Bespoke Artisanal Swift Static Analysis

on YouTube ↗29m

" summary

Shows how to build custom Swift static analysis using SourceKit requests (editor open, index, cursor info) plus SwiftLint’s analyzer pipeline to get type-checked info without forking the compiler. Implements rules to find dead code and unused imports, runs via swiftlint analyze with build log compiler args, and uncovers concrete results: about 1,400 unused imports and removal of 70 direct dependencies at Lyft. Notes limitations like missing USRs for operators and false positives for IBOutlets and protocol-only use, and uses SourceKit and SwiftLint as the core tools.

AI-written summary · about

" chapters (9)

1. 0:00Start
2. 0:50What Is Static Analysis
3. 2:56Objective C
4. 6:51The Ingredients of a Static Analysis Pipeline
5. 8:28Swift Lint
6. 10:12Source Kit
7. 11:53Index Request
8. 14:10Unique Symbol Resolution Identifier
9. 23:16Challenges

" related talks

• 28mSwiftly Swift manipulation... with SwiftMarcin Krzyzanowski · FrenchKit 2019
• 33mMaking Your Own Tools Using SwiftSyntaxYusuke Kita · /dev/world 2019
• 21mUnlock the Potential of Swift Code Generationtry! Swift Tokyo 2025
• 05mIntroducing SourceKit-LSPRyo Izumi · try! Swift Tokyo 2019
• 38mType-safe meta programming in Swift? Lets talk about Sourcery.Krzysztof Zabłocki · Oredev 2017
• 34mThat Swift IDEMarcin Krzyzanowski · App Builders Switzerland 2019
• 33mScaling Swift DevelopmentMarek Fořt · Swift Rockies 2026
• 27mAST Meta-programmingKishikawa Katsumi · try! Swift Tokyo 2018