Making Your Own Tools Using SwiftSyntax

on YouTube ↗33m

" summary

SwiftSyntax (installed via SPM) parses Swift source into a libSyntax tree and allows precise inspection and transformation using SyntaxParser via SPM, SyntaxVisitor/SyntaxRewriter and SyntaxFactory. Concrete tools built: SwiftConst to find repeated string literals, a SwiftASTExplorer HTML viewer for JSON trees, an odd-number inspector that prints warnings for odd integer literals, and a formatter that rewrites integer literals (multiplies by 10). Each tool uses the parsed tokens and visitor/rewriter flow and runs successfully on example projects; performance and function-builder creation are improving.

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" chapters (8)

1. 0:00Introduction to Swift syntax
2. 2:24Existing tools and usage
3. 5:13Understanding syntax trees
4. 8:19Emitting and viewing syntax
5. 11:01Core components and setup
6. 17:40Visitors and factories
7. 21:21Practical implementation
8. 26:46Future outlook and conclusion

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