QwalKeko, a History Querying Tool
- 1. QwalKeko, a History Querying Tool Reinout Stevens, Coen De Roover, Carlos Noguera resteven@vub.ac.be @ReinoutStevens 1 Wednesday 6 March 13
- 2. Context Program Comprehension 2 Wednesday 6 March 13
- 3. Was this method pulled up? Who introduced this class? Who has made changes to my classes? History Questions How often is this method Why were these changes changed? introduced? Template-based Reconstruction of Complex Refactorings Kyle Prete, Napol Rachatasumrit, Nikita Sudan, Miryung Kim International Conference on Software Maintenance (ICSM), p.1--10, 2010 Using Information Fragments to Answer the Questions Developers Ask Thomas Fritz and Gail C. Murphy International Conference on Software Engineering (ICSE), p.175--184, 2010 3 Wednesday 6 March 13
- 4. Was this method pulled up? Who introduced this class? Who has made changes to my classes? History Questions How often is this method Why were these changes changed? introduced? Template-based Reconstruction of Complex Refactorings Kyle Prete, Napol Rachatasumrit, Nikita Sudan, Miryung Kim International Conference on Software Maintenance (ICSM), p.1--10, 2010 Using Information Fragments to Answer the Questions Developers Ask Thomas Fritz and Gail C. Murphy International Conference on Software Engineering (ICSE), p.175--184, 2010 3 Wednesday 6 March 13
- 5. Pulled up Method BaseClass Version 1 DerivedClass Method() BaseClass Method() Version 2 DerivedClass 4 Wednesday 6 March 13
- 6. Pulled up Method (ast :MethodDeclaration ?method) Version 1 (declaring-class ?method ?derived) (method-moved ?method ?pulled) Version 2 (declaring-class ?pulled ?base) (superclass ?base ?derived) Template-based Reconstruction of Complex Refactorings Kyle Prete, Napol Rachatasumrit, Nikita Sudan, Miryung Kim International Conference on Software Maintenance (ICSM), p.1--10, 2010 5 Wednesday 6 March 13
- 7. QwalKeko (qwal graph version1 version2 (qin-current Version 1 (ast :MethodDeclaration ?method) (declaring-class ?method ?derived)) q=> ;;transition to next version (qin-current (method-moved ?method ?pulled) Version 2 (declaring-class ?pulled ?base) (superclass ?base ?derived))) 6 Wednesday 6 March 13
- 8. Multiversion Refactorings (qwal graph version1 ?versionX Version 1 (qin-current (ast :MethodDeclaration ?method) (declaring-class ?method ?derived)) ... (q=>+) ;;skip >= 1 versions (qin-current Version X (method-moved ?method ?pulled) (declaring-class ?pulled ?base) (superclass ?base ?derived))) 7 Wednesday 6 March 13
- 9. QwalKeko Pr Graph Query og Language ra La m od ry ng Q Qwal sto el ua ue Hi ge ry M Ekeko + + 8 Wednesday 6 March 13
- 10. Other Domains • Answering Developer Questions • Temporal Bad Smells • Detecting Co-changing Entities • Zombie Methods • Verifying Design Process Reasoning over the Evolution of Source Code using Quantified Regular Path Expressions. Reinout Stevens, Coen De Roover, Carlos Noguera and Viviane Jonckers Working Conference on Reverse Engineering (WCRE), 2011 9 Wednesday 6 March 13
- 11. Future Work: Replaying Changes ... ?? ... 12 - public int foo; 12 + private int foo; 37 + public getFoo(){ 38 + return foo; } 10 Wednesday 6 March 13
- 12. Questions Reinout Stevens resteven@vub.ac.be @ReinoutStevens http://github.com/ReinoutStevens/damp.qwal http://github.com/cderoove/damp.ekeko 11 Wednesday 6 March 13