Dynamic Languages Symposium (DLS)

The Dynamic Languages Symposium (DLS) is a forum for discussion of dynamic languages, their implementation and application. While mature dynamic languages including Smalltalk, Lisp, Scheme, Self, Prolog, and APL continue to grow and inspire new converts, a new generation of dynamic scripting languages such as JavaScript, Python, Ruby, PHP, Tcl, Lua, and Clojure are successful in a wide range of applications. DLS provides a place for researchers and practitioners to come together and share their knowledge, experience, and ideas for future research and development.

DLS 2018


  • Most Notable Paper Award 2018 for 2008
    • Recipients: Jeremy G. Siek and Manish Vachharajani
    • Title: Gradual Typing With Unification-based Inference
    • Conference: DLS 2008
    • Paper: https://dl.acm.org/citation.cfm?doid=1408681.1408688
    • Citation: The 2008 DLS paper “Gradual Typing With Unification-based Inference” showed that one can increase the static guarantees made in a program through an ingenious combination of gradual typing and unification-base type inference. The ideas underlying this paper have found their way into the design of many modern programming languages, and have had a strong impact on the research community.
  • Most Notable Paper Award 2017 for 2007
    • Recipients: Stijn Mostinckx, Tom Van Cutsem, Stijn Timbermont, and Éric Tanter
    • Title: Mirages–Behavioral Intercession in a Mirror-based Architecture
    • Conference: DLS 2007
    • Paper: http://dl.acm.org/citation.cfm?id=1297095
    • Citation: The 2007 DLS paper “Mirages: Behavioral Intercession in a Mirror-based Architecture” combined the ideas of explicit mirrors for reflective introspection and modification with implicit mirrors for behavioral intercession. The work in this paper influenced and inspired the design of proxies in the JavaScript language, where it now has applications in areas such as security, testing, and virtualization of the DOM.
  • Most Notable Paper Award 2016 for 2006
    • Recipients: Armin Rigo and Samuele Pedroni
    • Title: PyPy’s Approach to Virtual Machine Construction
    • Conference: DLS 2006
    • Paper: http://dl.acm.org/citation.cfm?id=1176753
    • Citation: The 2006 DLS paper “PyPy’s Approach to Virtual Machine Construction” introduced the PyPy Python interpreter and the RPython framework. Both are still highly relevant in various areas to this day and will continue to be influential for many years, thus demonstrating highly impressive long-term vision and impact. The paper laid the theoretical and practical foundations of constructing a virtual machine from a high-level description and was consequently built upon by numerous follow-up publications. The software, which continues to be developed by a large and active open source community, proved extensively usable in multiple academic and industrial contexts.
  • Most Notable Paper Award 2015 for 2005
    • Recipients: Pascal Costanza and Robert Hirschfeld
    • Title: Language Constructs for Context-oriented Programming–An Overview of ContextL
    • Conference: DLS 2005
    • Paper: http://dl.acm.org/citation.cfm?id=1146842
    • Citation: The 2005 DLS paper “Language Constructs for Context-oriented Programming: An Overview of ContextL” introduced a framework that enables programmers to modify the behavior of a program based on the context in which it is used, without requiring changes to the original program. This paper triggered a cascade of research on Context-oriented Programming and spawned a community with its own international workshop series, which is still going strong today.

Past Events

Steering Committee Members

  • Davide Ancona, Università degli studi di Genova, Italy (PC Chair 2017)
  • Tim Felgentreff, Oracle Labs, Germany (PC Chair 2018)
  • Carl Friedrich Bolz, Heinrich-Heine-Universität Düsseldorf, Germany (SC Chair 2015)
  • Robert Hirschfeld, Hasso Plattner Institute Potsdam, Germany (Past Chair, Emeritus Member 2016)
  • Roberto Ierusalimschy, Pontifícia Universidade Católica do Rio de Janeiro, Brazil (PC Chair 2016)
  • Stefan Marr, University of Kent, UK (PC Chair 2019)
  • Benjamin C. Pierce, University of Pennsylvania, USA (SIGPLAN)
  • Laurence Tratt, King’s College London, UK (Emeritus Member 2016)

Past Steering Committee Members

  • Pascal Costanza, Intel ExaScience Lab, Belgium (SC Chair)
  • Theo D’Hondt, Vrije Universiteit Brussel, Belgium
  • Richard Gabriel, IBM Research, USA
  • Jeremy Gibbons, Oxford University, UK (SIGPLAN)
  • Robert Hirschfeld, Hasso Plattner Institute Potsdam, Germany (SC Chair)
  • Manuel Serrano, Inria Sophia-Antipolis, France
  • Peter Thiemann, University of Freiburg, Germany (SIGPLAN)
  • Dave Thomas, Bedarra Research Labs, Canada
  • Alessandro Warth, SAP, USA
  • Roel Wuyts, IMEC, Belgium