Activity Report 2012. Project-Team RMOD. Analyses and Languages Constructs for Object-Oriented Application Evolution

Activity Report 2012 Project-Team RMOD Analyses and Languages Constructs for Object-Oriented Application Evolutio

Project-Team RMoD (Analyses and Language Constructs for Object-Oriented Application Evolution) 2011 Activity Report

This is the yearly report of the RMOD team (http://rmod.lille.inria.fr/). A good way to understand what we are doing

Project-Team RMoD 2013 Activity Report

Activity Report 2013 Project-Team RMOD Analyses and Languages Constructs for Object-Oriented Application Evolutio

Project-Team RMoD 2016 Activity Report

Activity Report 2016 Project-Team RMOD Analyses and Languages Constructs for Object-Oriented Application Evolutio

Project-Team RMoD (Analyses and Language Constructs for Object-Oriented Application Evolution) 2017 Activity Report

This is the yearly report of the RMOD team (http://rmod.inria.fr/). A good way to understand what we are doing

Object-oriented encapsulation for dynamically typed languages

Encapsulation in object-oriented languages has traditionally been based on static type systems. As a consequence, dynamically-typed languages have only limited support for encapsulation. This is surprising, considering that encapsulation is one of the most fundamental and important concepts behind object-oriented programming and that it is essential for writing programs that are maintainable and reliable, and that remain robust as they evolve. In this paper we describe the problems that are caused by insufficient encapsulation mechanisms and then present object-oriented encapsulation, a simple and uniform approach that solves these problems by bringing state of the art encapsulation features to dynamically typed languages. We provide a detailed discussion of our design rationales and compare them and their consequences to the encapsulation approaches used for statically typed languages. We also describe an implementation of object-oriented encapsulation in Smalltalk. Benchmarks of this implementation show that extensive use of object-oriented encapsulation results in a slowdown of less than 15 percent