magnolia
Easy, fast, transparent generic derivation of typeclass instances (by propensive)
Shapeless
Generic programming for Scala (by milessabin)
Our great sponsors
magnolia | Shapeless | |
---|---|---|
4 | 13 | |
740 | 3,360 | |
0.4% | - | |
7.6 | 7.5 | |
6 days ago | 8 days ago | |
Scala | Scala | |
Apache License 2.0 | Apache License 2.0 |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
magnolia
Posts with mentions or reviews of magnolia.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-07-06.
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Question regarding Recursive datatypes and cats typeclasses (Haskell to Scala)
Scala 2/3: * Magnolia
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Beginner's guide to derivations in Scala
If Mirror is too low level, I'd suggest playing with Magnolia https://github.com/softwaremill/magnolia. I haven't found any posts about it, I plan to publish something myself as a follow up to the one above. In the meantime you might want to check out magnolia examples https://github.com/softwaremill/magnolia/tree/scala3/src/examples
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Some notes on developing a structured logging API for Scala
The second feature is the auto-derivation for case classes using Magnolia. This saves a bunch of typing for case classes, while fitting neatly into field builders. This is not new if you've used Shapeless, but I found the macro-based approach in Magnolia much easier conceptually. I did find a small bug but it's easy enough to work around.
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How to improve scala skills
Using shapeless is completelly optional and has a lot of disadvantages. I'd not even consider it a good learning material for functional programming. Magnolia is a bit more robust and has much better design, debugging and implicits resolution - it will be less pointful than starting with shapeless.
Shapeless
Posts with mentions or reviews of Shapeless.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-07-06.
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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.
What are some alternatives?
When comparing magnolia and Shapeless you can also consider the following projects:
seals - Tools for schema evolution and language-integrated schemata
cats - Lightweight, modular, and extensible library for functional programming.
Learn-by-doing functional programming course on Scala - learn-by-doing course/tutorial for functional programming on scala
Monocle - Optics library for Scala
kittens - Automatic type class derivation for Cats
Scalaz - Principled Functional Programming in Scala
echopraxia-plusscala - Scala API for Echopraxia
Chimney - Scala library for boilerplate-free, type-safe data transformations
scala-newtype - NewTypes for Scala with no runtime overhead
cats-effect - The pure asynchronous runtime for Scala
scala.meta - Library to read, analyze, transform and generate Scala programs
magnolia vs seals
Shapeless vs cats
magnolia vs Learn-by-doing functional programming course on Scala
Shapeless vs Monocle
magnolia vs kittens
Shapeless vs Scalaz
magnolia vs echopraxia-plusscala
Shapeless vs Chimney
magnolia vs Chimney
Shapeless vs scala-newtype
magnolia vs cats-effect
Shapeless vs scala.meta