Your Refactoring Toolbox

Techniques for keeping your Swift app compiling & your tests green while refactoring!

[Playgroundscon 2017, Melbourne, Australia]

Transcript

1. Your Refactoring Toolbox Rachel Bobbins – Principal Engineer at Stitch Fix @bobbins
4. Renovation Toolbox Architects Scaffolding Tarps Local regulations Hammers, screwdrivers & power tools Everything that’s already in place!
5. Refactoring is a lot like renovating And Swift provides plenty of tools to support it
7. What does success look like? Team effort Avoid a pile of rubble Incremental progress
8. Refactoring Tools Deprecation warnings Other compiler warnings Compilation failures Protocols Tests Team’s existing code Team’s collective knowledge Open-source inspiration
11. A dream bathroom
12. 1. Know the problem. Have a vision. Is your refactor solving a problem? Or just using the latest new Swift feature?
13. 2. Temporary deprecation warnings Even before deprecating a single line of code
15. 3. Temporary protocols It’s not the same as protocol-oriented programming
17. Define
18. Extend
19. Conform
20. Everything is OK!
21. 4. Deprecation warnings To indicate code that’s actually deprecated.
22. 5. Tests
26. Thank You