Best resource to learn Scalia 3 metaprogramming

1. ducktape

   1 5 420 9.3 Scala

   Automatic and customizable compile time transformations between similar case classes and sealed traits/enums, essentially a thing that glues your code. Scala 3 only. Or is it duct 🤔

   

   I’m looking for small Scala 3 exclusive (mixing it with 2 makes much harder to distinguish) projects with use of metaprogramming where I can learn more and perhaps contribute. Ducktape (https://github.com/arainko/ducktape) is a great example. Any blog posts would be even better.

2. InfluxDB

   www.influxdata.com featured

   InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.

   

3. dotty

   2 73 6,009 9.9 Scala

   The Scala 3 compiler, also known as Dotty.

   

   Then start playing with reflection API - I suggest having Quotes opened in your IDE, and documentation in your browser. Use showRaw to print expressions you constructed - it will help you understand how to build from ground up when you cannot build something using only expressions.

4. zio-protoquill

   3 6 216 8.7 Scala

   Quill for Scala 3

   

   Among Scala 3-only macro codebases is proto-quill (Quill for Scala 3). Other than that most libraries will be cross-compiled Scala 2 and Scala 3 because they have to cater to both long-time Scala 2 users as well as those who already migrated.

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