Prospector Osq 2004 Final

Mining Jungloids to Cure Programmer Headaches Dave Mandelin, Ras Bodik UC Berkeley Doug Kimelman IBM

Motivation: the price of code reuse ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],ICompilationUnit cu = JavaCore.createCompilationUnitFrom( javaFile ); CompilationUnit ASTroot = AST.parseCompilationUnit(cu, false);

First key observation ,[object Object],[object Object],[object Object],[object Object],[object Object],ICompilationUnit cu = JavaCore.createCompilationUnitFrom( javaFile ); CompilationUnit ASTroot = AST.parseCompilationUnit(cu, false);

First key observation (cont’d) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],ICompilationUnit cu = JavaCore.createCompilationUnitFrom( javaFile ); CompilationUnit ASTroot = AST.parseCompilationUnit(cu, false);

Prospector: a jungloid assistant tool ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Demo ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Program representation ,[object Object],[object Object],[object Object],[object Object],[object Object],JavaEditor IWorkbenchPartSite Shell ISourceViewer StyledText .getSite() .getShell() .getTextWidget() .getViewer() .getShell()

Second key observation ,[object Object],[object Object],[object Object],[object Object],[object Object],JavaEditor IWorkbenchPartSite Shell .getSite() .getShell() ISourceViewer StyledText .getTextWidget() .getViewer() .getShell() IViewPartInputProvider UserInputWizardPage String JFormattedTextField Object MouseMotionListener EventListenerProxy

Experiment (shortest-path jungloids) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The downcast problem ,[object Object],[object Object],[object Object],IStructuredSelection ssel = (IStructuredSelection) sel; ICompilationUnit cu = (ICompilationUnit) sel.getFirstElement(); CompilationUnit ast = AST.parseCompilationUnit(cu, false); CompilationUnit ICompilationUnit IStructuredSelection Object .getFirstElement() AST.parseCompilationUnit(_, false) .getFirstElement() ActionContext ac = new ActionContext(startVar); char[] char_ary = ac.toString().toCharArray(); CompilationUnit resultVar = AST.parseCompilationUnit(char_ary);

The subtype mining algorithm ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The big picture ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Summary ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Future work ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Future work ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Prospector Osq 2004 Final

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Prospector Osq 2004 Final