A Compositional Paradigm of Automating Refactorings

Vakilian, Mohsen; Chen, Nicholas; Zilouchian Moghaddam, Roshanak; Negara, Stas; Johnson, Ralph E.

Permalink

https://hdl.handle.net/2142/30851 Copy

Description

Title

A Compositional Paradigm of Automating Refactorings

Author(s)

• Vakilian, Mohsen
• Chen, Nicholas
• Zilouchian Moghaddam, Roshanak
• Negara, Stas
• Johnson, Ralph E.

Issue Date

2012-05

Keyword(s)

• Refactoring
• Restructuring
• Composition
• Empirical

Abstract

Though modern IDEs have supported refactorings for more than a decade, recent studies suggest that programmers greatly underuse such tools, especially for complex refactorings. Complex refactorings affect several methods or classes and tend to be tedious and error-prone to perform by hand. To promote the use of refactoring tools for complex changes, we propose a new paradigm for automating refactorings called compositional refactoring. The key idea is to perform small, predictable changes using a tool and manually compose them into complex changes. This paradigm trades off some level of automation by higher levels of predictability and control. We show that this paradigm is natural, because our analysis of programmers’ use of the Eclipse refactoring tool in the wild shows that they frequently batch and compose automated refactorings. We then show that programmers are receptive to this new paradigm through a survey of 100 respondents. Finally, we show that the compositional paradigm is effective through a controlled study of 13 professional programmers, comparing this paradigm to the existing wizard-based one.

Type of Resource

text

Language

en

Permalink

http://hdl.handle.net/2142/30851

Sponsor(s)/Grant Number(s)

NSF CCF 11-17960; DOE DE-F02-06ER25752

Owning Collections