Unity Metaprogramming: Reflection, Source Generators, IL Weaving
Reflection, Roslyn Source Generators, IL Weaving, and Reflection.Emit are the most popular metaprogramming techniques you can use in Unity to make your code inspect, generate, or modify itself.
In this Unity metaprogramming deep dive, I break down when runtime reflection is enough, when to replace reflection with Roslyn Source Generators for better performance or cleaner builds, and when IL Weaving is the only way to get the job done. We’ll also cover where Reflection.Emit actually fits in Unity, what it can and can’t do (especially with IL2CPP/AOT), and how to choose the right approach for editor tools, runtime code, and performance-critical systems.
Want to master Dependency Injection in Unity?
👉 • Level Up Your Unity Game: Master Dependenc...
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Chapters:
00:00 Intro
00:22 What is Metaprogramming
01:16 Runtime Reflection
03:15 Reflection.Emit
05:04 Roslyn Source Generators
08:17 IL Weaving
10:13 When To Use What?
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#unity3d #unitytutorial #indiedev #metaprogramming