Exploring Source Generators
summary
Shows how Roslyn APIs plus NuGet analyzers generate real C#: a Json serialization Source Generator that precompiles read/write logic (claiming ≈40% faster startup in some caching benchmarks), a logging generator that emits isEnabled checks and structs, a regex generator, LibraryImport/JS import marshalling for .NET 7, and a custom auto‑notify + builder generator built and validated via unit tests and Verify testing. Visual Studio 2022’s incremental generators reduce IDE rework; generators run, emit diagnostics, and the demos compile and execute.
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chapters (15)
- 0:00Source Generators intro
- 1:07Why Source Generators
- 8:39Built-in .NET 6/7 generators
- 14:56Json Serialization with generators
- 15:16Logging optimization
- 18:18Razor views pre-compiled
- 20:03Regex compilation in .NET 7
- 22:13Native interop library import
- 26:47WebAssembly JS interop
- 30:07Custom generator tutorial
- 42:14Incremental generators in VS 2022
- 45:26Advanced generator features
- 49:43Deploying generators
- 51:07Real-world examples
- 51:57Q&A
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