Resharper introduction

1. Resharper
Refactoring and productivity
extension by JetBrains

2. Refactoring
“A disciplined technique for restructuring an
existing body of code, altering its internal
structure without changing its external
behavior"
Abstraction Class fragmentation
Naming convention

3. Refactoring - Abstraction
• Techniques that allow for more abstraction
– Encapsulate Field – force code to access the field
with getter and setter methods
– Generalize Type – create more general types to
allow for more code sharing
– Replace Type
– Replace conditional with polymorphism

4. Refactoring - Class fragmentation
• Techniques for breaking code apart into more
logical pieces
– Componentization breaks code down into reusable
semantic units which present clear, well-defined,
simple-to-use interfaces.
– Extract Class moves part of the code from an existing
class into a new class.
– Extract Method, to turn part of a larger method into a
new method. By breaking down code in smaller
pieces, it is more easily understandable. This is also
applicable to functions.

5. Refactoring - Naming convention
• Techniques for improving names and location
of code
– Move Method or Move Field – move to a more
appropriate Class or source file
– Rename Method or Rename Field – changing the
name into a new one that better reveals its
purpose
– Pull Up – in OOP, move to a superclass
– Push Down – in OOP, move to a subclass

6. Features
• Code browsing
• Code clean-up
• Refactoring
• Coding assistance
• Micro code generation
• Other useful features

7. Support
• C# 5.0
• VB11
• JavaScript
• CSS
• HTML
• ASP.NET
• ASP.NET MVC
• Razor
• XML, XAML
• WinRT
• MSBuild and NAnt
build scripts.

9. IDEA vs VS
• 2 different keyboard scheme
– IDEA more familiar to Intellij IDE
– VS scheme more familiar to VS users
– VS scheme will never override a key mapped by
visual studio

10. Part 1 : Code browsing
• Navigate : ART-R-N Find : ALT-R-F
• Navigate to : Alt-' File : ctrl-t / ctrl-shft-t / alt-
shift-t
• Related files : ctrl - alt - f7
• Goto implementation : ctrl-F12
• Goto definition : alt-F12
• Find usages : shift f12

11. Part 2 : Code clean-up
• quickfix trio :
– Alt-Enter
– Alt-PgDn
– Alt-PgUp
• moving code around: ctrl-alt-shift-arrows
• View file structure: ctrl-alt-f
• Code cleanup: ctrl-e-c
• see: resharper -> options -> c# -> formatting style
• Safe delete : alt-Del

12. Part 3 : Refactoring
• Convert
• Rename
• Change signature
• Encapsulate/extract fields/properties/classes
• Introduce field/method/variable
• Inline field/method/variable
• Move to folder
• Pull and push memebers

13. Part 4 : Coding assistance
• Code generation
• Code templates
• Code cleanup

14. Part 5 : Micro code generation
• Snippets
• Generators
• Templates

15. Part 6 - other
• Stack trace explorer
• goto decleration to decompiled MSIL
• TODO list explorer
• Test runner
• Globalization
• Patterns catalog
• XML document support
• MSBuild or nant build scripts support
• Javascript and CSS support

16. Pros and cons
• Helps enforce standards
• Boosts productivity
• Helps code reviews
• Good analysis tools
• Over-refactoring
• Tool reliance
• Shapes the way you
think

17. Learning tips
• Keep the keymap under your keyboard
• Focus on a few commands at a time
• Don’t be afraid to try new shortcuts
• Keep your hands on the keyboard
• Watch other people use Resharper
• Learn with friends and teammates

18. The end

19. Extra

20. What does it do?
• solution-wide static code analysis (error detection
on-the-fly, without the need to compile)
• provides additional features for error correction
• code completion, navigation, search
• syntax highlighting, formatting
• code generation and optimization
• carries out 40 automated refactorings and
streamlines unit testing using NUnit and MSTest

21. Sources
• http://www.jetbrains.com/resharper/webhelp
/Code_Analysis__Examples_of_Quick-
Fixes.html
• Wikipedia