Extending Actionability in Better Code Hub Suggesting move module refactorings Teodor Kurtev
[email protected] July 14, 2017, 48 pages Supervisor: dr. Ana-Maria Oprescu,
[email protected] Host supervisor: dr. Magiel Bruntink,
[email protected] Host organisation: Software Improvement Group, Inc., https://www.sig.eu Universiteit van Amsterdam Faculteit der Natuurwetenschappen, Wiskunde en Informatica Master Software Engineering http://www.software-engineering-amsterdam.nl Abstract Undoubtedly, refactoring can have a positive effect on overall system quality, and it is a critical part of the work cycle of every developer. However, finding the right refactoring opportunities can be a difficult task. This is particularly the case for refactorings related to overall system structure. One of the best ways to address such issues is to apply the move module refactoring. In this thesis, we propose a way of automatically detecting refactoring opportunities for move module refactorings in the context of the C# language using a Compiler as a Service (CaaS) - Roslyn. We evaluate our approach using seven open source projects and an expert panel. The results from these validation experiments showed our approach as promising - the group of experts found more than half of the proposed refactorings useful. 1 Contents Abstract 1 Acronyms 5 1 Introduction 6 1.1 Problem analysis....................................... 6 1.2 Research questions...................................... 7 1.3 Solution outline........................................ 8 1.4 Definitions........................................... 8 1.5 Outline ............................................ 8 2 Background 10 2.1 Refactoring .......................................... 10 2.2 Code smells.......................................... 10 2.3 Move module refactoring................................... 11 2.4 Better Code Hub (BCH) and the SIG Maintainability Model .............