Inshiminator

Analyzer-guided shim generation for .NET applications

Inshiminator is a .NET-first developer toolkit that uses Roslyn analyzers, incremental source generators, and code fixes to insert clean shims around hard dependencies without forcing teams into invasive rewrites.

🚀 Key Features

• Detect: Automatically finds direct usage of DateTime.UtcNow, Guid.NewGuid(), File.ReadAllText, and more.
• Generate: Emits strongly typed abstractions (IClock, IGuidGenerator) and implementations (SystemClock, SystemGuidGenerator) at compile time, while also supporting framework abstractions like TimeProvider.
• Guide: Provides IDE code fixes to automatically inject shims into your classes.
• Govern: Enforce boundary rules through analyzer severity and baselines.

📦 Installation

dotnet add package Inshiminator.Analyzers
dotnet add package Inshiminator.Generators

🛠️ Example

Before:

public class OrderService
{
    public void CreateOrder()
    {
        var createdAt = DateTime.UtcNow; // ❌ Hard to test
    }
}

After (Automatic via Code Fix):

public class OrderService
{
    private readonly IClock _clock;

    public OrderService(IClock clock)
    {
        _clock = clock;
    }

    public void CreateOrder()
    {
        var createdAt = _clock.UtcNow; // ✅ Fully testable
    }
}

📜 License

MIT