43 Refactorings in 40 minutes
summary
Live coding on a Kotlin server project demonstrates 43 refactorings in 40 minutes, using IntelliJ IDEA’s hidden actions (often via Alt‑Enter reveals hidden refactorings) plus a custom progress‑bar/refactor counter and a TCR workflow (TCR (test and commit or revert)). Viewers see concrete edits: rename, convert class→object, convert fun interface→type alias, extract/inline, operator refactors, move across files, and tests auto‑committing or auto‑reverting, proving the sequence works end‑to‑end.
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chapters (15)
- 0:00Introduction
- 1:28What counts as refactoring
- 3:12Refactoring methodology
- 4:15First refactorings
- 9:06Server and app structure
- 13:22App functionality and DB logic
- 16:28Flatten result types with early returns
- 19:56Refactor while reading code
- 20:37Refactor item type and quality ops
- 24:05Compound refactorings with switcheroo
- 26:34Convert classes to objects/functions
- 31:09From fun interfaces to type aliases
- 35:05Convert objects to top-level functions
- 37:53Bulk refactoring with multicursor
- 39:40Refactoring and AI tools
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