Monocle
Optics library for Scala (by optics-dev)
Enumeratum
A type-safe, reflection-free, powerful enumeration implementation for Scala with exhaustive pattern match warnings and helpful integrations. (by lloydmeta)
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| Monocle | Enumeratum | |
|---|---|---|
| 5 | 4 | |
| 1,630 | 1,177 | |
| 0.2% | - | |
| 8.2 | 5.7 | |
| 4 days ago | about 1 month ago | |
| Scala | Scala | |
| MIT License | MIT License |
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.
Monocle
Posts with mentions or reviews of Monocle.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-04-12.
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Ref in cats-effect. When should I use it, and when should I not?
Without concurrency, using a Ref doesn't buy you anything over just using a var. If you want the benefits of immutability with an API that resembles mutability, you have to use something like Monocle.
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Show HN: Monocle – bidirectional code generation library
A very popular Scala optics library is also called Monocle. I’ve been a happy user for a few years:
https://github.com/optics-dev/Monocle
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Monocle 3 release candidate - a super useful and simple library for optics with poetic api
See example https://www.optics.dev/Monocle/
- Monocle 3.0.0-M1 is released for Scala 2.13 and Scala 3
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Monocle 3 Roadmap
We always have work to do, for example to define scalfix rules to automate the migration https://github.com/optics-dev/Monocle/issues/1001
Enumeratum
Posts with mentions or reviews of Enumeratum.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-02-26.
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How to implement `if-else if -else if -else` with cat effect IO in Scala?
I'm not sure I understand what Cats or cats-effect has to do with what you're trying to do. As far as I can tell, it sounds like what you're asking is simply "what's the best way to implement an enumerated type in Scala?" The best answer to that I'm aware of is Enumeratum.
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Concise enumeration in Scala
In Scala 2: enumeratum which is, essentially, option 3 from your post.
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Simple, Naïve, and Wrong: More than you wanted to know about Scala Case Classes
And for exactly the same reasons one shouldn't override equals and hashCode in a case class, they shouldn't manually implement an enumeration and instead let a well-tested macro (2.x) or the compiler itself (3.x) handle reliably doing the automated code generation. The more code that is generated by the compiler, the smaller the defects, technical debt, and security vulnerability surface areas.
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A survey of programming language enum support
For Scala, check out the enumeratum library (https://github.com/lloydmeta/enumeratum). In my opinion its the best enum implementation I know of. It has all the features defined in the table, and the syntax is really clean. It even supports unique associated values (eg. unique String/Int keys).
What are some alternatives?
When comparing Monocle and Enumeratum you can also consider the following projects:
Quicklens - Modify deeply nested case class fields
Chimney - Scala library for boilerplate-free, type-safe data transformations
Shapeless - Generic programming for Scala
Scala Async - An asynchronous programming facility for Scala
cats - Lightweight, modular, and extensible library for functional programming.
Each - A macro library that converts native imperative syntax to scalaz's monadic expressions
Scalaz - Principled Functional Programming in Scala
Scala Graph - Graph for Scala is intended to provide basic graph functionality seamlessly fitting into the Scala Collection Library. Like the well known members of scala.collection, Graph for Scala is an in-memory graph library aiming at editing and traversing graphs, finding cycles etc. in a user-friendly way.