.NET Source Generators with .NET 7
<p>.NET source generators provide a framework level utility to dynamically generate source code both <em>at dev time and build time — </em>whether that’s whole classes, individual functions (using C# partial classes), or strongly-typed runtime bindings.</p>
<p>To better understand what this means, check out this capture below; when I add the <code>Product</code> entity class, the <code>ProductRepository</code> type <em>is created automatically by the generator:</em></p>
<p>Adding the Product class automatically produces the ProductRepository class</p>
<p>There is no <code>ProductRepository.cs</code>; this purely generated class is detected by the language server (for autocomplete) and gets added to the source tree at build time for static type checking, <em>but generates no actual file and requires no additional work </em>except to declare the <code>Product</code> type!</p>
<p>Aside from the release of LINQ and <code>System.Linq.Expressions</code> to support it, source generators are one of the key .NET platform meta-features. It can seem out-of-reach for everyday use cases, but in this article, we’ll explore how easy it is to incorporate it into your own projects.</p>
<p>In this exercise, we’ll explore source generators in the context of building a data access layer that allows us to dramatically reduce some of the more tedious, boiler-plate work involved. We’ll see how we can create a generator so that declaring an entity type automatically generates the scaffolding required to interact with that type.</p>
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