoshida Imperial College London
Link to publication DOI Media Attached