Awesome Scala

milessabin/shapeless

Generic programming for Scala

lloydmeta/enumeratum

A type-safe, reflection-free, powerful enumeration implementation for Scala with exhaustive pattern match warnings and helpful integrations.

scalalandio/chimney

Scala library for boilerplate-free, type-safe data transformations

typelevel/simulacrum

First class syntax support for type classes in Scala

typelevel/kind-projector

Compiler plugin for making type lambdas (type projections) easier to write

softwaremill/magnolia

Easy, fast, transparent generic derivation of typeclass instances

oleg-py/better-monadic-for

Desugaring scala `for` without implicit `withFilter`s

arainko/ducktape

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 🤔

thoughtworksinc/dsl.scala

A framework to create embedded Domain-Specific Languages in Scala

thoughtworksinc/each

A macro library that converts native imperative syntax to scalaz's monadic expressions

typelevel/shapeless-3

Generic programming for Scala

scala-records/scala-records

Labeled records for Scala based on structural refinement types and macros.

thangiee/freasy-monad

Easy way to create Free Monad using Scala macros with first-class Intellij support.

alexarchambault/data-class

case-classes with better binary compatibility story

thoughtworksinc/enableif.scala

A library that toggles Scala code at compile-time, like #if in C/C++

miniboxing/miniboxing-plugin

Miniboxing is a program transformation that improves the performance of Scala generics when used with primitive types. It can speed up generic collections by factors between 1.5x and 22x, while maintaining bytecode duplication to a minimum. You can easily add miniboxing to your sbt project:

iscpif/freedsl

Practical effect composition library based on abstract wrapping type and the free monad

bishabosha/enum-extensions

Generic Framework over Scala 3 enumerations

katrix/perspective

Higher kinded data in Scala

mateuszkubuszok/pipez

Generate type mappers for your own type class