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Documents authored by Zhang, Weixin

Document
Artifact
DOI: 10.4230/DARTS.7.2.11
Compositional Programming (Artifact)

Authors: Weixin Zhang, Yaozhu Sun, and Bruno C. d. S. Oliveira

Published in: DARTS, Volume 7, Issue 2, Special Issue of the 35th European Conference on Object-Oriented Programming (ECOOP 2021)

Abstract
Our main paper presents CP, a Compositional Programming language in a statically typed modular programming style. This artifact includes its Haskell implementation, together with several examples and three case studies written in CP. All code snippets in our main paper can be type-checked and run using our CP interpreter.
Cite as

Weixin Zhang, Yaozhu Sun, and Bruno C. d. S. Oliveira. Compositional Programming (Artifact). In Special Issue of the 35th European Conference on Object-Oriented Programming (ECOOP 2021). Dagstuhl Artifacts Series (DARTS), Volume 7, Issue 2, pp. 11:1-11:2, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2021)

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@Article{zhang_et_al:DARTS.7.2.11,
  author =	{Zhang, Weixin and Sun, Yaozhu and Oliveira, Bruno C. d. S.},
  title =	{{Compositional Programming (Artifact)}},
  pages =	{11:1--11:2},
  journal =	{Dagstuhl Artifacts Series},
  ISSN =	{2509-8195},
  year =	{2021},
  volume =	{7},
  number =	{2},
  editor =	{Zhang, Weixin and Sun, Yaozhu and Oliveira, Bruno C. d. S.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DARTS.7.2.11},
  URN =		{urn:nbn:de:0030-drops-140356},
  doi =		{10.4230/DARTS.7.2.11},
  annote =	{Keywords: Expression Problem, Compositionality, Traits}
}
Document
DOI: 10.4230/DARTS.3.2.10
EVF: An Extensible and Expressive Visitor Framework for Programming Language Reuse (Artifact)

Authors: Weixin Zhang and Bruno C. d. S. Oliveira

Published in: DARTS, Volume 3, Issue 2, Special Issue of the 31st European Conference on Object-Oriented Programming (ECOOP 2017)

Abstract
This artifact is based on EVF, an extensible and expressive Java visitor framework. EVF aims at reducing the effort involved in creation and reuse of programming languages. EVF an annotation processor that automatically generate boilerplate ASTs and AST for a given an Object Algebra interface. This artifact contains source code of the case study on "Types and Programming Languages", illustrating how effective EVF is in modularizing programming languages. There is also a microbenchmark in the artifact that shows that EVF has reasonable performance with respect to traditional visitors.
Cite as

Weixin Zhang and Bruno C. d. S. Oliveira. EVF: An Extensible and Expressive Visitor Framework for Programming Language Reuse (Artifact). In Special Issue of the 31st European Conference on Object-Oriented Programming (ECOOP 2017). Dagstuhl Artifacts Series (DARTS), Volume 3, Issue 2, pp. 10:1-10:2, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@Article{zhang_et_al:DARTS.3.2.10,
  author =	{Zhang, Weixin and Oliveira, Bruno C. d. S.},
  title =	{{EVF: An Extensible and Expressive Visitor Framework for Programming Language Reuse (Artifact)}},
  pages =	{10:1--10:2},
  journal =	{Dagstuhl Artifacts Series},
  ISSN =	{2509-8195},
  year =	{2017},
  volume =	{3},
  number =	{2},
  editor =	{Zhang, Weixin and Oliveira, Bruno C. d. S.},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/DARTS.3.2.10},
  URN =		{urn:nbn:de:0030-drops-72918},
  doi =		{10.4230/DARTS.3.2.10},
  annote =	{Keywords: visitor pattern, object algebras, modularity, domain-specific languages}
}
Document
DOI: 10.4230/LIPIcs.ECOOP.2017.29
EVF: An Extensible and Expressive Visitor Framework for Programming Language Reuse

Authors: Weixin Zhang and Bruno C. d. S. Oliveira

Published in: LIPIcs, Volume 74, 31st European Conference on Object-Oriented Programming (ECOOP 2017)

Abstract
Object Algebras are a design pattern that enables extensibility, modularity, and reuse in mainstream object-oriented languages such as Java. The theoretical foundations of Object Algebras are rooted on Church encodings of datatypes, which are in turn closely related to folds in functional programming. Unfortunately, it is well-known that certain programs are difficult to write, and may incur performance penalties when using Church-encodings/folds. This paper presents EVF: an extensible and expressive Java Visitor framework. The visitors supported by EVF generalize Object Algebras and enable writing programs using a generally recursive style rather than folds. The use of such generally recursive style enables users to more naturally write programs, which would otherwise require contrived workarounds using a fold-like structure. EVF visitors retain the type-safe extensibility of Object Algebras. The key advance in EVF is a novel technique to support extensible external visitors. Extensible external visitors are able to control traversals with direct access to the data structure being traversed, allowing dependent operations to be defined modularly without the need of advanced type system features. To make EVF practical, the framework employs annotations to automatically generate large amounts of boilerplate code related to visitors and traversals. To illustrate the applicability of EVF we conduct a case study, which refactors a large number of non-modular interpreters from the “Types and Programming Languages” (TAPL) book. Using EVF we are able to create a modular software product line (SPL) of the TAPL interpreters, enabling sharing of large portions of code and features. The TAPL software product line contains several modular operations, which would be non-trivial to define with standard Object Algebras.
Cite as

Weixin Zhang and Bruno C. d. S. Oliveira. EVF: An Extensible and Expressive Visitor Framework for Programming Language Reuse. In 31st European Conference on Object-Oriented Programming (ECOOP 2017). Leibniz International Proceedings in Informatics (LIPIcs), Volume 74, pp. 29:1-29:32, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017)

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@InProceedings{zhang_et_al:LIPIcs.ECOOP.2017.29,
  author =	{Zhang, Weixin and Oliveira, Bruno C. d. S.},
  title =	{{EVF: An Extensible and Expressive Visitor Framework for Programming Language Reuse}},
  booktitle =	{31st European Conference on Object-Oriented Programming (ECOOP 2017)},
  pages =	{29:1--29:32},
  series =	{Leibniz International Proceedings in Informatics (LIPIcs)},
  ISBN =	{978-3-95977-035-4},
  ISSN =	{1868-8969},
  year =	{2017},
  volume =	{74},
  editor =	{M\"{u}ller, Peter},
  publisher =	{Schloss Dagstuhl -- Leibniz-Zentrum f{\"u}r Informatik},
  address =	{Dagstuhl, Germany},
  URL =		{https://drops.dagstuhl.de/entities/document/10.4230/LIPIcs.ECOOP.2017.29},
  URN =		{urn:nbn:de:0030-drops-72749},
  doi =		{10.4230/LIPIcs.ECOOP.2017.29},
  annote =	{Keywords: Visitor Pattern, Object Algebras, Modularity, Domain-Specific Languages}
}
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