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Samuel Goodwin @samuelgoodwin Refactoring and Stuff

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What is refactoring? • Changing code without changing code behavior.

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Why refactor? • Code is for humans • Nobody's perfect • Requirements change

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When to refactor? • When it smells • When code becomes too rigid • Maybe not before deadlines • Sometimes not at all ( nuke and pave! )

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How to refactor? • Step 0: Use version control!

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Objc_dep ( github.com/nst/objc_dep )

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Delete

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MVC Ideally...

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What to aim for? • Single responsibility principle • Open/closed principle • Liskov Substitution principle • Interface segregation principle • Dependency inversion principle

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• Coding Guidelines for Cocoa • Concepts in Objective-C Programming • Cocoa Fundamentals Guide From the guys who brought you Cocoa: