From IL Weaving to Source Generators, the Realm story
summary
Realm .NET moves from IL weaving to Source Generators after a six‑month effort and a November 2022 release that embeds the generator in the SDK; IL weaving originally injects get/set behavior into compiled DLLs, source generators emit readable C# at compile time, and the team keeps a tiny post‑compile weaver because generators are only additive until C# 13 adds partial properties. Result: debuggable generated code, faster feature work (nullability, new types), acceptable performance with plans for incremental generators, and no major user complaints.
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chapters (10)
- 0:00Introduction to code generation
- 1:23Understanding IL weaving
- 8:22Introduction to source generators
- 12:50Realm database features
- 16:37The role of IL weaving in Realm
- 20:24Drawbacks of IL weaving
- 23:41Transitioning to source generators
- 25:50Pros and cons of source generators
- 28:38The hybrid implementation
- 34:34Future plans and conclusion
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