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Scala should support Unicode supplementary characters

enhancement

has PR

help wanted

Status: Closed (completed).

#1406 In scala/bug;

· by scabug was closed on Aug 2, 2021

report error when using wildcard for top-level type parameter name

compiler crash

has PR

typer

Status: Closed (completed).

#5606 In scala/bug;

· by scabug was closed on Oct 7, 2021

The backend never generates iinc

backend

has PR

performance

Status: Closed (completed).

#7452 In scala/bug;

· by scabug was closed on Jul 30, 2021

Unchecked warning missing when enclosing class type parameter is used as a type argument

patmat

Status: Closed (completed).

#9188 In scala/bug;

· by scabug was closed on Feb 13, 2025

Unhelpful messages on badly formed unapplySeq

patmat

Status: Closed (completed).

#9538 In scala/bug;

· by scabug was closed on Aug 3, 2021

package object misbehaves in the presence of classfiles

has PR

package objects

Status: Closed (completed).

#4695 In scala/bug;

· by scabug was closed on Jul 9, 2021

specialized references specialized: IllegalAccessError

bytecode

has PR

specialization

Status: Closed (completed).

#4511 In scala/bug;

· by scabug was closed on Aug 17, 2021

Seqless unapplySeq partially unapplied

patmat

Status: Closed (completed).

#9869 In scala/bug;

· by scabug was closed on Aug 3, 2021

Option to failFast on zip and sequence

concurrency

enhancement

library

minimized

Status: Closed (completed).

#8994 In scala/bug;

· by scabug was closed on Jun 7, 2021

Specialized default parameters has no definition

backend

named/default args

runtime crash

specialization

Status: Closed (completed).

#9014 In scala/bug;

· by scabug was closed on Jul 14, 2021

The AnnotatedType seems not working with ExistentialType in the runtime reflection

annotations

has PR

reflection

regression

Status: Closed (completed).

#10016 In scala/bug;

· by scabug was closed on Jul 20, 2021

Wildcard type parameter causes java.lang.AbstractMethodError

has PR

Status: Closed (completed).

#10363 In scala/bug;

· by ocadaruma was closed on Jul 20, 2021

AbstractMethodError if a value case class has a protected field

case class

runtime crash

valueclass

Status: Closed (completed).

#10588 In scala/bug;

· by Atry was closed on Oct 29, 2023

Context-bound on unnamed type parameter becomes Any

typer

Status: Closed (completed).

#11425 In scala/bug;

· by dwijnand was closed on Mar 29, 2025

Unstable compiler output depending on order of package.scala and client code that uses type aliased defined therein

compiler determinism

Status: Closed (completed).

#12092 In scala/bug;

· by retronym was closed on Jul 9, 2021

Unused temporary for lonely vararg in named args rewrite

fixed in Scala 3This issue does not exist in the Scala 3 compiler (https://github.com/lampepfl/dotty/)This issue does not exist in the Scala 3 compiler (https://github.com/lampepfl/dotty/)

has PR

help wanted

performance

Status: Closed (completed).

#11964 In scala/bug;

· by som-snytt was closed on Jun 8, 2021

inconsistent logic when override self type method

Status: Closed (completed).

#11924 In scala/bug;

· by ohze was closed on May 27, 2021

scala.tools.nsc.javac.JavaParsers can't parse JDK14 records

help wanted

jdk17

parser

Status: Closed (completed).

#11908 In scala/bug;

· by xuwei-k was closed on Jul 8, 2021

Mixin trait using abstract member of parent class won't compile when they reside in different packages

backend

Status: Closed (completed).

#12249 In scala/bug;

· by Naitreey was closed on Oct 10, 2024

Wrong code generated when specializing a class inherited from a trait using a value

specialization

Status: Closed (completed).

#12221 In scala/bug;

· by OndrejSpanel was closed on Jul 20, 2021

Scala Grammar

has PR

help wanted

language spec

Status: Closed (completed).

#12260 In scala/bug;

· by Gameonlp was closed on Jun 14, 2021

JLine 3: Support camel-cased, acronym-style completion as previously

has PR

repl

Status: Closed (completed).

#12267 In scala/bug;

· by SethTisue was closed on Aug 9, 2021

ArrayBufferView is fundamentally broken

has PR

library:collections

Status: Closed (completed).

#12284 In scala/bug;

· by NthPortal was closed on Oct 12, 2021

AbstractMethodError or IllegalAccessError exception calling member of a specialized class in another module

specialization

Status: Closed (completed).

#12222 In scala/bug;

· by OndrejSpanel was closed on Aug 9, 2021

Specialization + dependent method type --> inconsistent symbols

depmet

specialization

Status: Closed (completed).

#12210 In scala/bug;

· by adriaanm was closed on Jun 2, 2021