Cross Language Clone Analysis Team 2 April 7, 2011

Parsing/CodeDOM Clone Analysis GUI Implementation Testing Current Status Path Forward 2

 Allen Tucker  Patricia Bradford  Greg Rodgers  Ashley Chafin 3

Parsing and conversion to CodeDOM 4

Accomplishments  Java and C# conversion into CodeDOM to support cross language detections are equal (see teal cells left)  Local variable statement in place for Java.  Not much progress this iteration. 5

I see ewe 6

7 Code Base CodeDOM Conversion Use Gold Parser for conversion Transformation Transform the CodeDOM elements into a sequence of tokens Processed Code Clone Analysis Run comparison algorithm on transformed code Transformed Code Clone Formatting Clone pair/class locations of the transformed code are mapped to the original code base by line numbers and file location Clone Match 0…*

8 Current Status  100 % complete with  Tokenization  Analysis  Formatting  Making progress on  Java into CodeDOM  C# into CodeDOM

9 Additions  Clone Match  Clone Type  Type 1 - An exact copy  Type 2 - A syntactically identical copy  Type 3 - A copy with further modifications  Fixed a handful (<10) bugs

How do you build the model? 10

11 Documentation TokenizeAnalyze Expressions25/25 Statements14/14 Other7/7 Total46/46 How are we using CodeDOM as a common code representation?

12 Documentation CodeDOM Expressions CodeArgumentReferenceExpression CodeDefaultValueExpression CodeBinaryOperatorExpression … 25 Java Expressions PreIncrementExpression MultiplicativeExpression ShiftExpression … 80+ C# Expressions PreIncrementExpression MultiplicativeExpression ShiftExpression … 80+

Sketches Old/New 13

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18 Need to add legend

19 Need to implement grouping by other types. Language/File group

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Demo 22

White Box and Black Box Testing 23

24  98/101 Unit Tests Currently Pass Failed based on recent change to tokenization technique for Labels to accommodate java and c# codeDOM conversion.

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Path Forward for the next iteration 27

28  Below is a list of the tasks for our next iteration: ◦ Parsing/CodeDOM  Continue Java, C# conversion to CodeDOM ◦ Clone Analysis  Look at Performance Improvements ◦ GUI  Bug fixes /Enhancements  Project Properties Page  Preference Page  Performance Checks/Enhancements Next Iteration

29 ◦ Documentation  User Stories, Use Cases, UML Models, Sketches  Functional Tests  Update schedule  Language Plugin Development ◦ Testing  Unit tests  Execute functional tests  Record bugs/issues found Next Iteration