SourceGen

A collection of C# Source Generators for compile-time code generation.

Packages

Package	Description
	IoC/DI registration source generator for Microsoft.Extensions.DependencyInjection.Abstractions
	CLI tool for adding IoC attributes to existing projects

SourceGen.Ioc

A C# source generator that extends Microsoft.Extensions.DependencyInjection.Abstractions by generating registration code at compile time.

Compared to MS.E.DI

Feature	MS.E.DI	SourceGen.Ioc
Open Generic	Runtime resolution only	✅ Auto-discovers closed types from usage
Nested Open Generic	❌	✅ Auto-discovery + [IocDiscover]
Decorator Pattern	❌	✅ With type constraint validation
Field/Property/Method Injection	❌	✅ [IocInject]
Lifecycle validation	Runtime errors	✅ Compile-time
Circular dependency	Runtime errors	✅ Compile-time

Quick Start

dotnet add package SourceGen.Ioc

using SourceGen.Ioc;
using Microsoft.Extensions.DependencyInjection;

public interface IMyService;

[IocRegister<IMyService>(ServiceLifetime.Scoped)]
internal class MyService : IMyService;

// Register in DI container
services.AddMyProject(); // Generated extension method

Documentation

See full documentation for all features including defaults, keyed services, decorators, open generics, tags, modules, wrappers, factory/instance registration, and compile-time containers.

License

MIT