Issues

• Support Java 25 without warnings

  softwaremill/magnolia#671 · Filter by author atennapel opened on Sep 11, 2026

• unused warnings after macro expansion for sealed traits

  softwaremill/magnolia#634 · Filter by author road21 opened on Mar 12, 2026
  2

• Support covariant typeclass families

  softwaremill/magnolia#627 · Filter by author nigredo-tori opened on Feb 17, 2026
  4

• Consider enum cases as objects?

  softwaremill/magnolia#598 · Filter by author OlegYch opened on May 26, 2025
  3

• Missing typeName / typeInfo for case class parameters on Scala 3

  softwaremill/magnolia#582 · Filter by author neko-kai opened on Feb 27, 2025
  1

• Bring the scala3-v2 branch up-to-date, review, publish

  softwaremill/magnolia#552 · Filter by author adamw opened on Oct 30, 2024
  2

• [question] Derivation differences between Scala 2 and 3

  softwaremill/magnolia#550 · Filter by author cptwunderlich opened on Oct 24, 2024
  3

• Does Magnolia 1 for Scala 2 support getting the original index of a subtype in a sealed trait?

  softwaremill/magnolia#514 · Filter by author ThijsBroersen opened on Feb 22, 2024
  7

• Typeclass Different from the Derived type

  softwaremill/magnolia#510 · Filter by author agaro1121 opened on Jan 12, 2024

• Support heterogenous typeclass derivation

  softwaremill/magnolia#503 · Filter by author gpoulin opened on Dec 19, 2023

• typeinfo is error-prone

  softwaremill/magnolia#475 · Filter by author OlegYch opened on Jun 16, 2023

• [bug] type arguments can't be determined from Any

  bug
  softwaremill/magnolia#472 · Filter by author kciesielski opened on Jun 13, 2023
  

• Question: Scala 3 automatic derivation

  softwaremill/magnolia#470 · Filter by author calvinlfer opened on May 31, 2023
  2

• Type classes for parameter are not lazy

  softwaremill/magnolia#466 · Filter by author steinybot opened on May 22, 2023
  3

• StackOverflowException for contra-variant type-class

  softwaremill/magnolia#464 · Filter by author alexandru opened on Apr 10, 2023
  1

• Magnolia interface unification for Scala 2 and Scala 3 versions

  softwaremill/magnolia#458 · Filter by author YaroslavSagach opened on Feb 15, 2023
  1

• Possibly improve how magnolia checks that an enum is not an ADT

  softwaremill/magnolia#456 · Filter by author adamw opened on Feb 2, 2023

• "Internal error: unable to find the outer accessor symbol of ..." when deriving instance for a nested type

  softwaremill/magnolia#449 · Filter by author notxcain opened on Jan 14, 2023
  3

• Add more typeclass examples and test cases.

  good first issuewarsaw-spree
  softwaremill/magnolia#439 · Filter by author micsza opened on Dec 5, 2022

• Recursive derivation not working

  softwaremill/magnolia#424 · Filter by author ahoy-jon opened on Sep 12, 2022

• Multiple Parameter Lists

  softwaremill/magnolia#416 · Filter by author fdietze opened on Aug 10, 2022
  1

• Null typeclass for Param in automatic derivation

  softwaremill/magnolia#402 · Filter by author wsargent opened on May 30, 2022
  2

• Regression in recursive data types derivation

  softwaremill/magnolia#401 · Filter by author ghostbuster91 opened on May 15, 2022

• macro implementations cannot have implicit parameters other than WeakTypeTag evidences

  softwaremill/magnolia#396 · Filter by author vuhainguyen opened on Apr 24, 2022
  4

• method is declared as erased, but is in fact used

  scala3
  softwaremill/magnolia#374 · Filter by author adamw opened on Jan 24, 2022
  2