I created library that helps creating C# source code generator for Roslyn.
In short it allows to write C# code with nice Fluent API that is context aware:
context.WithClass(Path.GetFileNameWithoutExtension(file.FileName),
c => c.WithMethod("Log",
m => m.WithBody(b => b.Append($"Console.WriteLine({file.Content.TripleQuote()});")))
);
Which is much easier to write than giant spaghetti of variable, formatted strings.
Original Roslyn APIs are a bit hard to use so this package helps with that. Also it helps with:
- automatically emitting using statements
- formatting generated code
- with importing types during code generation
- with indentation and parenthesis balancing
- helps with adding and using method parameters in generated code
- `async` methods generation
- provides nicer to use wrappers to Roslyn `IncrementalValueProvider` and others
- allows to share pieces of code between files/classes (i.e. interfaces implementation)
I put instruction on how to use it on my blog here: https://internetexception.com/2025/10/02/writing-simple-c-so...
Also here is a video of this library working plugged into a project in Rider IDE:
https://internetexception.com/wp-content/uploads/2025/10/cod...
