4 Search Results for "Barzilay, Eli"

Document
DOI: 10.4230/LIPIcs.CP.2025.16
PrintTalk: A Language for Constraint-Based 3D Modelling

Authors: Jef Jacobs, Wolfgang De Meuter, and Jens Nicolay

Published in: LIPIcs, Volume 340, 31st International Conference on Principles and Practice of Constraint Programming (CP 2025)

Abstract
Programmatic CAD (PCAD) is an emerging alternative to traditional visual CAD software. However, state-of-the-art PCAD tools have limited or no support for constraints. Consequently, these tools depend solely on parametrisation for variability, reusability, and composition of shapes. This leads to problems such as parameter explosion, leaky compositional abstraction, and prevents a declarative approach to defining spatial patterns (linear, grid, circular, etc.) for the constituents of a composition. This paper describes the design of PrintTalk, a PCAD language that supports 3D modelling by composing shapes and expressing relations between them using first-class constraints. Evaluating PrintTalk against state-of-the-art PCAD tools demonstrates that its expressive abstraction and composition mechanisms facilitate the design and promotes the reuse of shapes.
Cite as

Jef Jacobs, Wolfgang De Meuter, and Jens Nicolay. PrintTalk: A Language for Constraint-Based 3D Modelling. In 31st International Conference on Principles and Practice of Constraint Programming (CP 2025). Leibniz International Proceedings in Informatics (LIPIcs), Volume 340, pp. 16:1-16:22, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2025)

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@InProceedings{jacobs_et_al:LIPIcs.CP.2025.16,
  author =	{Jacobs, Jef and De Meuter, Wolfgang and Nicolay, Jens},
  title =	{{PrintTalk: A Language for Constraint-Based 3D Modelling}},
  booktitle =	{31st International Conference on Principles and Practice of Constraint Programming (CP 2025)},
  pages =	{16:1--16:22},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-380-5},
  ISSN =	{1868-8969},
  year =	{2025},
  volume =	{340},
  editor =	{de la Banda, Maria Garcia},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.CP.2025.16},
  URN =		{urn:nbn:de:0030-drops-238775},
  doi =		{10.4230/LIPIcs.CP.2025.16},
  annote =	{Keywords: Programmatic 3D Modelling, PCAD, Domain specific language, Constraints}
}
Document
Pearl/Brave New Idea
DOI: 10.4230/LIPIcs.ECOOP.2025.42
Contract Systems Need Domain-Specific Notations (Pearl/Brave New Idea)

Authors: Cameron Moy, Ryan Jung, and Matthias Felleisen

Published in: LIPIcs, Volume 333, 39th European Conference on Object-Oriented Programming (ECOOP 2025)

Abstract
Contract systems enable programmers to state specifications and have them enforced at run time. First-order contracts are expressed using ordinary code, while higher-order contracts are expressed using the notation familiar from type systems. Most interface descriptions, though, come with properties that involve not just assertions about single method calls, but entire call chains. Typical contract systems cannot express these specifications concisely. Such specifications demand domain-specific notations. In response, this paper proposes that contract systems abstract over the notation used for stating specifications. It presents an architecture for such a system, some illustrative examples, and an evaluation in terms of common notations from the literature.
Cite as

Cameron Moy, Ryan Jung, and Matthias Felleisen. Contract Systems Need Domain-Specific Notations (Pearl/Brave New Idea). In 39th European Conference on Object-Oriented Programming (ECOOP 2025). Leibniz International Proceedings in Informatics (LIPIcs), Volume 333, pp. 42:1-42:24, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2025)

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@InProceedings{moy_et_al:LIPIcs.ECOOP.2025.42,
  author =	{Moy, Cameron and Jung, Ryan and Felleisen, Matthias},
  title =	{{Contract Systems Need Domain-Specific Notations}},
  booktitle =	{39th European Conference on Object-Oriented Programming (ECOOP 2025)},
  pages =	{42:1--42:24},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-373-7},
  ISSN =	{1868-8969},
  year =	{2025},
  volume =	{333},
  editor =	{Aldrich, Jonathan and Silva, Alexandra},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ECOOP.2025.42},
  URN =		{urn:nbn:de:0030-drops-233348},
  doi =		{10.4230/LIPIcs.ECOOP.2025.42},
  annote =	{Keywords: software contracts, domain-specific languages}
}
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.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)

Copy BibTex To Clipboard

@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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