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Issues list

Certain value classes compiled with Scala 2 can't be used with Scala 3 area:value-classes Issues tied to value classes. compat:scala2 itype:bug
#23163 opened May 14, 2025 by jadenPete
4
Dotty Type Erasure for Scala 2 compound types is wrong area:erasure area:spec compat:scala2 itype:bug
#22525 opened Feb 5, 2025 by hamzaremmal
1
Internal "Wrong number of arguments" error when reading a Scala 2 annotation in a macro area:metaprogramming:reflection Issues related to the quotes reflection API area:pickling compat:scala2 itype:bug
#22200 opened Dec 12, 2024 by jchyb
2
Runtime java.lang.NoSuchMethodError when calling a method in anonymous class returning a mixin area:erasure compat:scala2 itype:bug
#22177 opened Dec 9, 2024 by jchyb
1
Show correct version when using util.Properties.versionNumberString area:tooling compat:scala2 itype:bug
#22144 opened Dec 5, 2024 by tgodzik
@hamzaremmal
9
Dotty emit wrong generic signature for generic value classes area:value-classes Issues tied to value classes. compat:java compat:scala2 itype:bug
#22140 opened Dec 4, 2024 by hamzaremmal
@hamzaremmal
2
Scala 2 regression: extension method is not searched in the companion object of a type parameter's parameter area:extension-methods area:implicits related to implicits compat:scala2 itype:bug regression:scala2
#21951 opened Nov 14, 2024 by neko-kai
Asymmetric generic signatures for HKT in covariant/contravariant types area:backend compat:scala2 itype:bug
#21576 opened Sep 11, 2024 by WojciechMazur
2
Clarify -Wconf:help that last setting wins, including in comma-separated setting text area:linting Linting warnings enabled with -W or -Xlint compat:scala2 itype:bug
#19885 opened Mar 5, 2024 by lrytz
10
define a alias of annotation compat:scala2 itype:bug stat:needs info
#18802 opened Oct 31, 2023 by cjdxhjj
5
scaladoc generates warnings: No DRI found for query: ... area:doctool compat:scala2 itype:bug
#17578 opened May 24, 2023 by reid-spencer
@Florian3k
5
Default arguments of final method are not final compat:scala2 itype:bug
#17519 opened May 16, 2023 by nicolasstucki
2
No implicit argument of type F[T] was found (works in Scala 2) area:typer compat:scala2 itype:bug
#15210 opened May 18, 2022 by fdietze
4
-Xignore-scala2-macros prevents from compiling if there is a harmless implicit macro area:implicits related to implicits compat:scala2 itype:bug
#14758 opened Mar 23, 2022 by taisukeoe
@nicolasstucki
Multiarg infix is not supported in op= rewrite area:parser compat:scala2 itype:bug
#14418 opened Feb 5, 2022 by som-snytt
7
Scala3doc: No DRI found for query area:doctool compat:scala2 itype:bug
#14212 opened Jan 5, 2022 by ekrich
@pikinier20
12
constructor default parameters are reused for case class apply area:desugar Desugaring happens after parsing but before typing, see desugar.scala area:documentation compat:scala2
#13324 opened Aug 18, 2021 by bishabosha
@bishabosha
7
Confusing behaviour with abstract var and override area:refchecks compat:scala2 itype:bug stat:needs spec
#13019 opened Jul 5, 2021 by oyvindberg 3.1.1
1
@bishabosha
3
pass Array[String with Int] to Scala 2 causes ClassCastException compat:scala2 itype:bug
#12203 opened Apr 23, 2021 by bishabosha
Avoid bridge clashes involving value classes for anonymous classes area:erasure compat:scala2 itype:enhancement
#11264 opened Jan 31, 2021 by smarter
3
Compile to jar file in Windows crashes if the target jar is specified in classpath area:backend compat:scala2 compat:windows itype:bug itype:crash
#10775 opened Dec 13, 2020 by philwalk
5
implicit <:< in combination with a default implicit parameter fails to compile area:typer compat:scala2 itype:bug
#10497 opened Nov 25, 2020 by Avasil
Improve debugging support by implementing JSR-45 area:backend compat:scala2 help wanted itype:enhancement
#9715 opened Sep 3, 2020 by smarter
1
@Kordyjan
Abstract type referred to in Structural Refinement compat:scala2 stat:needs spec
#8563 opened Mar 17, 2020 by bishabosha
2
The singleton instance trick used by =:= is unsound compat:scala2
#8430 opened Mar 3, 2020 by smarter
@abgruszecki
40
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