Sub-clone refactoring in open source software artifacts

Authors:
Robert Tairas;Jeff Gray
Affiliations:
University of Alabama at Birmingham, Birmingham, AL;University of Alabama at Birmingham, Birmingham, AL
Venue:
Proceedings of the 2010 ACM Symposium on Applied Computing
Year:
2010

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Abstract

We present a study of revisions made to open source projects that documents the actual refactoring of code associated with code clones (i.e., sections of duplicated code). The study identifies a characteristic in which some clone refactorings were performed on only part of the clone (i.e., a sub-clone). We conclude that sub-clones should be considered during the clone maintenance activity.