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Documents authored by Flatt, Matthew

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.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.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}
}
Document
DOI: 10.4230/DARTS.1.1.0
Front Matter, Table of Contents

Authors: Camil Demetrescu and Matthew Flatt

Published in: DARTS, Volume 1, Issue 1, Special Issue of the 29th European Conference on Object-Oriented Programming (ECOOP 2015)

Abstract
Front Matter, Table of Contents
Cite as

Special Issue of the 29th European Conference on Object-Oriented Programming (ECOOP 2015). Dagstuhl Artifacts Series (DARTS), Volume 1, Issue 1, pp. 0:i-0:vi, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2016)

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@Article{demetrescu_et_al:DARTS.1.1.0,
  author =	{Demetrescu, Camil and Flatt, Matthew},
  title =	{{Front Matter, Table of Contents}},
  pages =	{0:i--0:vi},
  journal =	{Dagstuhl Artifacts Series},
  ISSN =	{2509-8195},
  year =	{2016},
  volume =	{1},
  number =	{1},
  editor =	{Demetrescu, Camil and Flatt, Matthew},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DARTS.1.1.0},
  URN =		{urn:nbn:de:0030-drops-61407},
  doi =		{10.4230/DARTS.1.1.0},
  annote =	{Keywords: Front Matter, Table of Contents}
}
Document
DOI: 10.4230/DARTS.2.1.0
Front Matter, Table of Contents, Preface, Artifact Evaluation Committee

Authors: Matthew Flatt and Tijs van der Storm

Published in: DARTS, Volume 2, Issue 1, Special Issue of the 30th European Conference on Object-Oriented Programming (ECOOP 2016)

Abstract
Front Matter, Table of Contents, Preface, Artifact Evaluation Committee
Cite as

Special Issue of the 30th European Conference on Object-Oriented Programming (ECOOP 2016). Dagstuhl Artifacts Series (DARTS), Volume 2, Issue 1, pp. 0:i-0:x, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2016)

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@Article{flatt_et_al:DARTS.2.1.0,
  author =	{Flatt, Matthew and van der Storm, Tijs},
  title =	{{Front Matter, Table of Contents, Preface, Artifact Evaluation Committee}},
  pages =	{0:i--0:x},
  journal =	{Dagstuhl Artifacts Series},
  ISSN =	{2509-8195},
  year =	{2016},
  volume =	{2},
  number =	{1},
  editor =	{Flatt, Matthew and van der Storm, Tijs},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DARTS.2.1.0},
  URN =		{urn:nbn:de:0030-drops-61212},
  doi =		{10.4230/DARTS.2.1.0},
  annote =	{Keywords: Front Matter, Table of Contents, Preface, Artifact Evaluation Committee}
}
Document
DOI: 10.4230/LIPIcs.ECOOP.2015.4
Towards Practical Gradual Typing

Authors: Asumu Takikawa, Daniel Feltey, Earl Dean, Matthew Flatt, Robert Bruce Findler, Sam Tobin-Hochstadt, and Matthias Felleisen

Published in: LIPIcs, Volume 37, 29th European Conference on Object-Oriented Programming (ECOOP 2015)

Abstract
Over the past 20 years, programmers have embraced dynamically-typed programming languages. By now, they have also come to realize that programs in these languages lack reliable type information for software engineering purposes. Gradual typing addresses this problem; it empowers programmers to annotate an existing system with sound type information on a piecemeal basis. This paper presents an implementation of a gradual type system for a full-featured class-based language as well as a novel performance evaluation framework for gradual typing.
Cite as

Asumu Takikawa, Daniel Feltey, Earl Dean, Matthew Flatt, Robert Bruce Findler, Sam Tobin-Hochstadt, and Matthias Felleisen. Towards Practical Gradual Typing. In 29th European Conference on Object-Oriented Programming (ECOOP 2015). Leibniz International Proceedings in Informatics (LIPIcs), Volume 37, pp. 4-27, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2015)

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@InProceedings{takikawa_et_al:LIPIcs.ECOOP.2015.4,
  author =	{Takikawa, Asumu and Feltey, Daniel and Dean, Earl and Flatt, Matthew and Findler, Robert Bruce and Tobin-Hochstadt, Sam and Felleisen, Matthias},
  title =	{{Towards Practical Gradual Typing}},
  booktitle =	{29th European Conference on Object-Oriented Programming (ECOOP 2015)},
  pages =	{4--27},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-86-6},
  ISSN =	{1868-8969},
  year =	{2015},
  volume =	{37},
  editor =	{Boyland, John Tang},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ECOOP.2015.4},
  URN =		{urn:nbn:de:0030-drops-52156},
  doi =		{10.4230/LIPIcs.ECOOP.2015.4},
  annote =	{Keywords: Gradual typing, object-oriented programming, performance evaluation}
}
Document
DOI: 10.4230/LIPIcs.SNAPL.2015.113
The Racket Manifesto

Authors: Matthias Felleisen, Robert Bruce Findler, Matthew Flatt, Shriram Krishnamurthi, Eli Barzilay, Jay McCarthy, and Sam Tobin-Hochstadt

Published in: LIPIcs, Volume 32, 1st Summit on Advances in Programming Languages (SNAPL 2015)

Abstract
The creation of a programming language calls for guiding principles that point the developers to goals. This article spells out the three basic principles behind the 20-year development of Racket. First, programming is about stating and solving problems, and this activity normally takes place in a context with its own language of discourse; good programmers ought to formulate this language as a programming language. Hence, Racket is a programming language for creating new programming languages. Second, by following this language-oriented approach to programming, systems become multi-lingual collections of interconnected components. Each language and component must be able to protect its specific invariants. In support, Racket offers protection mechanisms to implement a full language spectrum, from C-level bit manipulation to soundly typed extensions. Third, because Racket considers programming as problem solving in the correct language, Racket also turns extra-linguistic mechanisms into linguistic constructs, especially mechanisms for managing resources and projects. The paper explains these principles and how Racket lives up to them, presents the evaluation framework behind the design process, and concludes with a sketch of Racket's imperfections and opportunities for future improvements.
Cite as

Matthias Felleisen, Robert Bruce Findler, Matthew Flatt, Shriram Krishnamurthi, Eli Barzilay, Jay McCarthy, and Sam Tobin-Hochstadt. The Racket Manifesto. In 1st Summit on Advances in Programming Languages (SNAPL 2015). Leibniz International Proceedings in Informatics (LIPIcs), Volume 32, pp. 113-128, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2015)

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@InProceedings{felleisen_et_al:LIPIcs.SNAPL.2015.113,
  author =	{Felleisen, Matthias and Findler, Robert Bruce and Flatt, Matthew and Krishnamurthi, Shriram and Barzilay, Eli and McCarthy, Jay and Tobin-Hochstadt, Sam},
  title =	{{The Racket Manifesto}},
  booktitle =	{1st Summit on Advances in Programming Languages (SNAPL 2015)},
  pages =	{113--128},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-939897-80-4},
  ISSN =	{1868-8969},
  year =	{2015},
  volume =	{32},
  editor =	{Ball, Thomas and Bodík, Rastislav and Krishnamurthi, Shriram and Lerner, Benjamin S. and Morriset, Greg},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.SNAPL.2015.113},
  URN =		{urn:nbn:de:0030-drops-50211},
  doi =		{10.4230/LIPIcs.SNAPL.2015.113},
  annote =	{Keywords: design guidelines, language generation, full-spectrum language}
}
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