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IEICE TRANSACTIONS on Information

An Investigation into the Characteristics of Merged Code Clones during Software Evolution

Eunjong CHOI, Norihiro YOSHIDA, Katsuro INOUE

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Summary :

Although code clones (i.e. code fragments that have similar or identical code fragments in the source code) are regarded as a factor that increases the complexity of software maintenance, tools for supporting clone refactoring (i.e. merging a set of code clones into a single method or function) are not commonly used. To promote the development of refactoring tools that can be more widely utilized, we present an investigation of clone refactoring carried out in the development of open source software systems. In the investigation, we identified the most frequently used refactoring patterns and discovered how merged code clone token sequences and differences in token sequence lengths vary for each refactoring pattern.

Publication
IEICE TRANSACTIONS on Information Vol.E97-D No.5 pp.1244-1253
Publication Date
2014/05/01
Publicized
Online ISSN
1745-1361
DOI
10.1587/transinf.E97.D.1244
Type of Manuscript
PAPER
Category
Software Engineering

Authors

Eunjong CHOI
  Osaka University
Norihiro YOSHIDA
  Nara Institute of Science and Technology
Katsuro INOUE
  Osaka University

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