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Paper Abstract and Keywords
Presentation 2014-05-09 09:30
Identifying Cross-Function Side Effects using Static Analysis
Jiachen Yang, Keisuke Hotta, Yoshiki Higo, Shinji Kusumoto (Osaka Univ.) SS2014-5
Abstract (in Japanese) (See Japanese page) 
(in English) Side effects are modifications done to the state of the objects in Object-Oriented Programming languages such as Java. Side effects can happen across the boundary of the functions, therefore they are important properties that often be neglected by the documentations. In this paper, we studied the side effects of functions by using a static analysis method to automatically infer the state dependencies for the return value and side effects of functions. We also present a set of annotations to document these state dependencies. As a result, the annotations presented in this paper reveals well-defined state interactions between objects. These annotations can be used in further investigations by both programmers and tools. We have implemented the analysis method targeting Java bytecode and tested it on vary-sized open source Java software libraries. From our experimental results, we found that 25--33% of the functions in the evaluated open source Java libraries are pure functions, which indicates that a large percentage of the functions is suitable for high level refactoring. And we present a case study of equals and hashCode functions to show the importance of our method in real world programming tasks.
Keyword (in Japanese) (See Japanese page) 
(in English) state boundary / state dependency / object-oriented / effect annotation / static analysis / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 23, SS2014-5, pp. 25-30, May 2014.
Paper # SS2014-5 
Date of Issue 2014-05-01 (SS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Notes on Review This article is a technical report without peer review, and its polished version will be published elsewhere.
Download PDF SS2014-5

Conference Information
Committee SS  
Conference Date 2014-05-08 - 2014-05-09 
Place (in Japanese) (See Japanese page) 
Place (in English) ISE SHIMIN - KATSUDOU Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General topics 
Paper Information
Registration To SS 
Conference Code 2014-05-SS 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Identifying Cross-Function Side Effects using Static Analysis 
Sub Title (in English)  
Keyword(1) state boundary  
Keyword(2) state dependency  
Keyword(3) object-oriented  
Keyword(4) effect annotation  
Keyword(5) static analysis  
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Keyword(8)  
1st Author's Name Jiachen Yang  
1st Author's Affiliation Osaka Univercity (Osaka Univ.)
2nd Author's Name Keisuke Hotta  
2nd Author's Affiliation Osaka Univercity (Osaka Univ.)
3rd Author's Name Yoshiki Higo  
3rd Author's Affiliation Osaka Univercity (Osaka Univ.)
4th Author's Name Shinji Kusumoto  
4th Author's Affiliation Osaka Univercity (Osaka Univ.)
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Speaker Author-1 
Date Time 2014-05-09 09:30:00 
Presentation Time 30 minutes 
Registration for SS 
Paper # SS2014-5 
Volume (vol) vol.114 
Number (no) no.23 
Page pp.25-30 
#Pages 6 
Date of Issue 2014-05-01 (SS) 

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