Shapeless
zio-protoquill
Shapeless | zio-protoquill | |
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13 | 6 | |
3,369 | 195 | |
- | 1.5% | |
7.4 | 8.6 | |
6 days ago | 1 day ago | |
Scala | Scala | |
Apache License 2.0 | Apache License 2.0 |
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Shapeless
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Question regarding Recursive datatypes and cats typeclasses (Haskell to Scala)
Scala 2-only: * Shapeless (there is Shapeless for Scala 3 but less often needed as basic things are in Scala 3)
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Is there the equivalent of this in Scala ? (Maps to Struct)
This is the FromMap typeclass in Shapeless. Note that there’s a companion syntax package for it providing .toRecord for any Map and an appropriately-structured Record (and a Record is the LabelledGeneric representation of a case class).
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Scala 3: modifying product types in compile-time
If that's what you want, you can use Shapeless' records and HList. You can probably replicate this in plain Scala 3 with tuples and literal types as you said. It won't play nice with your others libs though but maybe there are integrations.
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Does Scala have support for Dependent types?
See the Shapeless Sized example.
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How does Scala's type system compare to TypeScript's? Is it as powerful?
Shapeless has Sized: https://github.com/milessabin/shapeless/blob/v2.3.9/core/src/main/scala/shapeless/sized.scala
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Fp libraries that target scala 3 exclusively?
I know that libraries like Scodec and shapeless were rewritten practically from scratch for Scala 3, taking advantage of the next syntax and internals, as well as protoquill - a Scala 3 implementation of Quill.
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Delphi 11 Alexandria Has Been Released
please show me something like this: https://akka.io/ or this: https://zio.dev/ or this: https://github.com/milessabin/shapeless
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6 Years of Professional Clojure
That largely depends on the type system. Languages like Haskell and Scala which have much more powerful type systems than C/Java/Go/etc absolutely do allow you to do those sorts of things. It is a bit harder to wrap your head around to be sure and there are some rough edges, but once you get the hang of it you can get the benefits of static typing with the flexibility of dynamic typing. See https://github.com/milessabin/shapeless or a project that I've been working on a lot lately https://github.com/zio/zio-schema.
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Scala3: Does it provide a simplified way of doing n-term generic parameters?
Just use cats and use the apply syntax .mapN for this. Seriously. There isn't a way to do it without generating source code that I can see in the api. Scala 3's HList Tuples aren't like Shapeless 2's HLists and I can't figure out a way in the api to reduce the tuple members down from (A, B, C, D) into an E, generically, yet with Scala 3 poly functions, unlike what you could do in Shapeless 2 with HList
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Scala: A Love Story
Scala has sparked a huge ecosystem of very high quality libraries (Cats, Scalaz, shapeless, to name but a few). I think a major reason for this is that Scala attracts developers who value the advantages of the JVM, but are fed up with the limitations of the Java programming language and understand the benefits of an expressive type system and functional programming.
zio-protoquill
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Scala 3 migration: 7 benefits that outweigh the risks
There is: https://github.com/zio/zio-protoquill
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Best resource to learn Scalia 3 metaprogramming
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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Scala 3 compatible macro libraries
Proto Quill, a query DSL similar-ish to Slick, is certainly the poster child of what's possible with Scala 3 macros.
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Fp libraries that target scala 3 exclusively?
I know that libraries like Scodec and shapeless were rewritten practically from scratch for Scala 3, taking advantage of the next syntax and internals, as well as protoquill - a Scala 3 implementation of Quill.
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Software development topics I've changed my mind on after 6 years in the industry
I am a Scala engineer and have upstreamed a lot of open source projects to do this, (i.e. see https://github.com/getquill/protoquill/pull/17). Basically its a github action that runs concurrently to the main build, this has the following advantages
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ZIO vs. Cats Effect for api
I've been refreshing https://github.com/getquill/protoquill nearly every day!
What are some alternatives?
cats - Lightweight, modular, and extensible library for functional programming.
Quill - Compile-time Language Integrated Queries for Scala
magnolia - Easy, fast, transparent generic derivation of typeclass instances
zio-http - A next-generation Scala framework for building scalable, correct, and efficient HTTP clients and servers
Monocle - Optics library for Scala
scodec - Scala combinator library for working with binary data
Scalaz - Principled Functional Programming in Scala
kyuubi - Apache Kyuubi is a distributed and multi-tenant gateway to provide serverless SQL on data warehouses and lakehouses.
Chimney - Scala library for boilerplate-free, type-safe data transformations
HttpClientFactory - [Archived] Contains an opinionated factory for creating HttpClient instances. Project moved to https://github.com/aspnet/Extensions
scala-newtype - NewTypes for Scala with no runtime overhead
git-issue - Git-based decentralized issue management