3 Search Results for "Greenman, Ben"

Document
DOI: 10.4230/LIPIcs.SNAPL.2019.5
From Macros to DSLs: The Evolution of Racket

Authors: Ryan Culpepper, Matthias Felleisen, Matthew Flatt, and Shriram Krishnamurthi

Published in: LIPIcs, Volume 136, 3rd Summit on Advances in Programming Languages (SNAPL 2019)

Abstract
The Racket language promotes a language-oriented style of programming. Developers create many domain-specific languages, write programs in them, and compose these programs via Racket code. This style of programming can work only if creating and composing little languages is simple and effective. While Racket’s Lisp heritage might suggest that macros suffice, its design team discovered significant shortcomings and had to improve them in many ways. This paper presents the evolution of Racket’s macro system, including a false start, and assesses its current state.
Cite as

Ryan Culpepper, Matthias Felleisen, Matthew Flatt, and Shriram Krishnamurthi. From Macros to DSLs: The Evolution of Racket. In 3rd Summit on Advances in Programming Languages (SNAPL 2019). Leibniz International Proceedings in Informatics (LIPIcs), Volume 136, pp. 5:1-5:19, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2019)

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@InProceedings{culpepper_et_al:LIPIcs.SNAPL.2019.5,
  author =	{Culpepper, Ryan and Felleisen, Matthias and Flatt, Matthew and Krishnamurthi, Shriram},
  title =	{{From Macros to DSLs: The Evolution of Racket}},
  booktitle =	{3rd Summit on Advances in Programming Languages (SNAPL 2019)},
  pages =	{5:1--5:19},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-113-9},
  ISSN =	{1868-8969},
  year =	{2019},
  volume =	{136},
  editor =	{Lerner, Benjamin S. and Bod{\'\i}k, Rastislav and Krishnamurthi, Shriram},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.SNAPL.2019.5},
  URN =		{urn:nbn:de:0030-drops-105482},
  doi =		{10.4230/LIPIcs.SNAPL.2019.5},
  annote =	{Keywords: design principles, macros systems, domain-specific languages}
}
Document
DOI: 10.4230/LIPIcs.SNAPL.2019.6
The Dynamic Practice and Static Theory of Gradual Typing

Authors: Michael Greenberg

Published in: LIPIcs, Volume 136, 3rd Summit on Advances in Programming Languages (SNAPL 2019)

Abstract
We can tease apart the research on gradual types into two `lineages': a pragmatic, implementation-oriented dynamic-first lineage and a formal, type-theoretic, static-first lineage. The dynamic-first lineage’s focus is on taming particular idioms - `pre-existing conditions' in untyped programming languages. The static-first lineage’s focus is on interoperation and individual type system features, rather than the collection of features found in any particular language. Both appear in programming languages research under the name "gradual typing", and they are in active conversation with each other. What are these two lineages? What challenges and opportunities await the static-first lineage? What progress has been made so far?
Cite as

Michael Greenberg. The Dynamic Practice and Static Theory of Gradual Typing. In 3rd Summit on Advances in Programming Languages (SNAPL 2019). Leibniz International Proceedings in Informatics (LIPIcs), Volume 136, pp. 6:1-6:20, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2019)

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@InProceedings{greenberg:LIPIcs.SNAPL.2019.6,
  author =	{Greenberg, Michael},
  title =	{{The Dynamic Practice and Static Theory of Gradual Typing}},
  booktitle =	{3rd Summit on Advances in Programming Languages (SNAPL 2019)},
  pages =	{6:1--6:20},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-113-9},
  ISSN =	{1868-8969},
  year =	{2019},
  volume =	{136},
  editor =	{Lerner, Benjamin S. and Bod{\'\i}k, Rastislav and Krishnamurthi, Shriram},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.SNAPL.2019.6},
  URN =		{urn:nbn:de:0030-drops-105495},
  doi =		{10.4230/LIPIcs.SNAPL.2019.6},
  annote =	{Keywords: dynamic typing, gradual typing, static typing, implementation, theory, challenge problems}
}
Document
DOI: 10.4230/LIPIcs.SNAPL.2017.17
Migratory Typing: Ten Years Later

Authors: Sam Tobin-Hochstadt, Matthias Felleisen, Robert Findler, Matthew Flatt, Ben Greenman, Andrew M. Kent, Vincent St-Amour, T. Stephen Strickland, and Asumu Takikawa

Published in: LIPIcs, Volume 71, 2nd Summit on Advances in Programming Languages (SNAPL 2017)

Abstract
In this day and age, many developers work on large, untyped code repositories. Even if they are the creators of the code, they notice that they have to figure out the equivalent of method signatures every time they work on old code. This step is time consuming and error prone. Ten years ago, the two lead authors outlined a linguistic solution to this problem. Specifically they proposed the creation of typed twins for untyped programming languages so that developers could migrate scripts from the untyped world to a typed one in an incremental manner. Their programmatic paper also spelled out three guiding design principles concerning the acceptance of grown idioms, the soundness of mixed-typed programs, and the units of migration. This paper revisits this idea of a migratory type system as implemented for Racket. It explains how the design principles have been used to produce the Typed Racket twin and presents an assessment of the project's status, highlighting successes and failures.
Cite as

Sam Tobin-Hochstadt, Matthias Felleisen, Robert Findler, Matthew Flatt, Ben Greenman, Andrew M. Kent, Vincent St-Amour, T. Stephen Strickland, and Asumu Takikawa. Migratory Typing: Ten Years Later. In 2nd Summit on Advances in Programming Languages (SNAPL 2017). Leibniz International Proceedings in Informatics (LIPIcs), Volume 71, pp. 17:1-17:17, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@InProceedings{tobinhochstadt_et_al:LIPIcs.SNAPL.2017.17,
  author =	{Tobin-Hochstadt, Sam and Felleisen, Matthias and Findler, Robert and Flatt, Matthew and Greenman, Ben and Kent, Andrew M. and St-Amour, Vincent and Strickland, T. Stephen and Takikawa, Asumu},
  title =	{{Migratory Typing: Ten Years Later}},
  booktitle =	{2nd Summit on Advances in Programming Languages (SNAPL 2017)},
  pages =	{17:1--17:17},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-032-3},
  ISSN =	{1868-8969},
  year =	{2017},
  volume =	{71},
  editor =	{Lerner, Benjamin S. and Bod{\'\i}k, Rastislav and Krishnamurthi, Shriram},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops-dev.dagstuhl.de/entities/document/10.4230/LIPIcs.SNAPL.2017.17},
  URN =		{urn:nbn:de:0030-drops-71202},
  doi =		{10.4230/LIPIcs.SNAPL.2017.17},
  annote =	{Keywords: design principles, type systems, gradual typing}
}
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