scalacenter/scala-debug-adapter

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Implementation of the Debug Adapter Protocol for Scala

Stars: 66
Forks: 29
Open beginner issues: 0
Indexed issues: 40
Avg merge: 2d 1h
Merged PRs (30d): 6

Dominant language: Scala
License: Apache-2.0
Last GitHub push: Sep 14, 2026
Latest indexed: Sep 19, 2026
Contributing guide: Contributing guide
Code of conduct: Code of conduct
Beginner labels: good first issue

Beginner friendly Everything

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40 open issues indexed

I'm getting this error when attempting to debug a Scala 3.8.2 compiled program from Vscode: Open

Difficulty 3/5 1-2 days Newbie friendliness 42/100

scalacenter/scala-debug-adapter#958 · 1 comment · Opened Apr 19, 2026
Missing breakpoint when enclosing class contains package name Open

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scalacenter/scala-debug-adapter#886 · Opened Aug 17, 2025
IOException: Is a directory when evaluating expression Open

Difficulty 4/5 3-5 days Newbie friendliness 25/100

scalacenter/scala-debug-adapter#804 · 2 comments · Opened Dec 2, 2024
Warning causing evaluation to fail Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

scalacenter/scala-debug-adapter#747 · 4 comments · Opened May 13, 2024
Load classpath only once Open

core enhancement

Difficulty 4/5 3-5 days Newbie friendliness 45/100

scalacenter/scala-debug-adapter#710 · Opened May 8, 2024
Add step filter configuration Open

enhancement step filter

Difficulty 5/5 Over a week Newbie friendliness 25/100

scalacenter/scala-debug-adapter#695 · 1 reaction · Opened Apr 10, 2024
Expr evaluator in Java file: throws ClassNotFoundException: pack.ExpressionXYZ Open

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scalacenter/scala-debug-adapter#663 · 1 comment · Opened Feb 19, 2024
[Runtime evalution] evaluation of eq Open

enhancement runtime evaluation

Difficulty 3/5 1-2 days Newbie friendliness 35/100

scalacenter/scala-debug-adapter#653 · Opened Feb 7, 2024
Should skip all classes in `scala.runtime` Open

enhancement step filter

Difficulty 3/5 1-2 days Newbie friendliness 25/100

scalacenter/scala-debug-adapter#652 · Opened Feb 7, 2024
[Scala 3 decoder] Cannot decode `List$.apply(Seq): Object` Open

bug decoder

Difficulty 3/5 1-2 days Newbie friendliness 25/100

scalacenter/scala-debug-adapter#651 · Opened Feb 7, 2024
[Scala 3 decoder] cannot decode `package$chaining$.scalaUtilChainingOps(Object): Object` Open

bug decoder

Difficulty 4/5 3-5 days Newbie friendliness 25/100

scalacenter/scala-debug-adapter#650 · Opened Feb 7, 2024
[Runtime Evaluation] Creation of arrays Open

enhancement runtime evaluation

Difficulty 3/5 1-2 days Newbie friendliness 35/100

scalacenter/scala-debug-adapter#647 · Opened Feb 7, 2024
[Runtime Evaluation] Call method in `Predef` Open

enhancement runtime evaluation

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scalacenter/scala-debug-adapter#645 · Opened Feb 6, 2024
[Runtime Evaluation] Cannot evaluate `size` on `String` Open

enhancement runtime evaluation

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scalacenter/scala-debug-adapter#644 · Opened Feb 6, 2024
[Runtime evaluation] Numeric conversion Open

enhancement runtime evaluation

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scalacenter/scala-debug-adapter#643 · Opened Feb 6, 2024
[Runtime evaluation] Cannot assign an element of an array Open

enhancement runtime evaluation

Difficulty 3/5 1-2 days Newbie friendliness 35/100

scalacenter/scala-debug-adapter#642 · Opened Feb 6, 2024
Evaluating anything in `ReferenceQueue.<init>` freezes the debugger Open

bug runtime evaluation

Difficulty 4/5 3-5 days Newbie friendliness 25/100

scalacenter/scala-debug-adapter#631 · 1 comment · Opened Jan 18, 2024
Unsupported evaluation Open

Difficulty 4/5 3-5 days Newbie friendliness 30/100

scalacenter/scala-debug-adapter#577 · Opened Aug 25, 2023
Evaluation error instead of null value at runtime Open

bug runtime evaluation spree

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scalacenter/scala-debug-adapter#564 · Opened Aug 10, 2023
Failed evaluation of encoded outer Open

bug expression compiler

Difficulty 4/5 3-5 days Newbie friendliness 45/100

scalacenter/scala-debug-adapter#547 · Opened Aug 2, 2023
Cannot find `liftedTree1$1` Open

bug decoder

Difficulty 4/5 3-5 days Newbie friendliness 25/100

scalacenter/scala-debug-adapter#509 · 1 comment · Opened Jul 14, 2023
Unexpected `NullPointerException` Open

bug testing

Difficulty 4/5 3-5 days Newbie friendliness 25/100

scalacenter/scala-debug-adapter#473 · 1 comment · Opened Jun 27, 2023
Use span from TASTy to insert expression in the expression compiler Open

enhancement expression compiler

Difficulty 4/5 3-5 days Newbie friendliness 30/100

scalacenter/scala-debug-adapter#400 · Opened Apr 5, 2023
Go to definition of a function Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scalacenter/scala-debug-adapter#398 · Opened Apr 4, 2023
Add a collection formatter Open

enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scalacenter/scala-debug-adapter#397 · 4 comments · Opened Apr 4, 2023
Move the Scala 3 expression compiler to the dotty codebase Open

Difficulty 5/5 Over a week Newbie friendliness 30/100

scalacenter/scala-debug-adapter#396 · Opened Apr 4, 2023
Create the tasty-binary-lookup library Open

enhancement

Difficulty 5/5 Over a week Newbie friendliness 25/100

scalacenter/scala-debug-adapter#395 · Opened Apr 4, 2023
[Scala 3] Stepping into a method containing a single pattern matching Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 25/100

scalacenter/scala-debug-adapter#334 · Opened Nov 10, 2022
[Scala 3] Wrong captured variable in `for ... <- ... yield` body Open

bug

Difficulty 4/5 3-5 days Newbie friendliness 20/100

scalacenter/scala-debug-adapter#289 · 2 comments · Opened Oct 11, 2022
[Scala 3] Evaluation of local method or local class in a value class Open

enhancement expression compiler

Difficulty 5/5 Over a week Newbie friendliness 25/100

scalacenter/scala-debug-adapter#238 · Opened Jun 14, 2022
Evaluation of local lazy val in Scala 3 Open

enhancement expression compiler

Difficulty 5/5 Over a week Newbie friendliness 25/100

scalacenter/scala-debug-adapter#236 · 1 comment · 1 reaction · Opened Jun 14, 2022
Different behavior with `@main` vs `extends App` for variables in scope Open

Difficulty 4/5 3-5 days Newbie friendliness 32/100

scalacenter/scala-debug-adapter#200 · 1 comment · Opened Mar 19, 2022
Should step in object constructor Open

core enhancement

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scalacenter/scala-debug-adapter#127 · Opened Oct 7, 2021
Speed up the tests Open

core testing

Difficulty 4/5 3-5 days Newbie friendliness 35/100

scalacenter/scala-debug-adapter#84 · Opened Aug 26, 2021
Cache the `ClassEntryLookUp`s Open

core enhancement

Difficulty 5/5 Over a week Newbie friendliness 35/100

scalacenter/scala-debug-adapter#81 · 3 comments · Opened Aug 26, 2021
Add support for Ammonite script Open

core enhancement

Difficulty 3/5 1-2 days Newbie friendliness 45/100

scalacenter/scala-debug-adapter#67 · Opened Aug 10, 2021
Terminated message not send before disconnecting Open

bug core

Difficulty 3/5 1-2 days Newbie friendliness 38/100

scalacenter/scala-debug-adapter#66 · 1 comment · Opened Aug 2, 2021
Auto-add in sbt-jdi-tools when using java8 Open

core enhancement sbt plugin

Difficulty 3/5 1-2 days Newbie friendliness 30/100

scalacenter/scala-debug-adapter#59 · 1 comment · Opened Jun 18, 2021
Show proper variable names on breakpoints Open

core enhancement

Difficulty 5/5 Over a week Newbie friendliness 30/100

scalacenter/scala-debug-adapter#38 · 2 comments · 1 reaction · Opened Mar 9, 2021
Print test reports in the sbt test-agent Open

enhancement good first issue sbt plugin

Difficulty 3/5 1-2 days Newbie friendliness 35/100

scalacenter/scala-debug-adapter#32 · 1 comment · Opened Feb 18, 2021

scalacenter/scala-debug-adapter

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