Code Clone Detection in Visual Studio 2012

MSc. IT University of Moratuwa

Batch 8

IN 5210 – System Analysis and design

Members

Suren Gamage

Suhail Jamaldeen

Sivasithamparam Rajivkanth

Prasith Premachandra

Agenda

What is code clone?

What is found?

What is not found?

To exclude specific files or methods from the analysis

Benefits

What is code clone?

Code clones are separate fragments of code that are very similar.

The code clone analyzer searches for duplicate code in Visual C# and Visual Basic.

Available in Visual Studio Ultimate or Visual Studio Premium.

Analyzed find code clones in a particular code fragment

throughout the solution.

A particular code fragment

Through out the solution

Comparing Code Clone

What Is Found?

Renamed identifiers

Insert and delete statements added

Rearranged statements

What Is Not Found?

Type declarations are not compared

Code less than 10 statements long.

Fragments with more than 40% changed tokens.

If a project contains a .codeclonesettings file, code elements that are defined in that project will not be searched if they are named in the Exclusions section of the .codeclonesettings file.

Some kinds of generated code are excluded: *.designer.cs, *.designer.vb

· InitializeComponent methods

To exclude specific files or methods from the analysis

Add a new XML file to the Visual Studio project in which the methods that you want to exclude are defined.

It does not matter whether the file is part of the project. It must be in the top directory of the project.

Change the file name extension to .codeclonesettings

Benefits

Checking for similar issues before check-in

Reference information for code review

Architecture refactoring

Code clean up

Bug fixing

Bug investigation

Demo

Q & A

Reference http://msdn.microsoft.com/en-us/library/hh205279.aspx