dotnet-source-generation-first

Overview

Prefer compile-time source generation over runtime reflection for repetitive cross-cutting concerns like mapping, serialization, regex, and logging. Source generation provides determinism, compile-time verification, reduced runtime overhead, and better AOT/trimming compatibility.

When to Use

• Introducing or reviewing repetitive cross-cutting mechanisms (mappers, serializers, regex, logging templates)
• Building performance-sensitive systems or services with startup-time concerns
• Targeting AOT compilation or assembly trimming scenarios
• Evaluating mapping or serialization libraries for a new project
• Reviewing PRs that propose reflection-based or runtime codegen approaches

Core Workflow