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Do you like it when compiler generates the boring code for you? Fast, mundane, boring-but-error-prone code? Do you need to implement such a code generator yourself? Have you found out that Shapeless/Mirrors bend your brain a bit too much?
Do you like it when compiler generates the boring code for you? Fast, mundane, boring-but-error-prone code? Do you need to implement such a code generator yourself? Have you found out that Shapeless/Mirrors bend your brain a bit too much?
Congratulations! You might have a valid use case for writing a macro! Plain-old code with some plain old, vals, defs and if-elses. So, we’re opening up an IDE, looking at the API and… oh, no. It’s so low-level. And error prone. And everyone needs to copy-paste the same utilities… which are handling like 50% of the cases, and for the remaining 50% politely asking you to rewrite your code to something actually supported.
Oh, and if your users are both on Scala 2 and Scala 3 you have to write everything twice. You’d better have some tests written to keep them aligned!At this point, you might reconsider using macros: maybe generate some files as managed source, or get back to Shapeless/Mirrors, or just write the boring and error-prone code by hand?
But it doesn’t have to be this way. We can have a standard library for macros that makes simple things simple, and hard things (at least) possible. And we can design it in such a way, that most of the code could be shared between Scala 2 and 3.
And this talk will show you how.
Writing client-facing APIs involves mundane tasks, whether it be REST, GraphQL, or gRPC. In this talk, I will pick two repetitive tasks during API development and demonstrate how we can utilize Scala to automate the most boring parts.
In this talk, I will present insights from running the Open Community Build, where we continuously build and migrate nearly 2,000 open-source projects to the newest Scala Next versions, from scratch, every week.
In this talk, I will introduce the highlights of what to look forward to in Scala 3.9 LTS, as well as how to think about the upcoming new release.
In my talk I will argue that we can do much better by relying in a systematic way on types and capabilities.
In this talk, we will refactor a real-world service using Extensions, Union Types, and Context Functions, demonstrating how to achieve a strictly typed, decoupled architecture that remains easy to read and evolve.
