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A case for DOT: Theoretical Foundations for Objects with Pattern Matching and GADT-Style Reasoning

Publications associées (83)

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Type Soundness for Dependent Object Types’

Tiark Rompf, Nada Amin

Scala’s type system unifies aspects of ML modules, object-oriented, and functional programming. The Dependent Object Types (DOT) family of calculi has been proposed as a new theoretic foundation for Scala and similar expressive languages. Unfortunately, ty ...

2016

Implementing Higher-Kinded Types in Dotty

Martin Odersky, Guillaume André Fradji Martres, Dmytro Petrashko

dotty is a new, experimental Scala compiler based on DOT, the calculus of Dependent Object Types. Higher-kinded types are a natural extension of first-order lambda calculus, and have been a core construct of Haskell and Scala. As long as such types are jus ...

ACM2016

The Essence of Dependent Object Types

Martin Odersky, Tiark Rompf, Nada Amin, Sandro Stucki, Karl Samuel Grütter

Focusing on path-dependent types, the paper develops foundations for Scala from first principles. Starting from a simple calculus D-

Springer International Publishing2016

Auto-Collections for Scala

Dmytro Petrashko, Allan Vincent Roger Renucci

Modern programming languages such as Scala, Java and C# make extensive use of collections. A collection implementation represents a fixed choice in the dimensions of operation time and space utilization. Using the collection in a manner not consistent with ...

2016

Java and Scala's Type Systems are Unsound: The Existential Crisis of Null Pointers

Nada Amin

We present short programs that demonstrate the unsoundness of Java and Scala’s current type systems. In particular, these programs provide parametrically polymorphic functions that can turn any type into any type without (down)casting. Fortunately, paramet ...

2015

Style Checking With Scala.Meta

Eugene Burmako, Mathieu Baptiste Demarne

In many companies, code reviews are big parts of the day-to-day life of an engineer. Some can argue that the time spent on someone else’s code is time that some cannot spent on her or his own work. Code reviews usually allow to find two kinds of issues. Th ...

2015

Foundations of Path-Dependent Types

Martin Odersky, Tiark Rompf, Nada Amin

A scalable programming language is one in which the same concepts can describe small as well as large parts. Towards this goal, Scala unifies concepts from object and module systems. An essential ingredient of this unification is the concept of objects wit ...

Assoc Computing Machinery2014

A C++11 implementation of arbitrary-rank tensors for high-performance computing

Alejandro Marcos Aragon

This article discusses an efficient implementation of tensors of arbitrary rank by using some of the idioms introduced by the recently published C++ ISO Standard (C++11). With the aims at providing a basic building block for high-performance computing, a s ...

Elsevier Science Bv2014

Additional Material for "Unifying Data Representation Transformations"

Vlad Ureche

This report shows an attempt to formalize the data representation transformation mechanism in the ``Unifying Data Representation Transformations'' paper. Since the mechanism described in the paper is targeted at the Scala programming language and the speci ...

2014

RDF Stream Processing: Let's React

Jean Paul Calbimonte Perez

Stream processing has recently gained a prominent role in Computer Science research. From networks or databases to information theory or programming languages, a lot of work has been dedicated to conceive ways of representing, transmitting, processing and ...

2014